Surgery for the dysfunctional nasal valve. Cadaveric analysis and clinical outcomes

Management of the Middle Vault

Early reductive rhinoplasty techniques focused on hump reduction and tip plasty with minimal focus on treating or preserving the integrity and width of the middle vault. With time, rhinoplasty surgeons noted the aesthetic and functional complications of the deformities that may occur in the middle vault with reduction techniques and developed methods to treat and also avoid these complications. Thus, the importance of protecting the integrity of the middle third of the nose has been increasingly emphasized over the years. Primary deformities of the middle vault that result in nasal obstruction require attention of the rhinoplasty surgeon, as well as preservation of support structures of the middle vault and internal nasal valve to minimize secondary deformities and functional compromise after rhinoplasty surgery.

Effectiveness of Spreader Graft Versus Autospreader Flap in Reducing Nasal Air Resistance

OBJECTIVE

The authors aimed to compare the functional outcomes of 2 different techniques, spreader graft and autospreader flap, by using them for nasal valve surgery in cadavers using acoustic rhinometry (AR).

METHOD

Ten frozen cadavers who underwent nasal valve surgery between May 2017 and August 2018 were randomly divided into 2 groups. Spreader grafts were applied to 10 nasal valve regions in 1 group, while the autospreader flap method was used on the other 10 nasal valve regions. The effectiveness of the surgical techniques was evaluated utilizing AR.

RESULT

We objectively evaluated the effect of surgery on nasal air resistance by comparing the preoperative and postoperative AR values (MCA1, MCA2, volume) in both the spreader graft and the autospreader flap groups. In addition, the differences in nasal potency gain after the application of both techniques were compared and the superiority of the 2 surgeries in terms of functional gains was evaluated. A statistically significant difference was observed in preoperative and postoperative MCA1, MCA2, and volume values in both the techniques and sides. The authors found more significant nasal valve opening for the spreader graft technique using acoustic rhinometric values when compared with the autospreader flap technique.

CONCLUSIONS

In both methods, the air resistance was observed to decrease objectively in the nasal valve region. Autospreader flaps increase the nasal valve angle without the need for additional cartilage tissue, and it could be an alternative to spreader grafts.

Nasal Valve Insufficiency in Dermatologic Surgery

BACKGROUND

Few publications have addressed nasal valve (NV) insufficiency as a complication of Mohs micrographic surgery.

OBJECTIVE

To comprehensively review the literature and further characterize the causes, prevalence, evaluation, and management of NV insufficiency as it relates to cutaneous oncology.

MATERIALS AND METHODS

A PubMed search was completed to identify articles related to the NV in the context of Mohs micrographic surgery, cutaneous oncology, and reconstruction.

RESULTS

Nasal valve insufficiency may occur during tumor removal and/or reconstruction. Defect size larger than 1 cm; location on the ala, sidewall, or alar crease; lack of structural support; and poorly planned flaps are the main risk factors for NV insufficiency. Several surgical techniques have been described to avoid and correct this complication.

CONCLUSION

Nasal valve insufficiency may be an underrecognized and underreported complication of Mohs micrographic surgery. Nasal valve insufficiency may be identified with relatively simple tests. Knowledge of NV anatomy and preoperative function assessment is essential. Recognition of this potential complication and awareness of its prevention and management may decrease morbidity in patients undergoing cutaneous surgery.

Nasal Obstruction and Rhinoplasty: A Focused Literature Review

BACKGROUND

There is a significant variation in the assessment, treatment, and outcomes of nasal airway obstruction and management in the published literature. This study aimed to: (1) define key components of the nasal airway, (2) identify frequent causes of nasal obstruction, and (3) review existing treatment methods.

METHODS

A systematic review of the literature was performed, and 135 studies were included via the following criteria: English, human subjects, and a primary endpoint of nasal airway improvement. Exclusion criteria were: abstract only, no airway data, pediatric patients, cleft rhinoplasty, sleep apnea, isolated traumatic nasal reconstruction, and cadaveric-only or animal studies.

RESULTS

The relevant obstructive sites include the ENV, septum, inferior turbinates, INV, and nasal bones. Addressing the alar rim alone may be insufficient, and inspection of the lateral wall and crura may be indicated. Correction of septal deviation involves attention to the bony base. Mucosal sparing treatment of inferior turbinates improves outcomes. INVs are a major source of nasal obstruction, and treatment includes spreader grafts. The bony nasal vault can contribute to nasal obstruction, including due to surgical osteotomies.

