Rationale and Surgical Technique for PCL and Multiple Knee
Transcription
Rationale and Surgical Technique for PCL and Multiple Knee
Rationale and Surgical Technique for PCL and Multiple Knee Ligament Reconstruction Gregory C. Fanelli, M.D. Featuring the Fanelli™ PCL/ACL System, Bio-Core™ Interference Screw, Poly Suture Button, Fanelli™ Magellan Suture Retriever and Graft Tensioning Boot The Fanelli™ PCL/ACL Guide facilitates accurate and reproducible tunnel placement for PCL and ACL Reconstructions. Fanelli™ Magellan Suture Retriever Fanelli™ System Instruments Graft Tensioning Boot Double Bundle Aimers • Facilitates suture retrieval during PCL and ACL reconstruction • Promotes reproducible graft passage • Facilitates PCL and ACL reconstruction techniques • Self retaining tensioner eliminates manual tensioning • Allows surgeon to use both hands for tibial fixation • Tension grafts up to 20 lbs • Size specific aimers for double bundle tunnel diameters • Allows visualization of tunnel placement in double bundle PCL and ACL procedures to provide adequate bone bridge Rationale and Surgical Technique for PCL and Multiple Knee Ligament Reconstruction Overview This manual contains the surgical technique for the transtibial tunnel posterior cruciate ligament (PCL) reconstruction, combined anterior cruciate ligament (ACL) and posterior cruciate ligament reconstruction using the Arthrotek® Fanelli™ PCL/ACL System, and several methods of medial and lateral side reconstructions. The reference section contains a list of text books, and scientific articles on these subjects, and the reader is referred to these resources for a more in depth review of the subject material. Patient Positioning The patient is placed on the operating room table in the supine position, and after satisfactory induction of anesthesia, the operative and nonoperative lower extremities are carefully examined. A tourniquet is applied to the upper thigh of the operative extremity, and that extremity is prepped and draped in a sterile fashion. When allograft tissue is used, it is prepared prior to bringing the patient into the operating room. Autograft tissue is harvested prior to beginning the arthroscopic portion of the procedure. The arthroscopic instruments are inserted with the inflow through the superolateral patellar portal. Instrumentation and visualization is achieved through inferomedial and inferolateral patellar portals, and can be interchanged as necessary. Additional portals are established as necessary. Exploration of the joint consists of evaluation of the patellofemoral joint, the medial and lateral compartments, medial and lateral menisci, and the intercondylar notch. When there is a posterior cruciate ligament tear, the tear of the PCL is identified and the intact anterior cruciate ligament is confirmed. The residual stump of the posterior cruciate ligament is debrided with the synovial shaver and hand tools as necessary. In the case of a combined ACL/PCL injury, the residual stumps of both the anterior and posterior cruciate ligaments are debrided. In patients with combined ACL/PCL injuries, the notchplasty for the ACL portion of the procedure is performed at this time. This brochure is presented to demonstrate the surgical technique utilized by Gregory Fanelli, M.D. Arthrotek, as the manufacturer of this device, does not practice medicine and does not recommend this or any other surgical technique for use on a specific patient. The surgeon who performs any procedure is responsible for determining and utilizing the appropriate techniques for such procedure for each individual patient. Arthrotek is not responsible for selection of the appropriate surgical technique to be utilized for an individual patient. Rehabilitation activities vary depending on the individual patient and physician’s recommendations. Bio-Core™ Interference Screw • Resorbable interference screw made of LactoSorb® L15 resorbable copolymer • Ability to be filled with autograft or allograft bone Poly Suture Button • Solid fixation for either primary or auxiliary fixation in ACL or PCL reconstruction • Distal fixation allows circumferential healing of the ACL and/or PCL graft to the tunnel wall The Fanelli™ PCL/ACL System was developed in conjunction with Gregory C. Fanelli, M.D., Danville, Pennsylvania. Bio-Core™ and Fanelli™ are trademarks of Arthrotek, Inc. LactoSorb® is a trademark of Biomet Manufacturing Corp. Surgical Technique Figure 1 Figure 2 Initial Incision Elevating the Capsule An extra capsular extraarticular posteromedial safety incision is made by creating an incision approximately 1.5 to 2cm long starting at the posteromedial border of the tibia approximately one inch below the level of the joint line and extending distally (Figure 1). Dissection is carried down to the crural fascia, which is incised longitudinally. Care is taken to protect the neurovascular structures. An interval is developed between the medial head of the gastrocnemius muscle posterior, and the capsule of the knee joint anterior. The surgeon’s gloved finger is able to position the neurovascular structures posterior to the finger and the capsule anterior to the finger (Figure 2). This is so that the surgeon can monitor tools such as the over-the-top PCL tools, and the Fanelli™ PCL/ACL drill guide as it is positioned in the posterior aspect of the knee. This also allows for accurate placement of the guide wire both in a medial lateral, and a proximal distal direction. The PCL and ACL reconstructions are performed with the knee in approximately 70˚– 90˚of knee flexion. The curved over-the-top PCL instruments are used to sequentially lyse adhesions in the posterior aspect of the knee, and elevate the capsule from the tibial ridge posterior. This will allow accurate placement of the Fanelli™ PCL/ACL guide, and correct placement of the tibial tunnel (Figure 3). Figure 3 Figure 5 Figure 4 Positioning of the Guide The arm of the Fanelli™ PCL/ACL guide is inserted through the inferior medial patellar portal. The tip of the guide is positioned at the inferior lateral aspect of the PCL anatomic insertion site. This is below the tibial ridge posterior and in the lateral aspect of the PCL anatomic