Rhinoplasty: Endonasal Strategies
Pietro Palma
INTRODUCTION
Rhinoplasty occupies a central and privileged position in contemporary facial plastic surgery. Alongside the desire for physical self-improvement, the demand for rhinoplasty in particular has grown over the past few decades to such an extent that it may now be considered the most important facial plastic operation. However, concomitant with its development and expansion, rhinoplasty has also faced major hurdles. The public is now better informed about the possible risks and pitfalls of surgery, and armed with information from the Internet, they are ready to challenge the rhinoplasty surgeon at every step with incremental levels of expectation. Rhinoplasty has now become a minefield for the novice surgeon due to increasing malpractice premiums and risks of legal action against the surgeon. This makes it absolutely critical for surgeons to be sufficiently trained in rhinoplasty before embarking on a career marked by frequent technical limitations and negative encounters with patients.
This chapter aims to lay the foundation for surgeons who seek to master the endonasal approach for dealing with both “standard” and challenging rhinoplasty patients. As the older and more rigid classification of rhinoplasty into external and endonasal has lost its luster, the reader is encouraged to think of rhinoplasty in terms of endonasal hybrid rhinoplasty, where the term “hybrid” implies the incorporation of anatomical concepts and sophisticated suturing-grafting techniques developed by “openers” into the theoretical and technical corpus of endonasal rhinoplasty. The end-result is a higher technical flexibility allowing a tailor-made procedure for each patient, while minimizing tissue trauma, unnecessary scarring, and tissue plane distortion. Technical evolution has made endonasal hybrid rhinoplasty a technical option even for the most challenging patients in both the primary and revision surgery.
HISTORY
The first encounter with the patient is the most important step in a journey that may take several months or years to reach its conclusion. The astute surgeon will have read the letter of referral and familiarized him- or herself with the important features before the patient enters the examination room. Always allow patients adequate time to express their concerns and ultimate goals. A full rhinologic history, including airflow, rhinorrhea, postnasal drip, sense of smell, facial pain, previous trauma or nasal surgery, allergy, asthma, and other allergies should be sought. The patient’s past medical history may reveal significant factors such as past experiences with aesthetic surgery, an active or previous psychiatric limitation, and the use of anticoagulants, nonsteroidal antiinflammatory agents, or herbal products. Patients may have a combination of aesthetic and functional problems, so the surgeon must make provision for medical therapy of nasal symptoms and be prepared for a combination of hybrid rhinoplasty and endoscopic sinus surgery. Additionally, with this in mind, a complete medical and surgical history are required for surgical clearance with considerations for anesthesia, such as cardiopulmonary clearance, as well as standard laboratory, pregnancy, and coagulation testing.
PHYSICAL EXAMINATION
A detailed physical examination provides the rhinoplasty surgeon with a wealth of information about the patient’s anatomy, pathology, and coincidental findings. These should be summarized and form an integral part of the ultimate surgical strategy. Start with a general assessment of the patient’s height, demeanor, and facial symmetry, both static and dynamic. Having made a general examination of the face, the surgeon inspects the nose while the patient sits quietly. The head is slightly flexed, and light is shone on the patient’s face.
The general appearance of the external nose is evaluated regarding its size and shape, gross deformities such as scoliosis or deviations, deficiencies, condition of the skin, and the presence of scars. From this frontal view, observe the brow-dome lines. These lines not only constitute the critical landmark for symmetry of the bony-cartilaginous framework of the external pyramid but also may act as a preliminary guide to the presence of septal pathology.
Without moving the patient, observe the secondary landmarks for the assessment of symmetry. These include (a) the nose-cheek transition areas, (b) width of the dorsum, (c) scroll areas, (d) alar-columellar relationship, and (e) width of the alar base.
After the general inspection, it is advisable to examine the external nose in detail with respect for its unique anatomical components: the bony pyramid and cartilaginous pyramids, and the inferior third. The main goal consists of determining the extent and location of nasal asymmetries. Although varying degrees of asymmetry are the rule, their extent and distribution can detract from the beauty of the individual patient. From the frontal view, observe the patient’s quiet respiration and specifically look for mouth-breathing, collapse or flaring of the ala, the “allergic salute,” a supratip crease that sometimes accompanies it, and surgical scars on the face that may provide information about previous surgery.