CONCLUSIONS

Anatomic causes of airway obstruction include the alar rims and lateral nasal walls, deviated nasal septum, inferior turbinate hypertrophy, decreased INV angle, and narrowed nasal bones. Treatments include graft placement; septoplasty; mucosal sparing turbinectomy; and lateral wall support. Pitfalls include failing to address the bony septum, over-resection of inferior turbinates, and narrowing of the nasal vault. Appreciation of airway management during rhinoplasty will improve functional outcomes.

LEVEL OF EVIDENCE V

This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Impact of Dorsal Preservation Rhinoplasty Versus Dorsal Hump Resection on the Internal Nasal Valve: a Quantitative Radiological Study

BACKGROUND

This study evaluates the impact of different hump takedown techniques, namely the conventional hump resection with midvault reconstruction, the push-down (PD) and the let-down (LD) procedures, on the INV dimensions.

METHODS

In this cadaveric study, six heads were divided randomly into either the conventional hump resection technique (Group A; n = 6 sides) or DPR techniques (n = 6 sides). This latter group was subdivided such that initially a PD procedure was performed (Group B; n = 6 sides), followed by a LD procedure on the same heads (Group C; n = 6 sides). A validated radiological method was used to measure the INV angle and cross-sectional area (CSA) in a modified coronal plane both pre- and post-procedurally.

RESULTS

Group A did not show significant reduction in the INV angle nor in CSA (p = 0.068 and p = 0.156, respectively). In the push-down group (B), we observed a mean change of 2.05° in the angles and 0.3 cm² in the CSA (p = 0.0163 and p < 0.001, respectively). The LD group (C) did not show significant reduction in the INV angle nor in CSA (p = 0.437 and p = 0.331, respectively).

CONCLUSION

Neither the conventional hump resection nor the LD DPR technique reduced the INV dimensions. However, the PD preservation technique significantly reduced the INV dimensions.

LEVEL OF EVIDENCE III

This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.

Comparison of Airflow Between Spreader Grafts and Butterfly Grafts Using Computational Flow Dynamics in a Cadaveric Model

Importance

Nasal valve compromise is a major cause of nasal obstruction, and multiple methods have been developed to address it.

Objective

To compare nasal airflow resistance, airflow partitioning, and mucosal cooling (heat flux) before and after 2 surgical interventions, butterfly and spreader graft placement, used to treat nasal valve compromise.

Design, Setting, and Participants

In this cadaveric tissue study, 4 fresh cadaveric heads underwent both spreader graft and butterfly graft surgical procedures in alternating sequence in March 2016. Preoperative and postoperative computed tomographic scans were used to generate 3-dimensional (3-D) models of the nasal airway. These models were then used in steady state computational fluid dynamics simulations of airflow and heat transfer during inspiration.

Intervention

Butterfly and spreader graft techniques.

Main Outcomes and Measures

Nasal airflow resistance, airflow partitioning, and heat flux.

Results

Donors 1, 2, and 3 were white males; donor 4, a white female. Computational fluid dynamics simulations during inspiration in 3-D models generated from preoperative and postoperative computed tomographic scans of the 4 cadaveric heads indicated reductions from preoperative values in nasal airflow resistance associated with both butterfly grafts (range, 20%-51%) and spreader grafts (range, 2%-29%). Butterfly grafts were associated with a greater reduction in nasal airflow resistance in models of all 4 cadaveric heads. Changes from preoperative values for heat flux, a biophysical variable that correlates with the subjective sensation of nasal patency, were more variable, ranging from -11% to 4% following butterfly grafts and -9% to 10% following spreader grafts. The preoperative airflow allocation in the left and right nostrils improved consistently with the butterfly graft. With the spreader graft, there were improvements for donors 1 and 4, but the allocations were worse for donors 2 and 3.

Conclusions and Relevance

The results of this study suggest that the more recently developed butterfly graft technique may be associated with a similar level of improved nasal airflow as that observed with the use of a spreader graft in nasal valve compromise. Both interventions were associated with comparable changes in heat flux. Because this study addressed only static internal nasal valve stenosis, even greater differences in air flow and heat flux between the 2 techniques may be anticipated in a dynamic model. Further investigation in patients is warranted.

