Rhinoplasty พิชัย พัวเพิ่มพูลศิริ. Skin ที่หนามาก, มี sebaceous glands, subcutaneous tissue เยอะ, เป็น

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Rhinoplasty Slide 2 Slide 3 Skin , sebaceous glands, subcutaneous tissue , least ideal skin type Slide 4 skin subcutaneous tissue cushion Slide 5 Tip recoil. If the recoil is instantaneous and vigorous, and the tip cartilages resist the deforming influence of the finger, more definitive tip surgery can usually be performed. Slide 6 Slide 7 A three-way mirror facial photographs, and even computer imaging important communication process between the expectant patient and the cautious surgeon. Slide 8 Realistic expectations and thoroughly informed consent are the keystones on which the most important surgical outcomea happy patientis achieved Slide 9 The concentration of 1% lidocaine is sufficient to produce excellent anesthesia and has an effective duration of 1.5 to 2 hours. No effort is made to block specific nerves. Slide 10 lateral wall of the dorsum, hugging the perichondrium of the upper lateral cartilages and the periosteum of the nasal bones. Slide 11 Identification of this plane is enhanced by lifting the soft tissues overlying the nasal dorsum with thumb and forefinger. Slide 12 Osteotomy Old fractured nose local anesthetic ascending process bleeding lateral osteotomy Slide 13 Slide 14 Slide 15 Slide 16 Slide 17 Slide 18 Slide 19 Slide 20 Slide 21 Slide 22 Slide 23 Slide 24 Slide 25 Noncaucasian Rhinoplasty Nasal tip skin is thick and sebaceous, lower lateral cartilages and septum are paradoxically small, weak, and deficient. The nasal bones are broad and flat. The low radix and underprojected nasal tip are common features. Slide 26 Noncaucasian Rhinoplasty Augmentation to the tip and dorsum remain the workhorse maneuvers Implants should not leave pressure on the overlying skin. Alar base surgery should be performed only judiciously. Slide 27 Slide 28 preparing the recipient site and corresponding surface of the implant, so that the implant will fit snugly against roughened nasal bones. The undersurface of the implant should be concave to fit the curvature of the dorsum of the nose. Slide 29 A three-dimensional concept must be kept in mind when shaping the graft. The dorsal aspect of the graft should be nearly straight and extend the full length of the nose. Grafts may be layered to increase the magnitude of augmentation. Slide 30 Slide 31 Slide 32 Slide 33 Silicone Slide 34 Slide 35 Slide 36 Slide 37 Slide 38 Slide 39 Slide 40 The nasolabial angle defines the angular inclination of the columella as it meets the upper lip. This angle should measure 95 to 110 degrees in women and 90 to 95 degrees in men. Slide 41 Slide 42 The nasofacial angle represents the angle formed from a vertical line tangent from the glabella through the pogonion intersecting a line from the nasion through the nasal tip. This angle ideally measures 36 degrees but can vary from 30 to 40 degrees. Slide 43 Slide 44 In patients with extremely thin skin, delicate alar side walls, and bulbous cartilage, predictable narrowing refinement can be achieved by transdomal suturing of the complete strips with horizontal mattress sutures. Slide 45 Slide 46 Slide 47 Solid medical grade silicone rubber, have been used for restoration of tip, alar, and septal defects and for saddle deformities Disadvantages include a high extrusion rate, foreign body reaction, and susceptibility to infection. Slide 48 Nasal Base Sculpting An incision is made from the base of the sill and carried out 1 to 2 mm above the alar- facial crease. The alar flap can be advanced medially, and a conservative amount of the ala can be excised. To avoid visible scaring, the cut edges should be carefully reapproximated. Slide 49 Nasal Base Sculpting A 5-0 chromic suture should be used to reapproximate the alar rim, and one or two subcutaneous 5-0 Vicryl sutures should be placed to reapproximate the alar-facial junction incision. A few 6-0 nylon sutures are used to reapproximate the skin edges. Slide 50 Slide 51 Slide 52 Slide 53 Septoplasty Slide 54 The injection is started at the caudal end of the septum. the contralateral membrane the area of the nasal floor around the maxillary crest Slide 55 Infiltration of the local anesthetic into this plane results in a hydraulic elevation of the septal flap, facilitating elevation and preservation of flap integrity Slide 56 Killian incision, approximately 1- to 2-cm posterior to the caudal septal margin within the respiratory epithelium. Slide 57 Slide 58 Hemitransfixion or transfixion incision made at the caudal border of the septum allows access to the deviated caudal septum and any posterior deflections. Slide 59 The incision is created within the squamous epithelium of the vestibule. Slide 60 The No. 15 blade is then used to incise mucosa down to and through the perichondrium. Identification of the proper plane is now of utmost importance. Slide 61 It is created by first identifying the caudal end of the septum itself. Inserting the nasal speculum into the nose and gently retracting the slightly opened speculum clearly reveals the caudal septal edge. Slide 62 Dissecting within a subperichondrial plane ensures little bleeding and a hardier flap with less likelihood of perforation. Slide 63 Slide 64 Before advancing posterior to the bony- cartilaginous junction, elevation of the mucoperiosteum along the nasal floor is frequently necessary to address Slide 65 -any maxillary crest deviation -the septum that has shifted off of the crest and is found to be obstructing the inferior airway. Slide 66 A second plane exists in the submucoperichondrial and submucoperiosteal spaces flanking the nasal septum. Slide 67 By elevating above the crest or deviated floor segment and then elevating below the segment, the surgeon creates two pockets or tunnels. Slide 68 Incising the nasal floor deflection or connecting the two tunnels directly helps to avoid mucosal tears Slide 69 If bilateral membrane wrents are noted, interposition graft of crushed cartilage Slide 70 Bilateral membrane elevation followed by septal incision using a Becker septal scissor above and below any deviated septal segment or spur allows increased mobility of the deflected segment. Slide 71 To decrease the potential for loss of dorsal or tip support, preserves at least a 1-cm dorsal and 1-cm caudal septal segment, which has been termed the L-strut Slide 72 L-strut Slide 73