6.8: Carpal Tunnel Syndrome
Transcription
6.8: Carpal Tunnel Syndrome
Carpal Tunnel Syndrome 1 6.8: Carpal Tunnel Syndrome Carpal tunnel syndrome is a series of clinical symptoms caused by various of injuries which lead to increased pressure on the median nerve from the forearm to the wrist and flexor digitorum through the tunnel. Clinically this is mainly characterized by numbness of “three and a half fingers”, paresthesia of sensation, carpal atony. “Carpal Tunnel Syndrome” “Frequent occurrence among middleaged or old people or even office workers, especially among females” 2 3 6.8: Carpal Tunnel Syndrome 【Anatomy Structure】 The median nerve -controls sensations to the palm side of the thumb and fingers (although not the little finger), as well as impulses to some small muscles in the hand that allow the fingers and thumb to move. The carpal tunnel -a narrow, rigid passageway of ligament and bones at the base of the hand - houses the median nerve and tendons. 4 5 6 6.8.1: Carpal Tunnel Syndrome -Pathogenesis Wrist strain, direct trauma, wrist bone fractures, dislocation, malunion, hyperosteogeny, ligament hypertrophy, ganglion and adipoma Compression at the median nerve Numbness / Paresthesia Carpal Tunnel Syndrome 7 6.8.2: Carpal Tunnel Syndrome -Clinical manifestations The onset of this disease is slow. Is usually marked by an acute or chronic injury. Early stage: 1) are soreness and distention of the wrist. Later stage: 1) Symptoms of median nerve pressure with signs of paresthesia, numbness and stabbing pain, electronic shock in the thumb, index, middle and ring finger (three and a half fingers at the radial side), even radiate to elbows and shoulders; 2) Symptoms worsened in 40 seconds when bending the wrist in 90 degree angle; 3) Symptoms are severe at night and in the morning; 8 6.8.2: Carpal Tunnel Syndrome -Clinical manifestations 4) Aggravated when temperature of hand increases and hand become tired and droop; alleviated after moving , swinging and lifting of hands. 5) Fingers on the affected side feel distending, stiff and cold. Advanced stage: 1) Thenar atrophy, numbness, reduced muscular tension, loss of impairment of sensation in the fingers, dysfunction of palm flexion 2) X-ray shows no abnormal changes, ruling out bone lesion 9 6.8.3: Carpal Tunnel Syndrome -Diagnosis 【Essential for Diagnosis】 1. Carpal pain accompanied by pain and numbness of three and a half finger at the radial side. 2. Anomalous skin sensation in the distribution area of median nerve. 3. Stabbing and electronic shocks numbness is felt when carpal tunnel is knocked. 4. The test of flexing wrist is positive. 10 6.8.4: Carpal Tunnel Syndrome -Treatment 【Therapeutic principles】 1. Activating blood to eliminate swelling 活血消肿 2. Soothing tendons and unblocking collaterals 舒筋通络 11 6.8.4: Carpal Tunnel Syndrome -Treatment 【Locations of Acupoints】 Wrist •Daling 大陵 (PC7) •Neiguan 内关 (PC6) •Quze 曲泽(PC3) •Yuji 鱼际(LU10) 12 Daling (PC7) Neiguan (PC6) 13 Quze (PC3) Yuji (LU10) 14 Pericardium meridian PC Quze (PC3) Neiguan (PC6) Daling (PC7) 15 6.8.4: Carpal Tunnel Syndrome -Treatment 【Basic Manipulations】 1. Pressing and kneading Daling, Neiguan, Quze, Yuji and carpal tunnel. 1 minute for each Acupoint till soreness and distention are felt. 2. Pressing and kneading carpal tunnel with the thumb, vertically plucking towards the flexor digitorum, combined with shaking and pulling manipulations alternatively for about 5 minutes. 3. Grasping, pressing, kneading from the forearm flexor muscle to the wrist with the carpal as to relax the muscles of forearm for about 5 minutes. 