While this observation of the static nose from different angles is informative, further insight can be gained during the dynamic phase of the examination. The patient is asked to show his/her teeth in the frontal view. This will accentuate asymmetrical movements of the musculature facial and nasal muscles. Asymmetry of the nasal tip can become more obvious with these movements. In the profile view, first ask the patient to show his/her teeth. An overactive depressor septi nasi muscle will pull the nasal tip down and decrease the columellar-labial angle. Further movement of the nasal tip may also be observed if the patient is asked to move the upper lip down towards the lower lip.
More information about the nose can be gained by lifting the columella with the left thumb. This maneuver will allow the surgeon to determine the length, shape, and position of the caudal septum as well as its relationship with the nasal spine. As a nasal speculum can mask valuable anatomical detail, a two-prong retractor can be used instead to display a wealth of anatomical detail characteristic of this area. All prominences, recesses, and grooves, in addition to the relationship of the vestibular floor to the pyriform fossa, must be noted.
The second phase of examination, palpation of the nose, will provide vital information about the nose with practical implications for surgical planning. Special attention should be given to the following:
Thickness and elasticity of the skin and its adherence to underlying structures.
The shape, size, and angulation of nasal bones.
The septal dorsum and tip cartilages can be assessed by gentle digital pressure.
The “tip recoil test,” that is, pushing the tip down and then immediately releasing it, reveals the amount of tip support.
By placing the tip of the thumb in one vestibule and the tip of the index finger into the other, the surgeon can assess the position, thickness, shape, and mobility of the caudal septum. This technique will also allow the surgeon to feel the characteristics of the membranous septum by pulling on it.
Palpate the nasal spine and estimate its shape, symmetry and protrusion.
Firmness and resilience of the lateral crura should be assessed during quiet breathing and forced inspiration. Areas of collapse are identified by gently supporting the various regions of the alae from the vestibular side using a blunt instrument. If the patient reports significant improvement of the airflow, weakness of the external valve is diagnosed and the area(s) of the epicenter of the collapse is(are) precisely marked on the outer skin for possible supportive grafts. A similar maneuver is executed at the level of both upper lateral cartilages in order to diagnose incompetence of the internal nasal valve.
The third and final phase of nasal examination involves nasal endoscopy. A systematic technique ensures that no areas are overlooked. A 0 degree, 2.7-mm-diameter rigid telescope is inserted parallel to the floor of the nose. The surgeon assesses the following:
The patency and morphology of the valve area along its whole contour
The anterior portion of the nasal cavity
The inferior meatus, the head and body of the inferior turbinate, and the septum in its inferior portion
The floor of the nose, posterior aspect of the inferior turbinate, and the entire contour of the choana
The posterior wall and the roof of the nasopharynx, fossa of Rosenmuller with the Eustachian tube orifice, and, by rotating the telescope on its longitudinal axis, the corresponding contralateral anatomical structures
The second step consists of retracting the telescope to the anterior nasal valve and adjusting its position to form a 45-degree angle above the horizontal plane in order to thoroughly inspect the middle meatus and identify polyps or purulent exudate, which would require a CT scan. When the patient presents with rhinosinusitis symptoms, computed tomography imaging (three-plane reconstruction) is mandatory in order to evaluate the nature and location of the anatomical blockage and plan for concomitant endoscopic sinus surgery.
Clinical Photography
The next step involves systematic photography of the patient’s face. Ideally, the patient should sit in front of a dark screen. Two light sources are aimed at 45 degrees to the subject, while a third light source illuminates the background. The simultaneous illumination of the patient from these sources ensures adequate lighting and loss of shadows. While a detailed discussion of photographic techniques is beyond the scope of this chapter, adequate photography with standardized views is the cornerstone of facial analysis. Basic views include one frontal, two profiles, four three-quarters views (two per each side), one base, one helicopter, two “base-radix” views, two dynamic profile views, and one dynamic frontal view. Two “selfie” views, right and left, complement the standard set of preoperative pictures. In addition, two further frontal views are reconstructed: the two right halves and two left halves are each spliced together.