insertion site. The bullet portion of the guide contacts the anteromedial surface of the proximal tibia at a point midway between the posteromedial border of the tibia, and the tibial crest anterior approximately 1cm below the tibial tubercle (Figure 4). This will provide an angle of graft orientation such that the graft will turn two very smooth 45˚ angles on the posterior aspect of the tibia and will not have an acute 90˚ angle turn which may cause pressure necrosis of the graft (Figure 5). The tip of the guide, in the posterior aspect of the tibia, is confirmed with the surgeon’s finger through the extracapsular extraarticular posteromedial safety incision. Intraoperative AP and lateral X-ray may also be used. The Fanelli™ PCL/ACL guide may be adjusted so that the guide wire shoots to the tip or the elbow of the guide as the surgeon prefers. When the Fanelli™ PCL/ACL guide is positioned in the desired area, a blunt spadetipped guide wire (909634) is drilled from anterior to posterior. The arthroscope, in the posterior medial portal, visualizes the tip of the guide wire. The surgeon’s finger confirms the position of the guide wire through the posterior medial safety incision. This is a double safety check. Surgical Technique Figure 6 Figure 7 Drilling the Tibial Tunnel The appropriately sized standard cannulated reamer is used to create the tibial tunnel. The curved PCL closed curette is positioned to cup the tip of the guide wire. The arthroscope, positioned in the posterior medial portal, visualizes the guide wire being cupped, which protects the neurovascular structures (Figure 6). The surgeon’s finger through the extra capsular extraarticular posteromedial incision is monitoring the position of the guide wire. When the drill is engaged in bone, the guide wire is reversed, blunt end pointing posterior, for additional patient safety. The drill is advanced until it comes to the posterior cortex of the tibia. The chuck is disengaged from the drill, and completion of the tibial tunnel is performed by hand (Figure 7). This gives an additional margin of safety for completion of the tibial tunnel. The tunnel edges are then chamfered and rasped with the Fanelli™ PCL/ACL system rasp (Figure 8). Figure 8 Figure 10 Figure 9 Drilling the Femoral Tunnel Outside In: Single and Double Bundle PCL Reconstruction The Fanelli™ PCL/ACL guide is positioned to create the femoral tunnel. The arm of the guide is introduced through the inferomedial patellar portal and is positioned such that the guide wire will exit through the center of the stump of the anterior lateral bundle of the posterior cruciate ligament (Figure 9). The blunt spade-tipped guide wire (909634) is drilled through the guide, and just as it begins to emerge through the center of the stump of the PCL anterior lateral bundle, the drill guide is disengaged. The accuracy of the placement of the wire is confirmed arthroscopically with probing and visualization. Care must be taken to ensure the patellofemoral joint has not been violated by arthroscopically examining the patellofemoral joint prior to drilling. The appropriately sized standard cannulated reamer is used to create the femoral tunnel. A curette is used to cap the tip of the guide wire so there is no inadvertent advancement of the guide wire, which may damage the anterior cruciate ligament or articular surface. As the reamer is about to penetrate interiorly, the reamer is disengaged from the drill and the final reaming is completed by hand (Figure 10). This adds an additional margin of safety. The reaming debris is evacuated with a synovial shaver to minimize fat pad inflammatory response with subsequent risk of arthrofibrosis. The tunnel edges are chamfered and rasped. Surgical Technique Figure 12 Figure 11 Drilling the Femoral Tunnel Outside In: Single and Double Bundle PCL Reconstruction (continued) When the double bundle PCL reconstruction is performed, the Fanelli™ PCL/ACL guide is positioned to create the second femoral tunnel. The arm of the guide is introduced through the inferior medial patellar portal, and is positioned such that the guide wire will exit through the center of the stump of the posterior medial bundle of the posterior cruciate ligament (Figure 11). The blunt spade-tipped guide wire (909634) is drilled through the guide, and just as it begins to emerge through the center of the stump of the PCL posterior medial bundle, the drill guide is disengaged. The accuracy of the placement of the wire is confirmed arthroscopically with probing and visualization. Care must be taken to ensure that there will be an adequate bone bridge (approximately 5mm) between the two femoral tunnels prior to drilling. This is accomplished using the calibrated probe, and direct arthroscopic visualization. The appropriately sized standard cannulated reamer is used to create the posterior medial bundle femoral tunnel. A curette is used to cap the tip of the guide wire so there is no inadvertent advancement of the guide wire, which may damage the anterior cruciate ligament, or articular surface. As the reamer is about to penetrate interiorly, the reamer is disengaged from the drill and the final reaming is completed by hand (Figure 12). This adds an additional margin of safety. The reaming debris is evacuated with a synovial shaver to minimize fat pad inflammatory response with subsequent risk of arthrofibrosis. The tunnel edges are chamfered and rasped. Figure 15 Figure 13 Figure 14 Figure 16 Drilling the Femoral Tunnel Inside Out: Single and Double Bundle PCL Reconstruction The PCL single bundle or double bundle femoral tunnels can be made from inside out using the Fanelli™ Double Bundle Aimers. The appropriately sized double bundle aimer is inserted through a low anterior lateral patellar arthroscopic portal. The double bundle aimer is positioned directly on the footprint of the femoral anterior lateral bundle PCL insertion site (Figure 13). The appropriately sized guide wire is drilled through the aimer, through the bone, and out a small skin incision. Care is taken to insure there is no compromise of the articular surface. The double bundle aimer is removed, and an acorn reamer is used to endoscopically drill from