Rhinoplasty: Suture Techniques
Ira Papel
INTRODUCTION
The nasal tip is one of the most varied anatomic units in the human body. For that reason, multiple techniques in tip modification have been described throughout the history of rhinoplasty. Excision techniques were used primarily in the early procedures. In the more recent rhinoplasty literature, conservation techniques and the use of sutures has become the dominant theme.
Nasal tip width, contour, projection, and rotation are all elements that can be modified or enhanced by tip suture techniques. To accomplish this, narrowing sutures can be used to reduce the interdomal space which may also modify projection and rotation at the same time. The convexity of the lateral ala can be altered by the use of lateral crural convexity sutures.
The first published tip suture techniques were by Joseph who used direct interdomal sutures. This method was intended to stabilize the lower lateral cartilages after significant cephalic resection or cross-section. Goldman later used bilateral medial crural-vestibular flaps sutured to the caudal septum. This resulted in occasional extreme rotation, increased projection, and a signature appearance in which the cut ends of the domes became visible through the skin in later years. McCullough and English described the double-dome suture in 1985. This technique effectively narrows the interdomal space, but care must be taken to avoid medialization of the external valve. Kridel described a transdomal suture designed to recruit lateral crura to increase tip projection titled the “lateral crural steal.” Daniel and Tebbets later described intradomal dome-shaping sutures and several variations of tip sutures. Guyuron also described tip suture techniques to alter the domes and columella. Baker and Guyuron have summarized these techniques in review articles.
HISTORY
As with any surgical procedure, it is important to gather pertinent patient history. Prior surgical procedures, cosmetic and functional, must be considered in planning further surgery. Medical conditions such as diabetes, hypertension, and sleep apnea are important to consider and advise about risk. Psychiatric conditions and medications are equally important as physical findings, especially disorders such as body dysmorphic disorder. Surgeons must identify risk factors and use their best judgment in planning rhinoplasty surgical procedures.
PHYSICAL EXAMINATION
The widened interdomal space is an esthetic finding often associated with a wide lobule, poor projection, and boxy appearance. The underlying lower lateral cartilages may have an abnormally large divergence angle between the medial or intermediate crura. The accepted angle of divergence is up to 30 degrees. The acceptable interdomal width, between tip defining points, is up to 6 mm. Patients with an interdomal width greater than
6 mm are deemed appropriate for this technique. This chapter will illustrate a hybrid technique to accomplish tip contouring, narrowing and projection with an interlocking suture technique (Figs. 18.1 and 18.2).
6 mm are deemed appropriate for this technique. This chapter will illustrate a hybrid technique to accomplish tip contouring, narrowing and projection with an interlocking suture technique (Figs. 18.1 and 18.2).
INDICATIONS
Rhinoplasty tip suture techniques can be used for a myriad of nasal tip changes. The primary purpose is to narrow the interdomal space and/or contour the lower lateral cartilages. Reduction of lateral crural convexity is a common goal. Multiple suture designs have been described, but in this manuscript, I will confine myself to a description of the most common techniques of modifying the interdomal space and lateral crural convexity (Figs. 18.3 and 18.4).
CONTRAINDICATIONS
Suture techniques can be used in both intranasal and external rhinoplasty procedures. Contraindications are usually confined to known patient intolerance to suture materials. The most common suture materials are nylon, polypropylene, and polydioxanone. Suture granulomas or abscesses are rare but have been observed with essentially all suture materials.
PREOPERATIVE PLANNING
All patients are evaluated at a formal consultation. At this time, patient motivation, physical traits, past history, and realistic expectations are evaluated. Photographs are taken and used for further evaluation before surgery. Computer imaging is offered to selected patients, especially if the surgeon feels the patient is not visualizing the same changes as the surgeon is describing.