Facial Plastics and Rhinoplasty Assessment
Transcription
Facial Plastics and Rhinoplasty Assessment
FACIAL PLASTICS AND RHINOPLASTY ASSESSMENT Bhaskar Ram Aberdeen Royal Infirmary Dundee FRCSENT VIVA course www.frcsentvivacourse.co.uk Aesthetic Principles • Ensure Complete Excision • Consider Moh’s surgery • Replace tissue with like tissue ▫ Replace all missing components • Restore units and aesthetics • Evaluate tissue surrounding donor and recipient sites Nasal Reconstruction • What does the patient want? Expectations REMEMBER KIS • Patient Factors Health of patient, health of skin, smoker • Diagnose the nasal defect Subunits, tissue layer, internal structures • Evaluate donor materials for missing surface and tissue layers FACIAL REGIONS NASAL SUBUNITS Restore units and aesthetics • If greater than 50%, then best to excise and recon entire subunit. • Match color and texture. Replace tissue with like tissue • Cutaneous cover Full thickness skin graft Local or regional flaps Structural support Septal cartilage Auricular or rib cartilage Calvarial bone • Lining flaps ▫ Septal mucoperichondrial flaps Vestibular or turbinate mucosal flaps HOW TO RECONSTRUCT • START from the THE BASE • BUILD the SUPPORT next • COMPLETE with COVERING the defect with the skin NASAL LINING FLAPS • Bipedicled vestibular flap (Aka bucket handle flap) (must be defect <1.5cm in vertical height) ▫ Make intercartilagenous incision between upper and lower lats Elevate the flap, sufficiently to mobilize • Auricular cartilage can serve as framework to attach to. Lining Flaps • Unilateral Septal Mucopericondrial hinge flap (Can measure up to 4-4.5cm in length and 2.5 – 3 cm in Width) ▫ Sub-perichondrial dissection is completed from above downward towards the floor and from anteriorly to Posteriorly ▫ Turn flap laterally as a hinge Framework Framework • Cephalic Dorsum – cranial bone. ▫ These are secured to frontal bone with miniplates. • Caudal Dorsum – septal or auricular cartilage. • Lateral Sidewall – may be replaced with bone or cartilage. • Alar defects – cartilage (usually contralateral concha cymba). Nasal Reconstruction – CUTANEOUS DEFECTSLadder • Primary closure • Healing by secondary intention • Dermabrasion • Full thickness skin grafts (FTSG) • Composite grafts • Random Flaps • Pedicled Flaps Secondary Intention Typically for medial canthal defects • Results in contraction and distortion of nose • Poor aesthetic outcomes on most defects of nose Primary closure • Little redundant skin on nose ▫ Easier on elderly patients • Defect usually < 1cm ▫ Dorsum or sidewall • May produce alar or tip distortions (rotation of tip). Full Thickness Skin Graft • Used instead of STSG to avoid contraction • Need intact framework to support • Use like tissue • Best on younger patients with thin skin • Best for nasal sidewal unit defects Local Flaps LOCAL FLAPS Types of Flaps: Defined by direction of tissue movement • Advancement flaps: Linear movement ▫ Y-V advancement • Rotational Flaps: Radial movement • Transposition Flaps: Raised from donor sites and rotated over to defect Interpolated Flaps: Flap passed over or under bridge of skin separating site : Island flap, Paramedian forehead flap. from defect: ▫ Important to recognize vectors of pull and force ▫ Especially when pulling from structures with low tensile strength such as the eyelid. What flap to use and Where Nasal Dorsum – Cutaneous cover Glabellar Flap Forehead flap Primary closure FTSG Nasal Sidewall- Cutaneous Cover FTSG Transposition Flap Bilobed Flap Forehead Flap Nasal Tip Lobule – Cutaneous cover • Bilobe flap • Forehead flap • FTSG Tip Lobule – Bilobe Flap • Original design by Esser (1918) Total transposition of ‹100° • Ideal for defects: 1.5 - 2.0cm ▫ Best of ›5mm from margin of nostril Preferably laterally based Most common nasal local flap Double transposition flap Little distortion of alar rim Paramedian Forehead flap Based off supratrochlear Artery 1.7 – 2.2cm lateral to midline Performed on same side of majority of defect Pedicle can be as narrow as 1.2cm ▫ Allows for greater arch of Rotation ▫ Minimizes standing deformity Columella – Cutaneous cover FTSG (superficial) Composite graft (<1.5cm) Melolabial flap Forehead flap Alar rim – Cutaneous cover • Melolabial flap • Forehead flap • Composite graft Melolabial •Melolabial Interpolation Flap • Preserves alar-facial sulcus ▫ Pedicle crosses sulcus and is taken down at 3 weeks • Three types: ▫ Superiorly Based Lateral nasal wall, nasal ala Single stage ▫ Inferiorly Based Nasal sill and columella ▫ Island Pedicled flap Indicated for whole subunit alar surface replacement TEMPLE AND FOREHEAD DEFECTS CHEEK DEFECTS