inside out the anterior lateral bundle PCL femoral tunnel (Figure 14). The tunnel edges are chamfered and rasped. The reaming debris is evacuated with a synovial shaver to minimize fat pad inflammatory response with subsequent risk of arthrofibrosis. When the surgeon chooses to perform a double bundle double femoral tunnel PCL reconstruction, the same process is repeated for the posterior medial bundle of the PCL (Figures 15 and 16). Care must be taken to ensure that there will be an adequate bone bridge (approximately 5mm) between the two femoral tunnels prior to drilling. This is accomplished using the calibrated probe, and direct arthroscopic visualization. Surgical Technique Figure 17 Figure 20 Figure 18 Tunnel Preparation, Graft Passage, and PCL Femoral Fixation PCL Graft Tensioning and Tibial Fixation A Fanelli™ Magellan suture retriever (909808) is introduced through the tibial tunnel into the joint (Figure 17), and may be retrieved through the femoral tunnel (Figure 18). The traction sutures of the graft material are attached to the loop of the Magellan suture retriever, and the graft is pulled into position. The graft material is secured on the femoral side using the Arthrotek® Bio-Core™ Interference Screw for primary aperture opening fixation, and an Arthrotek® Poly Suture Button for back up fixation. Tension is placed on the PCL graft distally using the Arthrotek® Graft Tensioning Boot, and the tension is set to restore the anatomic tibial step off. The knee is cycled through a full range of motion 25 times to allow pre-tensioning and settling of the graft. In double bundle PCL reconstructions, each bundle is individually tensioned. The process is repeated until there is no further change in the torque setting on the graft tensioner and the anatomic tibial Figure 19 step off is restored. The knee is placed in 70˚ of flexion, and fixation is achieved on the tibial side of the PCL graft with an Arthrotek® Bio-Core™ Interference Screw, and back up fixation with a bicortical screw and spiked ligament washer (Figure 20). Figure 21 ACL Reconstruction With the knee in approximately 70˚– 90˚ of flexion, the ACL tunnels are created using the Fanelli™ PCL/ACL guide. The arm of the Fanelli™ PCL/ACL guide enters the knee joint through the inferior medial patellar portal (Figure 21). The bullet of the drill guide contacts the anterior medial proximal tibia externally at a point approximately 1 cm proximal to the tibial tubercle midway between the posterior medial border of the tibia, and the tibial crest anteriorly. The guide wire is drilled through the guide to emerge through the center of the stump of the ACL tibial footprint. A standard cannulated reamer is used to create the tibial tunnel (Figure 22). Reaming debris is evacuated, and the tunnel edges are chamfered and rasped. Figure 22 Surgical Technique Figure 23 Figure 24 ACL Reconstruction (continued) With the knee in approximately 90˚ of flexion, an over the top Femoral Aimer is introduced through the tibial tunnel, and used to position a guide wire on the medial wall of the lateral femoral condyle (Figure 23). The femoral tunnel is created to approximate the ACL anatomic insertion site, and the off set of the size specific Femoral Aimer will leave a 1–2mm posterior cortical wall so interference fixation can be used (Figure 24). The ACL graft is positioned, and fixation achieved on the femoral side using an Arthrotek® Bio-Core™ Interference Screw, and back up fixation with an Arthrotek® Poly Suture Button. The ACL graft is tensioned on the tibial side using the Arthrotek® Graft Tensioning Boot (Figure 25). Traction is placed on the ACL graft sutures, and tension is set. The knee is then cycled through 25 full flexion and extension cycles to allow settling of the graft. The process is repeated until there is no further change in the torque setting on the graft tensioner. The knee is placed in 70˚ of flexion, and fixation is achieved on the tibial side of the ACL graft with an Arthrotek® Bio-Core™ Interference Screw, and back up fixation with an Arthrotek® Poly Suture Button. The final ACL and PCL tunnel positions are demonstrated in Figures 26 and 27. Figure 26 Figure 25 Figure 27 Surgical Technique Figure 28 Figure 29 Lateral Posterolateral Reconstruction One surgical technique for posterolateral reconstruction is the free graft figure of eight technique utilizing semitendinosus autograft or allograft, Achilles tendon allograft, or other soft tissue allograft material (Figure 28). This procedure requires an intact proximal tibiofibular joint. This technique combined with capsular repair and/or posterolateral capsular shift procedures, mimics the function of the popliteofibular ligament and lateral collateral ligament, tightens the posterolateral capsule, and provides a post of strong allograft tissue to reinforce the posterolateral corner. When there is a disrupted proximal tibiofibular joint, or hyperextension external rotation recurvatum deformity, a twotailed (fibular head, proximal tibia) posterior lateral reconstruction may be required (Figure 29). Posterolateral reconstruction with the free graft figure of eight technique utilizes semitendinosus autograft or allograft, Achilles tendon allograft, or other soft tissue allograft material (Figure 28). A curvilinear incision is made in the lateral aspect of the knee extending from the lateral femoral epicondyle to the interval between Gerdy’s tubercle and the fibular head. The peroneal nerve is dissected free, and protected throughout the procedure. The fibular head is exposed and a tunnel is created in an anterior to posterior direction at the area of maximal fibular diameter. The tunnel is created by passing a guide pin followed by a cannulated drill usually 7mm in diameter. The free tendon graft is passed through the fibular head drill hole. An incision is then made in the iliotibial band in line with the fibers directly overlying the lateral femoral epicondyle. The graft material is passed medial to the iliotibial band, and the limbs of the graft are crossed to form a figure of eight. A drill hole is made approximately 1cm anterior to the fibular collateral ligament and popliteus tendon femoral