Aesthetic surface analysis is paramount. It consists mainly of “chiaroscuro” (lights and shadow) analysis that emphasizes the visual contrast of the different nasal areas. On the frontal view, there are 4 “chiaroscuro” border lines (2 brow-tip lines and 2 nose-cheek lines), which demarcate 3 distinct areas: a central “bridge light,” and 2 bilateral sidewall shadows.
From the surface analysis point of view, the nasal tip consists of four aesthetic subunits: central (domal) light, lateral (alar) light, supra-alar shade, and scroll shade.
Consequently, aesthetic rhinoplasty can be considered a “surface-contour” operation.
Summary of the First Clinical Encounter
History: Evaluate the patient’s wishes; discover any potential pitfalls that may preclude rhinoplasty ± endoscopic sinus surgery.
Examination: Define specific anatomical features in both the static and dynamic phases that need special attention for the operative plan. Perform a full endonasal examination to evaluate the intranasal structures and to diagnose concurrent rhinologic disease and plan intervention.
Clinical photography: A sequence of well-defined views in static and dynamic phases that will be analyzed after the first meeting and create the foundation for a personalized strategy.
Patient communication: Provide the patient with your understanding of their expectations, and agree to meet again at a later date to plan surgery to discuss any concern and plan realistic changes for the nose.
INDICATIONS
By the end of the history-taking and examination process, the surgeon should have a clear idea of the answer to four questions that may be conveniently remembered as the “Four Ws”:
1. What specifically would the patient like the doctor to do for him or her?
2. Why does the patient want this particular change?
3. Why does the patient want the operation at this particular time?
4. Why has the patient chosen this particular surgeon?
Careful analysis of the answers to these questions can lead the surgeon to determine if the patient is a candidate for rhinoplasty. Indications for rhinoplasty include anatomic nasal deformity resulting in a functional deficit (nasal obstruction refractory to medical management being the most frequent functional issue) or cosmetic issues with a dorsal hump and tip malposition being the most common subjective complaints.
CONTRAINDICATIONS
There are relatively few contraindications for rhinoplasty. Two important contraindications are a patient with unrealistic expectations or a poor understanding of the risks of surgery. From a medical standpoint, patients who cannot tolerate a general anesthetic are obviously not candidates for a complex rhinoplasty. Patients with
bleeding disorders should be treated with caution, as should revision surgery within 1 year of their primary rhinoplasty.
bleeding disorders should be treated with caution, as should revision surgery within 1 year of their primary rhinoplasty.
PREOPERATIVE PLANNING
While photography marks the end of the first consultation, both the surgeon and the patient make constructive use of their time before their next obligatory meeting. The patients are encouraged to read the literature supplied to them and to ponder the impact of surgery on their personal and working life, the possible risks of surgery, and a potential for future revision. The surgeon uses the time between the two meetings for the most important step in rhinoplasty: facial and nasal analysis. The results of facial/nasal analysis based on the clinical photographs provide a list of aesthetic defects of the face in general, and of the nose in particular. Then, a strategy is tailor-made for that particular patient based on their specific anatomical and pathologic findings and desires for change. This unique plan is meticulously drafted, such that every step of the future surgical operation has already been thoroughly analyzed. The surgeon then produces computer simulations of proposed changes. Patients are told that these simulations are by no means a guarantee of the end result, but provide the patient and the surgeon points of discussion during their second meeting.
As both the patient and the surgeon have had time to think about the patient’s particular expectation in the intervening period, the second consultation is aimed at conveying the findings of the facial analysis, discussing the various options that may be possible based on the computer simulations, and allaying the patient’s fears and concerns about surgery. Practical advice regarding the do’s and don’ts of the postoperative period are of great importance to the patient as they often entail limitations in work and social engagement for a limited period of time. It is of utmost importance that the patient realizes that not every desire for change can be achieved, and that the possibility of revision surgery of about 10% is a real one even in the best of hands.