Take home points Mohs Surgery – Principles Reconstruction of Mohs Defects Cosmetic Principles Healing by Secondary Intent Skin Graft Primary closure Flap Reconstruction Reconstruction of specific locations FACIAL ANALYSIS OF THE RHINOPLASTY PATIENT Bhaskar Ram Consultant Otolaryngologist The standard attractive face Symmetry Proportions Angles Relationships Correction of what is askew determines the surgical plan Primary points of interest Trichion Glabella Nasion Supratip Tip Subnasale Stomion Menton Zimbler, Marc Ham, Jongwook. Aesthetic Facial Analysis, Cummings: Otolaryngology: Head and Neck Surgery, 4th ed 2010 •Trichion: Anterior hairline in the midline •Glabella: Most prominent midline point of forehead, well appreciated on lateral view •Nasion: Most posterior midline point of forehead, typically corresponds to nasofrontal suture •Rhinion: Soft-tissue correlate of osseocartilaginous junction of nasal dorsum • Supratip: Point cephalic to the tip Tip: Ideally, • Subnasale: Junction of columella and upper lip •Menton: Most inferior point on chin •Pogonion: Most anterior midline soft-tissue Nasal aesthetic subunits Zimbler, Marc Ham, Jongwook. Aesthetic Facial Analysis, Cummings: Otolaryngology: Head and Neck Surgery, 4th ed Tip Support •Major •LLC size and shape •LLC attachment to ULC •LLC attachment to caudal spine •Minor •Interdomal ligament •Soft tissue envelope •Cartilagenous dorsum membranous septum •Nasal spine Rhinoplasty consultation • First Consultation • Understand patients wants • Are they genuine, realistic • Understand what you can realistically achieve • • Will the pt be happy with the outcome • BEWARE • Intranasal substance abuse (eg, cocaine) • Psychological or psychiatric instability • SIMON (single, immature, male, overly expectant, narcissistic) personality traits • Patient refusal of external scar • Very thick nasal skin STANDARD FACIAL PHOTOGRAPHS Facial Analysis Horizontal 1/3s Trichion glabella Glabella subnasale Subnasalementon Lower 1/3 may be subdivided Upper lip 1/3 Lower lip + chin 2/3 Orten, Steven and Hilger, Peter. Facial Analysis of the Rhinoplasty Patient. Papel: Facial and Plastic ReconstructiveSurgery, 2002. Facial Analysis • Vertical 1/5s- intercanthal distance Orten, Steven and Hilger, Peter. Facial Analysis of the Rhinoplasty Patient. Papel: Facial and Plastic ReconstructiveSurgery, 2002. Frontal View • Twisted • Dorsal width • Alar base • Tip defining points • Asymmetry of domes Rhinoplasty DominicMCastellanoM.D. Castellano&HowardSpecialtyCenter Tampa,Fl , Osler Review Course Frontal view • A curved, unbroken line should sweep from the medial brow to the tip defining point Orten, Steven and Hilger, Peter. Facial Analysis of the Rhinoplasty Patient. Papel: Facial and Plastic ReconstructiveSurgery, 2002. Disruption of brow-tip esthetic line Abnormal contour involving the middle vault of the nose http://www.drhilinski.com/rhinoplasty-tutorial/spreadergrafting/ Frontal View- Symmetry • A line from midglabella to the menton should bisect the nasal bridge and tip symmetrically Deviated Nose / http://www.drlamperti.com/blog/post/how-to-fix-a-crookednose-with-rhinoplasty Frontal View- Nasal Dorsum and Alar base • The width of the alar base = intercanthal distance Alar base Reduction http://www.plasticsurgerypractice.com/issues/articles/2011-01_02.asp Frontal View •The width of the bony sidewall of the nose should be 75-80% of the normal alar base. WIDE BONY SIDEWALL Surgically corrected with lateral osteotomy http://www.noses.co.nz/Photo%20Gallery?Service=Show&Image=4 Frontal View- Tip Defining Points • Represent light reflection from the skin overlying the domes of lower lateral cartilages Tip- Angle of Divergence •Angle of divergence •Lateral angulation from midline 50-60° •Variations • Narrow • Elongated tip • Wide (Bulbous) • “Box and ball” Rhinoplasty DominicMCastellanoM.D. Castellano&HowardSpecialtyCenter Tampa,Fl , Osler Review Course Angle of DivergenceWide vs Narrow Wide angle of divergence = BOX Narrow angle Rhinoplasty DominicMCastellanoM.D. Castellano&HowardSpecialtyCenter Tampa,Fl , Osler Review Course Frontal View- Columella Columella should hang just inferior to alar rims Infratip lobule should be a gentle “gull in flight” Too much-reduction Retracted-augmentation Orten, Steven and Hilger, Peter. Facial Analysis of the Rhinoplasty Patient. Papel: Facial and Plastic ReconstructiveSurgery, 2002 . Lateral View •Dorsal hump •Projection •Rotation •Nasofrontal Angle •Columella Rhinoplasty DominicMCastellanoM.D. Castellano&HowardSpecialtyCenter Tampa,Fl , Osler Review Course Profile- Nasofrontal angle Connects the brow with the nasal dorsum GlabellaNasion