insertion. A longitudinal incision is made in the lateral capsule just posterior to the fibular collateral ligament. The graft material is passed medial to the iliotibial band and secured to the lateral femoral epicondylar region with a screw and spiked ligament washer at the above mentioned point. The posterolateral capsule that had been previously incised is then shifted and sewn into the strut of figure of eight graft tissue material to eliminate posterolateral capsular redundancy. The anterior and posterior limbs of the figure of eight graft material are sewn to each other to reinforce and tighten the construct. The final graft tensioning position is approximately 30˚– 40˚ of knee flexion. The iliotibial band incision is closed. Surgical Technique Figure 30 Figure 31 Medial Posteromedial Reconstruction Posteromedial and medial reconstructions are performed through a medial incision. Care is taken to maintain adequate skin bridges between incisions, and to protect the neurovascular structures. The superficial medial collateral ligament is exposed, and a longitudinal incision is made just posterior to the posterior border of the superficial MCL (Figure 30). Care is taken to protect the medial meniscus during the capsular incision. The interval between the posteromedial capsule and medial meniscus is developed. The posteromedial capsule is shifted anterosuperiorly. The medial meniscus is repaired to the new capsular position, and the shifted capsule is sewn into the medial collateral ligament. When superficial MCL reconstruction is indicated, this is performed using allograft or autograft tissue (Figure 31). This graft material is attached at the anatomic insertion sites of the superficial medial collateral ligament on the femur and tibia using a screw and spiked ligament washer, or suture anchors. The posteromedial capsular advancement is performed, and sewn into the newly reconstructed MCL. The final graft tensioning position is approximately 30˚– 40˚ of knee flexion. Overview of Graft Tensioning and Fixation The PCL is reconstructed first followed by the ACL followed by the posterolateral complex, and medial ligament complex. Tension is placed on the PCL graft distally using the Arthrotek® Graft Tensioning Boot. This restores the anatomic tibial step off. The knee is cycled through a full range of motion 25 times to allow pretensioning and settling of the graft. The knee is placed in 70˚ of flexion, and fixation is achieved on the tibial side of the PCL graft with an Arthrotek® Bio-Core™ Interference Screw, and screw and spiked ligament washer. The Arthrotek® Graft Tensioning Boot is applied to the ACL graft. The knee is placed in 70˚ of flexion, and final fixation is achieved of the ACL graft with a Arthrotek® Bio-Core™ Interference Screw, and Arthrotek® Poly Suture Button back-up fixation on the femoral and tibial sides. Tensioning the ACL graft at 70˚ of knee flexion enabled us to maintain the neutral position of the knee by monitoring the tibial step off at the time of final graft fixation. The knee is placed in 30˚ of flexion, slight valgus force applied to the knee, and final tensioning and fixation of the posterolateral corner is achieved. The MCL reconstruction is tensioned with the knee in 30˚ of flexion. Full range of motion is confirmed on the operating table to assure the knee is not “captured” by the reconstruction. Additional Technical Ideas The posteromedial safety incision protects the neurovascular structures and confirms accurate tibial tunnel placement. It is important to be aware of the two tibial tunnel directions, and to have an adequate bone bridge between the PCL and ACL tibial tunnels. This will reduce the possibility of fracture. We have found it useful to use primary and back-up fixation. Primary fixation is with Arthrotek® Bio-Core™ Interference Screws, and back-up fixation is performed with a screw and spiked ligament washer, an Arthrotek® Poly Suture Button. Secure fixation is critical to the success of this surgical procedure. Restoration of the normal tibial step-off at 70˚ of flexion has provided the most reproducible method of establishing the neutral point of the tibiafemoral relationship in our experience. Full range of motion is confirmed on the operating table to assure the knee is not “captured” by the reconstruction. The Fanelli Sports Injury Clinic results for our PCL and multiple ligament knee reconstructions are detailed in the references listed in this technique manual. The reader is referred to these resources. References PCL and Multiple Knee Ligament Injury Text Books by Gregory C. Fanelli, M.D. Posterior Cruciate Ligament Injuries: A Practical Guide To Management. Editor: Gregory C. Fanelli, M.D., Springer-Verlag, New York, 2001. The Multiple Ligament Injured Knee. A Practical Guide to Management. Editor: Gregory C. Fanelli, M.D., Springer-Verlag, New York, 2004. PCL and Multiple Knee Ligament Injury Related Peer Reviewed Articles by Gregory C. Fanelli, M.D. Gregory C. Fanelli, M.D., “Posterior Cruciate Ligament Injuries In Trauma Patients.” Arthroscopy 9(3) pp. 291–294, 1993. Gregory C. Fanelli, M.D., Bradley Giannotti, M.D., Craig Edson, P.T.: “ Current Concepts Review. The Posterior Cruciate Ligament: Arthroscopic Evaluation And Treatment.” Arthroscopy Vol. 10, No. 6. pp. 673–688, December, 1994. Gregory C. Fanelli, M.D., Craig J. Edson, P.T./A.T.C.: “Posterior Cruciate Ligament Injuries In Trauma Patients: Part II.” Arthroscopy Vol. 11, No. 5. pp. 526–529, 1995. Gregory C. Fanelli, M.D., Bradley Giannotti, M.D., Craig J. Edson, M.S., P.T., A.T.C.: Arthroscopically Assisted Combined ACL/PCL Reconstruction. Arthroscopy, Vol. 12, No.1., pp. 5–14, 1996. Gregory C. Fanelli, M.D., Bradley Giannotti, M.D., Craig J. Edson, M.S., P.T., A.T.C.: “Arthroscopically Assisted PCL/Posterior Lateral Complex Reconstruction.” Arthroscopy, Vol. 12, No. 5, 1996. Raymond M. Bleday, M.D., Gregory C. Fanelli, M.D., Bradley F. Giannotti, M.D., Craig J. Edson, M.H.S., P.T., A.T.C., Thomas A Barrett, M.D.: “Instrumented Measurement of the Posterolateral Corner.” Arthroscopy, Vol. 14, No. 5: 489–494, 1998. Gregory C. Fanelli, M.D., Daniel D. Feldmann, M.D., “The Dislocated/Multiple Ligament