18 Problems with the Nasal Dorsum



10.1055/b-0035-121696

18 Problems with the Nasal Dorsum


The name Nefertiti ( Fig. 18.1 ) means “The beautiful one has arrived.” The favorite wife of the pharaoh Akhenaten, she lived in the 14th century BC. She was immortalized by the familiar bust made of limestone and plaster, currently on display at the Neues Museum in Berlin. She is considered an icon of feminine beauty and charisma. Anyone who gazes into her eyes will never forget the impression.

Fig. 18.1 Nefertiti in the New Museum in Berlin.

The problems that may involve the nasal dorsum are numerous and diverse, ranging from an inverted-V deformity, open roof, and displaced osteotomy fragments to cysts and irregularities of the nasal dorsum. A correspondingly large range of solutions have been recommended for addressing these problems. 1 5



18.1 Inverted-V Deformity


The inverted-V deformity is an aesthetically and functionally troublesome complication of rhinoplasty that is particularly common after the removal of large dorsal humps. It appears as a groove running along the piriform aperture between the bony nasal pyramid and the flexible cartilaginous part of the nose. It produces a fairly conspicuous and characteristic shadow shaped like an inverted V, which the patient may perceive as unsightly. The inverted-V deformity may appear shortly after the resolution of postoperative swelling or may develop as a late complication. Early appearance of the deformity suggests that the cause relates to displacement, loosening or detachment of the upper lateral cartilage from the nasal pyramid during the operation. Excessive rasping creates the greatest risk of intraoperative trauma. For this reason, rasping should be done as sparingly as possible and, when necessary, should be directed at an oblique angle to the piriform aperture. In our experience, standard 4-cm rasps have become obsolete for aesthetic rhinoplasty. Alternatives have been developed that minimize the risk of upper lateral cartilage trauma through the use of smaller, flatter instruments. In addition, diamond files should always be used in preference to coarse rasps. Short nasal bones, long upper lateral cartilages, and a large nasal hump are a triad that predisposes to the inverted-V deformity. Even with technically correct lateral osteotomies, scar contraction occurs in the late healing phase that tends to medialize the osteotomy fragments. As a result, the nasal dorsum sags below the pyramid, causing stenosis of the nasal cavity or internal nasal valve. The best way to prevent this problem is by the placement of spreader grafts or extended spreader grafts. 6



Case 5


Case elements: inverted-V deformity, undefined nasal tip, over-projected dorsum, extracorporeal septoplasty (operation by Jacqueline Eichhorn-Sens).



Introduction

The patient was unhappy with the functional and aesthetic results of a previous rhinoplasty performed elsewhere. Functional problems were caused by residual septal deviation, internal valve stenosis, and inferior turbinate hypertrophy.



Findings

Frontal inspection showed disharmony of the brow-tip aesthetic lines and a conspicuous inverted-V deformity ( Fig. 18.2a ), suggesting that the upper lateral cartilages had been separated from the bone in the previous rhinoplasty. The bony pyramid was wide and asymmetrical. A deep nasal root and bony hump were noted in the profile view ( Fig. 18.2b ). The nasal tip was wide and bulky, asymmetrical, and not well defined ( Fig. 18.2a, b ). Endonasal inspection revealed a deviated septum, especially at the anterior nasal border; the rest was deviated and round bodied ( Fig. 18.2g, h ). On examination with a glass probe, manual expansion of the anterior nasal valve produced an immediate sensation of improved breathing, confirming that the internal valve was stenotic and required reconstruction.

Fig. 18.2 (a) Preoperative frontal view shows disharmony of the brow-tip aesthetic lines, a conspicuous inverted-V deformity, deviation of the nose, and a wide, undefined nasal tip. (b) Profile view shows a bony hook and overprojected cartilaginous dorsum. (c) The asymmetrical, undefined tip is conspicuous in the basal view. (d–f) Follow-up views at 18 months. Nasal breathing is normal. (d) Frontal view. The brow-tip aesthetic lines are symmetrical, the nasal axis is straight, and the tip is well defined. (e) Basal view displays a symmetrical and well-defined tip. (f) Profile view shows a more pleasing appearance of the dorsum with stable correction of the nasolabial angle. (g, h) The anterior septal border was deviated, and all of the septal cartilage was under tension. (i, j) A thin piece of perpendicular plate was sutured to the new anterior septal border to straighten it permanently and give it support. At this point the new anterior border is fully straightened. Spreader grafts have been placed in the dorsum.


Surgical Procedure

An open approach was performed through a standard inverted-V midcolumellar incision. Analysis showed that the anterior septal border was deviated and the whole septal cartilage was under tension. Therefore, we decided to remove the septum ( Fig. 18.2g, h ) and perform an extracorporeal septal reconstruction. We smoothed out all irregularities, particularly addressing the thickened area at the junction of the bony and the cartilaginous septum.