4. The affected elbow is bent into 45 degree angle. The doctor fixes the wrist of the affected limbs with one hand, and then pushes and kneads from the wrist to antebrachium flexor with the other to push the extravasation to the forearm muscles so as to relieve pressure inside the tunnel. 16 6.8.4: Carpal Tunnel Syndrome -Treatment 5. The patient is in a sitting position with his dorsum of hand turned upwards. The doctor holds the palm side of the patient’s hand with four fingers of both hands, puts his thumbs on the back of the wrist, pressing the wrist with the thumbs, pulling the wrist and wagging it at the same time. While pressing with the thumb, the doctor extends the wrist back to the maximum range, immediately bending the wrist and wagging repeatedly several times for about 5 minutes. 6. Then rubbing the wrist joint to finish the treatment. 17 6.8.4: Carpal Tunnel Syndrome -Treatment 【Cautions】 1. After each treatment, fomentation may be applied to the local areas, twice a day. 2. Avoid over using the wrist during treatment period. 3. Keep the wrist warm. Wear wrist guard if necessary. 18 Sprain of wrist joint 19 6.9: Sprain of wrist joint Sprain of wrist joint is caused when the wrist joint is impacted by direct or indirect external force, or rotates beyond the endurance of the wrist ligament and thus injures the ligament, tendon and articular capsule around the wrist. Severe incidents can cause wrist fracture. Pain and swelling around the wrist joint with limited functional motion. “Sprain of Wrist joint” “commonly seen among young people who are active” 20 6.9: Sprain of wrist joint 【Names in TCM】 Injury of tendons that leads to stagnation of Qi and blood. “筋脉受损,气血凝滞” Bone dislocation and tendon displacement “骨错缝,筋出槽” 21 6.9.1: Sprain of wrist joint -Pathogenesis Wrist joint (abundant Qi with less blood) Three Yin/Yang meridians of hand Acute or chronic trauma Injury of tendons and joints (looseness and spasm of tendons, adherence or dislocation of joints) Restricted activity and pain due to stagnation of Qi and blood 22 6.9.2: Sprain of wrist joint -Clinical manifestation 1. • • • History of obvious injury: Falling down with the palm hitting on the ground; Wrist sprain while working or taking sports activities; Carrying heavy objects or over strain in long period of time. 2. Mild condition: • Wrist appear less agile, with no distinct pain. Pain only occurs in large motion. 3. Severe condition: • Pain occurs right after injury and with restricted movement, limitation in turning to a certain direction; • Swelling and subcutaneous ecchymosis in the wrist • Appears bluish, then purple and yellow or khaki 23 6.9.2: Sprain of wrist joint -Clinical manifestation 4. Evident of pain, tenderness and activity limitation in the injured area: a) Tenderness: • At the radial aspect of dorsal radial-carpal ligament -(injury of ligamentum carpi dorsal) • At the palm side of the ligamentum carpi volare -(injury of ligamentum carpi volar) • At the radial aspect of the nasopharyngeanl fossa -(injury of radial collateral ligament) • At the small head of ulnar -(injury of ulnar collateral ligament) • At the space of radioulnar joint and radial collateral aspect of wrist joint -(injury of triquetrum cartilages) 24 6.9.2: Sprain of wrist joint -Clinical manifestation b) Restricted activities: • Pain in flexing and stretching movement with the wrist and palm -(Injury of ligament carpi dorsal) • Pain in backwards stretching -(Injury of ligament carpi volar) • Pain in ulnar flexion movement -(Injury of radial para-ligament) • Pain in radial flexion -(Injury of ulnar para-ligament) • Pain in inward rotation -(Injury of triquetrum cartilage) 25 Dorsal side (Ligament carpi dorsal) Palm side (Ligament carpi volar) 26 Triquetrum cartilages Radial collateral ligament Ulnar collateral ligament 27 6.9.2: Sprain of wrist joint -Clinical manifestation 5. X-ray examination: • No evident change for a simple sprain of wrist joint. • Distinguished for evident in: -fracture of the distal end of radius and ulna; -fracture of scaphoid; -fracture or dislocation of lunate bone, avulsion fracture of the dorsum of triquetrum bone; -aseptic necrosis of scaphoid and lunate bone 28 Right palm side 29 30 6.9.3: Sprain of wrist joint -Diagnosis 【Essential for Diagnosis】 1. History of acute or chronic injury. 2. There is pain in the wrist joint and the pain is located in the injured place. 3. Arthrocele, indistinct signs in chronic injury, evident swelling, distension and subcutaneous ecchymosis in acute injury. 4. Restricted movement and function of the wrist. 5. Ruling out fracture or dislocation with X-ray examination. 31 6.9.4: Sprain of wrist joint -Treatment 【Therapeutic principles】 1. Soothing tendons and activating blood 舒筋活血 2. Removing blood stasis and unblocking collaterals 祛瘀通络 32 6.9.4: Sprain of wrist joint -Treatment 【Locations of Acupoints】 Acupoints are selected according to the injured area (dorsal side) •Waiguan 外关 (TE15) •Hegu 合谷 (LI4) •Yangxi 阳溪 (LI5) •Yanggu 阳谷 (SI5) •Yangchi 阳池 (TE4) 33 Waiguan (TE15) Hegu (LI4) 34 Yangxi (LI5) Yanggu (SI5) 35 Yangchi (TE4) Yangchi 36 Yanggu (SI5) Yangchi (TE4) Yangxi (LI5) 37 6.9.4: Sprain of wrist joint -Treatment Acupoints are selected according to the injured area (Palm side) •Taiyuan 太渊 (LU9) •Shenmen 神门 (HT7) •Daling 大陵 (PC7) •Lieque 列缺 (LU7) 38 Taiyuan (LU9) 太 渊 穴 Shenmen (HT7) 39 Daling (PC7) Lieque (LU7) 40 Taiyuan (LU9) Daling (PC7) Shenmen (HT7) 41 6.9.4: Sprain of wrist joint -Treatment 【Basic Manipulations】 Therapy can only be applied after ruling out fracture or dislocation with X-ray. Therapy should be applied 24 to 48 hours after an acute injury, if swelling and subcutaneous ecchyoma are distinct. 1. (a)Sprain on the palm side of the wrist: Daling, Shenmen and other Acupoints of the heart meridian can be used; (b)Sprained on the radial aspect of the wrist: Lieque, Taiyuan, and other Acupoints of lung meridian can be used; (c)Sprained on the dorsal side of the radial aspect of the wrist: Yangxi, Hegu and other Acupoints on the large intestine meridain can be used. Pressing and thumb kneading with proper strength until the patient feels aching. 42 6.9.4: Sprain of wrist joint -Treatment 2. The patient take a sitting position. The doctor applies pressing, kneading and plucking on the injured area. The manipulations should be done mildly and gently for 5 minutes. From distal to proximal injured area. 3. Passive movement: dorsiflexion, palmer flexion, bending and circular movement to the left and right, extending and shaking the wrist in order to relieve spasm and adhesion and improve the function of the wrist. Perform 5 minutes for such manipulations. 4. Scrubbing the injured area of the wrist for 2 minutes till warmth penetrates deep inside the muscles. 43 6.9.4: Sprain of wrist joint -Treatment 【Cautions】 1. For acute injury with subcutaneous hemorrhage, ice compress should be used first to prevent bleeding. 2. For severe injury, X-ray should be used to rule out fracture and dislocation. 3. Keeping warm and protecting the wrist with wrist guard during treatment period. 4. Reduction manipulation should be applied for suspecting of dislocation and avulsion fracture. Fixation should be continued only after 6-8 weeks of union of fracture. Tuina therapy can be considered to restore the function of the joint. 44