Injured Knee.” Operative Techniques In Orthopaedics, 9(4):1–12, 1999. Gregory C. Fanelli, M.D., Daniel D Feldmann, M.D., “Management of Combined Anterior Cruciate Ligament/Posterior Cruciate Ligament/Posterolateral Complex Injuries of the Knee.” Operative Techniques In Sports Medicine, 7(3):143–149, 1999. Gregory C. Fanelli, M.D.: “Combined Anterior and Posterior Cruciate Ligament Injuries: The Multiple Ligament Injured Knee.” Sports Medicine And Arthroscopy Review, 7(4):289–295, 1999. Gregory C. Fanelli, M.D., Timothy J. Monahan, M.D.: “Complications of Posterior Cruciate Ligament Reconstruction. Sports Medicine And Arthroscopy Review, 7(4):296–302, 1999. Gregory C. Fanelli, M.D.: “Treatment of Combined Anterior Cruciate Ligament-Posterior Cruciate Ligament-Lateral Side Injuries of the Knee.” Clinics In Sports Medicine,19(3):493–502, 2000. Gregory C. Fanelli, M.D., Craig J. Edson, M.S., P.T./A.T.C., David R. Maish, M.D.: “Management of Combined ACL/PCL injuries. Techniques In Orthopaedics,16(2):157–166, 2001. Gregory C. Fanelli, M.D., Timothy J. Monahan, M.D.: “Complications in posterior cruciate ligament and posterolateral complex surgery.” Operative Techniques In Sports Medicine. April, 9(2);96–99, 2001. Gregory C. Fanelli, M.D.: “Surgical Treatment of the Acute and Chronic ACL/PCL/Medial Side/Lateral Side Injuries of the Knee.” Sports Medicine and Arthroscopy Review, September, 9(3), 2001. Gregory C. Fanelli, M.D., Roger V. Larson, M.D.: “Practical Management of Posterolateral Instability of the Knee.” Arthroscopy, 18(2) {February, Suppl 1}:1–8, 2002. Gregory C. Fanelli, M.D., Craig J. Edson, M.S., P.T./A.T.C.: “Arthroscopically Assisted Combined ACL/PCL Reconstruction. 2–10 year Follow-up.” Arthroscopy,18(7):703-714, 2002. Gregory C. Fanelli, M.D.: “Arthroscopic Posterior Cruciate Ligament Reconstruction: Transtibial Tunnel Technique. Surgical Technique and 2–10 Year Results.” Arthroscopy, 18(9):44–49, (December Supplement 2), 2002. Gregory C. Fanelli, M.D.: “Surgical Treatment of ACL-PCL-Medial Side-Lateral Side Injuries of the Knee.” Operative Techniques in Sports Medicine, 11(4):263–274, 2003. Gregory C. Fanelli, M.D.: “Systematic Approach to the Multiple Ligament Injured Knee.” Arthroscopy; 19(30–37): (December Supplement 1), 2003. Gregory C. Fanelli, M.D., Craig J Edson, M.S., P.T./A.T.C.: “Combined Posterior Cruciate Ligament –Posterolateral Reconstruction with Achilles Tendon Allograft and Biceps Femoris Tendon Tenodesis: 2–10 year Follow-up.” Arthroscopy, 20 (4): 339–345, 2004. Gregory C. Fanelli, M.D., Daniel R. Orcutt, M.D.: “Complications in Posterior Cruciate Ligament Reconstruction.” Sports Medicine and Arthroscopy Review, 12 (3): 196–201, 2004. Bergfeld JA, Cooper DE, Fanelli GC, Harner CD: “Round Table Discussion. Reconstructing the PCL: Tips and Techniques.” Orthopaedics Today, 24 (12): 1,16–21, 2004. Gregory C. Fanelli, M.D., Daniel R. Orcutt, M.D., Craig J. Edson, M.S., P.T., A.T.C.: “Current Concepts: The Multiple Ligament Injured Knee.” Arthroscopy, 21 (4): 471–486, 2005. Gregory C. Fanelli, M.D.: “Surgical Reconstruction for Acute Posterolateral Injury of the Knee.” Journal of Knee Surgery, 18 (2):157– 162, 2005. Fanelli GC, Edson CJ, Orcutt DR, Harris JD, Zijerdi D.: “Treatment of Combined ACL-PCL-MCL-PLC Injuries of the Knee.” Journal of Knee Surgery, 18 (3):240–248, 2005. Gregory C. Fanelli, M.D.: “Surgical Treatment of Lateral Posterolateral Instability of the Knee Using Biceps Femoris Tendon Procedures.” Sports Medicine and Arthroscopy Review, February, 14(1), 2006. Fanelli GC, Harris JD: “Surgical Treatment of Acute Medial Collateral Ligament and Posteromedial Corner Injuries of the Knee. Sports Medicine and Arthroscopy Review, May, 14(2), 2006. Fanelli GC, Harris JD. : “Late MCL (Medial Collateral Ligament) Reconstruction.” Techniques In Knee Surgery, (In Press), 2006. Package Inserts Arthrotek, Inc. A Wholly Owned Subsidiary of Biomet, Inc. 56 East Bell Drive P.O. Box 587 Warsaw, Indiana 46581 USA 01-50-1058 Date: 07/04 RESORBABLE INTERFERENCE SCREW ATTENTION OPERATING SURGEON DESCRIPTION Arthrotek® Resorbable Interference Screw is a resorbable interference fixation screw. The device is made of LactoSorb®, a resorbable copolymer, which is a polyester derivative of lactic acid and glycolic acid. Polylactic/ polyglycolic acid copolymer degrades and resorbs in vivo by hydrolysis to lactic and glycolic acids that are then metabolized by the body. INDICATIONS Indications for use: Indications for the Resorbable Interference Screw include use in soft tissue reattachment procedures in the shoulder, wrist/hand, ankle/foot, elbow, and knee. Specific indications include the following: Shoulder: Bankart repair, SLAP lesion repair, acromio-clavicular separation, rotator cuff repair, capsule repair or capsulolabral reconstruction, biceps tenodesis, deltoid repair. Wrist/Hand: Scapholunate ligament reconstruction, ulnar/radial collateral ligament reconstruction. Ankle/Foot: Lateral stabilization, medial stabilization, Achilles tendon repair/ reconstruction, hallux valgus reconstruction, mid- and forefoot reconstruction. Elbow: Tennis elbow repair, ulnar or radial collateral ligament reconstruction, biceps tendon reconstruction. Knee: Extra-capsular repair, medial collateral ligament (MCL) repair, lateral collateral ligament (LCL) repair, posterior oblique ligament repair, joint capsule closure, iliotibial band tenodesis reconstruction, patellar ligament/tendon repair, and vastus medialis obliquus (VMO) muscle advancement. In addition to the above indications, 7.0mm, 8.0mm, 9.0mm, 10.0mm, 11.0mm, and 12.0mm screws are indicated for the following uses: 1. To provide interference fixation of patellar bone-tendon–bone grafts in anterior cruciate ligament (ACL) reconstruction. 2. To provide interference fixation during femoral and/or tibial fixation in anterior cruciate ligament reconstruction using a soft tissue graft (semitendinosus, gracilis). 3. To provide interference fixation during posterior cruciate ligament (PCL) reconstruction. CONTRAINDICATIONS 1. Active infection. 2. Patients with mental or neurologic conditions who are unwilling or incapable of following postoperative care instructions. 