The rest of the septum was then rotated 180 degrees to obtain a straight residual septum. A thinned perpendicular plane was sutured to the new anterior septal border to support the cartilage piece ( Fig. 18.2i ). We sutured spreader grafts made of septal cartilage to the dorsal part of the new septum to restore the integrity of the internal nasal valves, reestablish the dorsal aesthetic lines, and increase the stability of the framework ( Fig. 18.2i, j ). Lateral, paramedian, and transverse osteotomies were performed on both sides following reduction of the bony hump. The new straight septum was repositioned and anchored to the upper lateral cartilages with multiple back-and-forth sutures. Anterior fixation was achieved with several sutures passed through a small drill hole in the anterior spine. A cartilage graft was placed on the nasal root. The dorsum was additionally covered with a layer of homologous fascia lata. For correction of the nasal tip, the cephalic portions of the lower lateral cartilages were resected and the dome area was reconstituted with transdomal sutures. A spanning suture was placed to control flaring, and a tip suspension suture stabilized the nasal tip in the ideal position.



Psychology, Motivation, Personal Background

The previous operation had been done elsewhere to correct functional problems, but the septum was still deviated. Additionally, the upper lateral cartilages had been separated from the bone in the previous operation, narrowing the internal valves and exacerbating the airway problems. The patient also suffered from aesthetic deformities including a conspicuous inverted V, a hooked nose, and a broad, undefined nasal tip. Thus, the patient could reasonably expect functional and aesthetic improvements from the revision surgery. When seen 18 months postoperatively, the patient was satisfied with the aesthetic and functional outcome ( Fig. 18.2d–f ).



Discussion

It is reasonable to ask whether the septal cartilage could have been straightened without removing the entire septum. The most important issue involves the outer framework of the septum: Is at least a straight L-shaped framework present, or is the outer framework deformed? In this case the framework, especially the anterior septal border, was not straight. A straight septal framework is essential for a straight nose. Therefore, every effort was made to straighten the septum.



Case 6



Introduction

A 32-year-old woman presented 10 years and 8 months after undergoing a septorhinoplasty at another hospital. She worked as a waitress at a popular resort on the Baltic Sea and desired a rapid and permanent improvement of the primary outcome.



Findings

Frontal view ( Fig. 18.3a ) shows an inverted-V deformity with undercorrection of the cartilaginous nasal dorsum. Oblique ( Fig. 18.3b ) and profile views ( Fig. 18.3c ) show a residual hump, irregularities all along the nasal dorsum, and incomplete removal of a nasal hump with a cartilaginous polly beak.

Fig. 18.3 (a–c) Preoperative findings. (d–f) Postoperative findings. (g, h) Long-term follow-up 10 years after revision surgery. (i) Intraoperative view. Spreader grafts have been placed on both sides.

Follow-up views after revision rhinoplasty show the findings at 2 years ( Fig. 18.3d–f ) and at 10 years ( Fig. 18.3g, h ).



Psychology, Motivation, Personal Background

The patient felt that the result of the primary operation was worse than her original nose. She was highly motivated to seek a maximal degree of improvement.



Surgical Procedure

A 4 × 12-mm cartilage strip was harvested from the lower septum through an open approach. Cartilage remnants were removed from the septum, the upper lateral cartilages were detached, the dorsal septal margin was shortened, bilateral spreader grafts were placed, and medial and lateral curved osteotomies were performed on both sides. The entire nasal dorsum was camouflaged with allogeneic human fascia lata.



Discussion

The nasal dorsum was augmented with allogeneic, devitalized, freeze-dried fascia lata. Fascia is a useful material for dorsal nasal camouflage, although its tendency to expand in vivo leads to protracted swelling that may last for months. It should be decided on a case-by-case basis whether autologous tissue would be a better option than allografts.



18.2 Residual Hump


There are several typical problems that may arise after the surgical correction of a humped nose. Besides an inverted-V deformity, rocker deformity, or open roof, a postoperative residual hump is particularly distressful because patients equate it with a failed operation. The main decision to be made in these cases is whether to take a wait-and-see approach or proceed at once to revision surgery. Residual humps may be predominantly bony or cartilaginous. They may result from the faulty placement of an osteotomy line during removal, persistent periosteal swelling, appositional bone growth, granulating inflammation, or organized hematomas. Atraumatic handling of the periosteum at surgery is the best way to promote rapid and uneventful healing of the nasal dorsum.



Case 7 (Late Revision)



Introduction

The patient presented at 41 years of age with nasal airway obstruction and aesthetic complaints. She sought correction of the nasal dorsum, correction of the dorsum-tip junction, and narrowing of the tip.



Findings before Primary Rhinoplasty

Frontal view ( Fig. 18.4a ) shows a prominent nasal dorsum with a plateau in the supratip area and a broad nasal tip. Profile view ( Fig. 18.4b ) shows a bony and cartilaginous hump with overprojection and a small nasofrontal angle. Oblique view is shown in Fig. 18.4c .

Fig. 18.4 (a–c) Findings before the primary rhinoplasty. (d, e) Findings before revision rhinoplasty. (f–h) Findings after revision rhinoplasty. (i) Intraoperative view. (i) Use of a miniature rasp combined with a microcurette. (j) Positioning the microcurette through a small intranasal incision. (k) Cutting and smoothing action of the microcurette. (l) Small and mini-rasps and diamond files. (Karl Storz, Tuttlingen.)

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Jun 9, 2020 | Posted by in OTOLARYNGOLOGY | Comments Off on 18 Problems with the Nasal Dorsum

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