NasionNasal tip Nasion (deepest point) should lie at supratarsal crease Angle is usually 115-130 degrees No well established parameters, use judgement to determine what is too shallow and too deep. Orten, Steven and Hilger, Peter. Facial Analysis of the Rhinoplasty Patient. Papel: Facial and Plastic ReconstructiveSurgery, 2002. Tip Projection- 60% Goode method •Line from alar crease tip •Nasiontip •Ratio should be 0.550.60 (alar) to 1.0 (nasion) www.rhinoplastyspecialistsurgeon.com/ Tip Projection- relation to lip • Nasal tip projection may also be measured in relation to the upper lip • 50-60% of the horizontal projection of the nose lies anterior to upper lip • >60% is over projected • <50% is under projected Orten, Steven and Hilger, Peter. Facial Analysis of the Rhinoplasty Patient. Papel: Facial and Plastic ReconstructiveSurgery, 2002 . Lateral View- Dorsum Line from Nasion to desired tip projection Nasal dorsum should lie at or slightly (1-2mm) posterior and parallel to this line Slight supratip break of dorsum gives definition and helps distinguish dorsum from tip NasoFacial Angle •The incline of the nasal dorsum in relation to the facial plane. •Ideally 36 degrees (varies 30 to 40) Zimbler, Marc Ham, Jongwook. Aesthetic Facial Analysis, Cummings: Otolaryngology: Head and Neck Surgery, 4th ed Tip rotation- Nasolabial Angle • Line anterior to posterior point of nostril • Vertical line perpendicular to Frankfurt plane, dropped along upper lip • Men 90-95 • Women 95-115 Tripod theory • First proposed by Anderson JR (1969) • Tripod • Lateral cruras= two posterior legs • Conjoined medial cruras = anterior third leg • Helps predict the tip rotation • Tilt in the direction of the shorter leg • Cephalic rotation • Shortening of the lateral cruras • Lengthening medial cruras Tripod Theory Alar -Columellar Relationship • 2-4 mm columella should be visible below alar margin on profile • >4 mm is excessive • Retracted alar lobule • Hanging caudal septum Orten, Steven and Hilger, Peter. Facial Analysis of the Rhinoplasty Patient. Papel: Facial and Plastic ReconstructiveSurgery, 2002. Columella- double break • Columella is seen to have a double break • 1st-tip of the nose turns posterior-inferior to infratip lobule • 2nd- mid columella , where takes a horizontal course to subnasale Base View Size Shape Orientation Width and length of columella Height of Lobule Rhinoplasty DominicMCastellanoM.D. Castellano&HowardSpecialtyCenter Tampa,Fl , Osler Review Course http://noserevisionsurgeryandsurgeons.blogspot.com / Base View •Isosceles Triangle •Lobule 1/3 •Columella 2/3 •Nostrils •Symmetric •Pear shaped •Columella flare at base and at infratip lobule Chin Position • Gonzales-Uloa • Line from nasion perpendicular to Frankfort planechin should approximate this line Orten, Steven and Hilger, Peter. Facial Analysis of the Rhinoplasty Patient. Papel: Facial and Plastic ReconstructiveSurgery, 2002 . Inadequate Chin Microgenia Underdeveloped mental portion of mandible Micrognathia Underdeveloped mandible with class II occlusion Retrognathia Mandible is normal in size but retruded with class II occlusion Micrognathia or retrognathia= orthognathic surgery Microgenia or doesn’t desire orthognathic surgery=augmentation mentoplasty Nasal –Forehead A forehead that slopes posteriorly from the brow to the hairline tends to exaggerate the appearance of nasal length and projection. A flat, vertically oriented, or protruding forehead diminishes the appearance of nasal length. Orten, Steven and Hilger, Peter. Facial Analysis of the Rhinoplasty Patient. Papel: Facial and Plastic ReconstructiveSurgery, 2002. Summary- Frontal View Frontal View Divide the face ▪ Horizontal 1/3 ▪ Vertical 1/5 Look for asymmetry Dorsal width ▪ 75% of alar base Alar width ▪ Intercanthal distance Shape and asymmetry of tip Note abnormalities in the dental occlusal relations Summary-Lateral View • Nasal length • Tip projection • Goode 1: 0.6 ratio • Crumley 3,4,5 • Tip Rotation • Nasolabial angle 90-95 men • 950-115 in women Nasal Relation • All analysis of lips should include assessment of forehead, brow, lips, chin, dentition. • Forehead- Nasofrontal angle • Chin- Vermillion borders to chin (should be within 2-3 mm) THE END Now that I have your attention, let’s practice! LIP DEFECTS Lip defects <1/2 – primary closure, w plasty 1/2-2/3- lip switch (abbe if away from commissure, estlander + commissureplasty if near commissure) flap width ½ defect width, kerapanzic >2/3- bernard webster bipedicled advancement flap, melolabial transposition, temporal forehead flap, free flap Abbe W plasty Karapanzic Bernard burrows Estlander Estlander Flap Abbe fLAP