3. Patient conditions including: blood supply limitations, insufficient quantity or quality of bone for attachment or latent infections. 4. Pathologic soft tissue conditions, which would prevent secure fixations. WARNINGS Arthrotek internal fixation devices provide the surgeon with a means to aid in the management of soft tissue to bone reattachment procedures. While these devices are generally successful in attaining these goals, they cannot be expected to replace normal healthy soft tissue or withstand the stress placed upon the device by full or partial weight bearing or load bearing, particularly in the presence of incomplete healing. Therefore, it is important that immobilization (use of external support, sling, etc.) of the treatment site be maintained until healing has occurred. Surgical implants are subject to repeated stresses in use, which can result in fracture or damage to the implant. Factors such as the patient’s activity level and adherence to weight bearing or load bearing instructions have an affect on the service life of the implant. The surgeon must be thoroughly knowledgeable not only in the medical and surgical aspects of the implant, but also must be aware of the mechanical and polymeric aspects of the surgical implants. 1. Correct selection of the implant is extremely important. The potential for success in soft tissue to bone fixation is increased by the selection of the proper type of implant. While proper selection can help minimize risks, the device is not designed to withstand the unsupported stress of full weight bearing, load bearing or excessive activity. 2. The implants can loosen or be damaged when subjected to increased loading associated with inadequate healing. If healing is delayed, or does not occur, the implant or the procedure may fail. Loads produced by weight bearing and activity levels may dictate the longevity of the implant. 3. Inadequate fixation at the time of surgery can increase the risk of loosening and migration of the device or tissue supported by the device. Sufficient bone quantity and quality are important to adequate fixation and success of the procedure. Bone quality must be assessed at the time of surgery. Adequate fixation in diseased bone may be more difficult. Patients with poor quality bone, such as osteoporotic bone, are at greater risk of device loosening and procedure failure. 4. 5. 6. 7. 8. 9. 10. 11. Care is to be taken to assure adequate soft tissue fixation at the time of surgery. Failure to achieve adequate fixation through improper positioning or placement of the device can contribute to a subsequent undesirable result. The use of appropriate immobilization and postoperative management is indicated as part of the treatment until healing has occurred. Correct handling of implants is extremely important. Do not modify implants. Do not notch or bend implants. Notches or scratches put in the implant during the course of surgery may contribute to breakage. Intraoperative fracture of screws can occur if excessive force (torque) is applied while seating bone screws. Do not heat LactoSorb® Interference Screws by any means prior to implantation. DO NOT USE if there is loss of sterility of the device. Discard and DO NOT USE opened or damaged devices, and use only devices that are packaged in unopened and undamaged containers. DO NOT USE where a permanent implant is indicated. DO NOT USE with other resorbable implant materials. Adequately instruct the patient. Postoperative care is important. The patient’s ability and willingness to follow instructions is one of the most important aspects of successful soft tissue management. Patients affected with senility, mental illness, alcoholism, and drug abuse may be at a higher risk of device or procedure failure. These patients may ignore instructions and activity restrictions. The patient is to be instructed in the use of external supports that are intended to immobilize the repair site and limit weight bearing or load bearing. The patient is to be made fully aware and warned that the device does not replace normal healthy tissue, and that the device can break, bend or be damaged as a result of stress, activity, load bearing, or weight bearing. The patient is to be made aware and warned of general surgical risks, possible adverse effects, and to follow the instructions of the treating physician. The patient is to be advised of the need for regular postoperative follow-up examination as long as the device remains implanted. PRECAUTIONS Instruments are available to aid in the accurate implantation of internal fixation devices. Intraoperative fracture or breaking of instruments has been reported. Surgical instruments are subject to wear with normal usage. Instruments, which have experienced extensive use or excessive force, are susceptible to fracture. Surgical instruments should only be used for their intended purpose. Arthrotek recommends that all instruments be regularly inspected for wear and disfigurement. POSSIBLE ADVERSE EFFECTS 1. Infection can lead to failure of the procedure. 2. Neurovascular injuries can occur due to surgical trauma. 3. Bending, fracture, loosening, rubbing, and migration of the implant may occur as a result of excessive activity, trauma, or load bearing. 4. Implantation of foreign materials can result in an inflammatory response or allergic reaction. 5. Inadequate healing which may lead to breakage of the implant or failure of the graft material. 6. Pain, discomfort, or abnormal sensation due to the presence of the device. 7. Necrosis of the bone or tissue. STERILITY Arthrotek resorbable implants are sterilized by exposure to Ethylene Oxide (ETO) Gas. Do not resterilize. Do not use past expiration date. STORE AT OR BELOW ROOM TEMPERATURE. DO NOT EXPOSE PRODUCT TO TEMPERATURES GREATER THAN 120°F OR 49°C. Caution: Federal Law (USA) restricts this device to sale, distribution, or use by or on the order of a physician. Comments regarding this device can be directed to Attn: Regulatory Dept., Biomet, Inc., P.O. Box 587, Warsaw, IN 46581 USA, Fax: 574-372-1683. Manufacturer: Biomet Manufacturing Corp. Airport Industrial Park P.O. Box 587 Warsaw, IN 46581-0587 Authorized Representative: Biomet U.K., Ltd Waterton Industrial Estates Bridgend, South Wales CF31 3XA, U.K. СЄ0086 The information contained in this package insert was current on the date this brochure was printed. However, the package insert may have been revised after that date. To obtain a current package insert, please use the contact information provided herein. Arthrotek, Inc. 01-50-1018 A Wholly Owned Subsidiary of Biomet, Inc. Date: 09/05 P.O. Box 587 56 East Bell Drive Warsaw, Indiana 46581 USA Arthrotek® Internal Fixation Devices Attention Operating Surgeon DESCRIPTION Arthrotek manufactures a variety of internal fixation devices intended to aid in arthroscopic and orthopedic reconstructive procedures requiring soft tissue fixation, due to injury or degenerative disease. Implants used for this application include: screws, washers, anchors, pins, and suture. Specialty implants are available for specialized treatments. Materials: 316 LVM Stainless Steel Titanium Alloy Ultra-High Molecular Weight Polyethylene (UHMWPE) Polyester INDICATIONS The Metal Screw Anchor and the Harpoon® Suture Anchor are indicated for use in soft tissue reattachment procedures in the shoulder, wrist, elbow, and knee. Specific indications as follows: Shoulder Indications – Bankart repair, SLAP lesion repair, acromio-clavicular separation, rotator cuff repair, capsule repair or capsulolabral reconstruction, biceps tenodesis, deltoid repair. Wrist/Hand Indications – Scapholunate ligament reconstruction, ulnar/radial collateral ligament reconstruction. Ankle/Foot Indications – Lateral stabilization, medial stabilization, Achilles tendon repair/ reconstruction, hallux valgus reconstruction, mid- and forefoot reconstruction. Elbow Indications – Ulnar or radial collateral ligament reconstruction, biceps tendon reconstruction. Knee Indications – Medial collateral ligament repair, lateral collateral ligament repair, posterior oblique ligament repair, joint capsule closure, iliotibial band tenodesis, and patellar ligament/tendon repair. Bone Mulch® Screws are intended for use in fixation of semitendinous and/or gracile tendon grafts in ACL reconstruction, only. Interference Screws and Set Screws are intended for use in fixation of patellar bone-tendonbone grafts in ACL reconstruction. Screw and Washers are indicated for soft tissue fixation to bone, and bone to bone fixation in orthopedic procedures specifically during Ligament reconstruction. Toggle anchors (ie. toggle buttons and EZLoc™) are indicated for use for fixation of tendons and ligaments during orthopedic reconstruction procedures such as Anterior Cruciate Ligament (ACL) Reconstruction. Patient selection factors to be considered include: 1) need for soft tissue to bone fixation, 2) ability and willingness of the patient to follow postoperative care instructions until healing is complete, and 3) a good nutritional state of the patient. CONTRAINDICATIONS 1. Infection. 2. Patient conditions including blood supply limitations, and insufficient quantity or quality of bone or soft tissue. 3. Patients with mental or neurologic conditions who are unwilling or incapable of following postoperative care instructions. 4. Foreign body sensitivity. Where material sensitivity is suspected, testing is to be completed prior to implantation of the device. WARNINGS Arthrotek® internal fixation devices provide the surgeon with a means to aid in the management of soft tissue to bone reattachment procedures. While these devices are generally successful in attaining these goals, they cannot be expected to replace normal healthy bone or withstand the stress placed upon the device by full or partial weight bearing or load bearing, particularly in the presence of nonunion, delayed union, or incomplete healing. Therefore, it is important that immobilization (use of external support, walking aids, braces, etc.) of the treatment site be maintained until healing has occurred. Surgical implants are subject to repeated stresses in use, which can result in fracture or damage to the implant. Factors such as the patient’s weight, activity level, and adherence to weight bearing or load bearing instructions have an effect on the service life of the implant. The surgeon must be thoroughly knowledgeable not only in the medical and surgical aspects of the implant, but also must be aware of the mechanical and metallurgical aspects of the surgical implants. 3. Inadequate fixation at the time of surgery can increase the risk of loosening and migration of the device or tissue supported by the device. Sufficient bone quantity and quality are important to adequate fixation and success of the procedure. Bone quality must be assessed at the time of surgery. Adequate fixation in diseased bone may be more difficult. Patients with poor quality bone, such as osteoporotic bone, are at greater risk of device loosening and procedure failure. 4. Implant materials are subject to corrosion. Implanting metals and alloys subjects them to constant changing environments of salts, acids, and alkalis that can cause corrosion. Putting dissimilar metals and alloys in contact with each other can accelerate the corrosion process that may enhance fracture of implants. Every effort should be made to use compatible metals and alloys when marrying them to a common goal, i.e., screws and plates. 5. Correct handling of implants is extremely important. Do not modify implants. Do not notch or bend implants. Notches or scratches put in the implant during the course of surgery may contribute to breakage. Intraoperative fracture of screws can occur if excessive force (torque) is applied while seating bone screws. 6. Do not use excessive force when inserting suture anchors. Excessive force (long hard hammer blows) may cause fracture or bending of the device. When encountering hard cortical bone, predrill with a 3/32 or 1/8 inch drill prior to inserting suture anchors. 7. Adequately instruct the patient. Postoperative care is important. The patient’s ability and willingness to follow instructions is one of the most important aspects of successful fracture management. Patients effected with senility, mental illness, alcoholism, and drug abuse may be at a higher risk of device or procedure failure. These patients may ignore instructions and activity restrictions. The patient is to be instructed in the use of external supports, walking aids, and braces that are intended to immobilize the fracture site and limit weight bearing or load bearing. The patient is to be made fully aware and warned that the device does not replace normal healthy bone, and that the device can break, bend or be damaged as a result of stress, activity, load bearing, or weight bearing. The patient is to be made aware and warned of general surgical risks, possible adverse effects, and to follow the instructions of the treating physician. The patient is to be advised of the need for regular postoperative follow-up examination as long as the device remains implanted. PRECAUTIONS Do not reuse implants. While an implant may appear undamaged, previous stress may have created imperfections that would reduce the service life of the implant. Do not treat with implants that have been even momentarily placed in a different patient. Instruments are available to aid in the accurate implantation of internal fixation devices. Intraoperative fracture or breaking of instruments has been reported. Surgical instruments are subject to wear with normal usage. Instruments, which have experienced extensive use or excessive force, are susceptible to fracture. Surgical instruments should only be used for their intended purpose. Arthrotek recommends that all instruments be regularly inspected for wear and disfigurement. If device contains MaxBraid™ suture, refer to manufacturer package insert for further information. POSSIBLE ADVERSE EFFECTS 1. Nonunion or delayed union, which may lead to breakage of the implant. 2. Bending or fracture of the implant. 3. Loosening or migration of the implant. 4. Metal sensitivity, or allergic reaction to a foreign body. 5. Pain, discomfort, or abnormal sensation due to the presence of the device. 6. Nerve damage due to surgical trauma. 7. Necrosis of bone or tissue. 8. Inadequate healing. 9. Intraoperative or postoperative bone fracture and/or postoperative pain. STERILITY Arthrotek® internal fixation implants are typically supplied sterile and are sterilized by exposure to a minimum dose of 25kGy of gamma radiation or by Ethylene Oxide Gas (ETO) if device contains MaxBraid™ PE suture. If supplied sterile, do not resterilize the implant. If not supplied sterile, metallic internal fixation devices must be sterilized prior to surgical use. Do not sterilize UHMWPE implants using steam autoclaving methods. Do not use implants after expiration date. Pre-VacuumSteam (HI-VAC) -- wrapped or unwrapped Temperature 270°-275° F (132°-135°C) Exposure Time 5 Minutes Drying Time 8 Minutes Since Arthrotek is not familiar with individual hospital handling methods, cleaning methods and bioburden, Arthrotek cannot assume responsibility for sterility even though the guideline is followed. Caution: Federal law (USA) restricts this device to sale by or on the order of a physician. 1. Correct selection of the implant is extremely important. The potential for success in soft tissue to bone fixation is increased by the selection of the proper type of implant. While proper selection can help minimize risks, neither the device nor grafts, when used are designed to withstand the unsupported stress of full weight bearing, load bearing or excessive activity. 2. The implants can loosen or be damaged and the graft can fail when subjected to increased loading associated with nonunion or delayed union. If healing is delayed, or does not occur, the implant or the procedure may fail. Loads produced by weight bearing, and activity levels may dictate the longevity of the implant. Authorized Representative: Biomet U.K., Ltd. Waterton Industrial Estates, Bridgend, South Wales CF31 3XA, U. K. СЄ0086 The information contained in this package insert was current on the date this brochure was printed. However, the package insert may have been revised after that date. To obtain a current package insert, please use the contact information provided herein. Ordering Information Bio-Core™ Interference Screw 905635 905636 905637 905638 905639 905640 905641 905642 905643 905644 905645 905646 7 x 20mm 7 x 25mm 7 x 30mm 8 x 20mm 8 x 25mm 8 x 30mm 9 x 20mm 9 x 25mm 9 x 30mm 10 x 20mm 10 x 25mm 10 x 30mm Poly Suture Button 904215 904219 15mm 19mm Resorbable No-Profile Screw 905401 905402 905403 905404 905405 905406 905407 6.5 x 25mm 6.5 x 30mm 6.5 x 35mm 6.5 x 40mm 6.5 x 45mm 6.5 x 50mm 6.5 x 55mm No-Profile Cancellous Screw 904530 904535 904540 904545 904550 904555 904560 904565 904570 6.5 x 30mm 6.5 x 35mm 6.5 x 40mm 6.5 x 45mm 6.5 x 50mm 6.5 x 55mm 6.5 x 60mm 6.5 x 65mm 6.5 x 70mm No-Profile Cortical Screw (Self Tapping) 904630 904632 904634 904636 904638 904640 904642 904644 904646 904648 904650 904652 904654 904656 904658 904660 6.5 x 30mm 6.5 x 32mm 6.5 x 34mm 6.5 x 36mm 6.5 x 38mm 6.5 x 40mm 6.5 x 42mm 6.5 x 44mm 6.5 x 46mm 6.5 x 48mm 6.5 x 50mm 6.5 x 52mm 6.5 x 54mm 6.5 x 56mm 6.5 x 58mm 6.5 x 60mm Resorbable No-Profile Spiked Washer 905418 No-Profile Spiked Washer 18mm 904414 904418 904420 14mm 18mm 20mm No-Profile Flat Washer 904428 18mm Fanelli™ PCL/ACL Guide 909800 Body 909804 PCL Bullet Fanelli™ Magellan 909808 Calibrated Probe 909799 Tunnel Awl 909798 Curved Rasp 909791 Cupped Curette 909792 Cupped Curette (Over the Back) 909793 Open Curette 909794 Open Curette (Over the Back) 909795 PCL Capsule Rasp 909790 Hook Knife 909796 Graft Tensioning Boot 909525 Fanelli™ Double Bundle Aimer 909747 7mm 909748 8mm 909749 9mm 909750 10mm 909751 11mm 909752 12mm Femoral Aimer 909627 7mm 909628 8mm 909629 9mm 909630 10mm 909631 11mm 909632 12mm Femoral Aimer Handle 909623 Femoral Aimer Replacement Ring Nut 909627-03 Cannulated Drill Bit 909911 7mm 909913 8mm 909915 9mm 909917 10mm 909919 11mm 909921 12mm Graft Sizing Block 906820 Cannulated End Cutting Reamer 909617 7mm 909618 8mm 909619 9mm 909620 10mm 909621 11mm 909622 12mm P.O. Box 587, Warsaw, IN 46581-0587 • 800.348.9500 ext. 1501 • ©2006 Arthrotek, Inc. All Rights Reserved web site: www.arthrotek.com • eMail: arthrotek@arthrotek.com Form No. Y-BMT-979/071506/K I N V E N T I N G T H E F U T U R E O F A R T H R O S C O P Y