Level of Evidence

NA.

Internal Nasal Valve Expanding Graft for Middle Vault Reconstruction

Various surgical techniques and approaches for addressing nasal valve collapse have been described in the literature. Still, new techniques continue to be developed and old techniques continue to be improved upon. The aim of the present study was to validate the use of the internal nasal valve expanding graft for middle vault reconstruction and to review the authors' experience using this technique. A total of 32 patients who underwent middle vault reconstruction were retrospective reviewed. Analysis using Visual Analogue Scale (VAS) and Nasal Obstruction Symptom Evaluation (NOSE)-scale was performed pre- and postoperatively. Visual Analogue Scale scores for nasal airflow per side were collected on a 10-point scale, with 1 indicating total obstruction and 10 indicating a perfect nasal airway. Nasal Obstruction Symptom Evaluation scale was used to assess nasal obstruction. Minimum follow-up period was 6 months after the operation. Pre- and postoperative VAS scores were used to assess degree of nasal valve collapse according to examination findings. It was significant that there was improvement in nasal valve collapse after surgery (P < 0.05). Based upon pre- and postoperative calculations made using NOSE scores, there was significant improvement regarding nasal blockage or congestion, troubled breathing and sleeping, and air through nose during exercise, respectively (P < 0.05). No complications in terms of septal perforation, hematoma, synechiae, or infection that required further intervention were noted at postoperative follow-ups. In conclusion, internal nasal valve expanding graft has now been shown to be successful for middle vault reconstruction in a group of appropriately selected patient.

Turbinate reduction with complete preservation of mucosa and submucosa during rhinoplasty

BACKGROUND

Turbinate surgery is an important adjunct to functional and cosmetic rhinoplasty. Many studies have analyzed the effects of various mucosal-sparing techniques, such as radiofrequency, laser, shaver, and others. These techniques, however, result in the destruction of the submucosal tissue of the turbinate. The goal of this study was to determine whether excellent functional outcome could be achieved with techniques sparing both the mucosa and submucosa from destruction when addressing the turbinates in rhinoplasty surgery.

MATERIALS AND METHODS

A prospective single-surgeon clinical study analyzing submucous resection of turbinate bone without destruction of the submucosa or mucosa in patients undergoing functional-esthetic rhinoplasty was performed. In all, 122 patients (47 men, 75 women, average age: 32.1 years, range: 16-69 years) were eligible for the study. The functional outcome was measured prospectively using the Nasal Obstruction Symptom Evaluation (NOSE) score. Occurrence of complications was documented.

RESULTS

Of over 1000 surgical patients, 307 candidates fulfilled multiple selection criteria and were entered in a rhinoplasty database. The surveys sufficient for the present study were completed by 122 of 307 patients (39.7%), of whom 91 patients reported improvement, 14 patients reported no subjective change, and 12 patients reported minimal worsening of nasal breathing. Overall, postoperative function was excellent (preoperative vs. postoperative NOSE score 47.5 vs. 20.1, p < 0.001). A large proportion of patients reporting worsening of symptoms (50%) were diagnosed with decongestant nasal spray abuse. Specific complications such as bleeding, foul drainage, dryness, and crusting were not reported.

CONCLUSION

All function-bearing structures of the inferior nasal turbinates, mucosa, and submucosa can be fully preserved without impairment of functional outcome during rhinoplasty. The technique of selective submucous bone resection is as an excellent alternative for patients undergoing rhinoplasty for concomitant treatment or prevention of nasal obstruction.

Use of Roof-Shaped Costochondral Cartilage for Correction of Saddle Nose Deformity

BACKGROUND

Cartilage grafts are routinely used in secondary and posttraumatic rhinoplasty. However, in most cases, there are weak areas in the nasal bones and upper lateral cartilages. The purpose of this study was to seek a solution for the keystone area and dorsum of the nose in revision and posttraumatic rhinoplasty cases, and reconstruction of saddle nose deformity including upper lateral cartilage with a roof-shaped graft.

METHODS

A retrospective review of reconstructive rhinoplasties performed for saddle nose deformities was conducted. A part of the costochondral graft was carved and thinned (roof graft) for reconstruction of the keystone area and upper lateral cartilages, and another portion was used for making a neoseptal (reconstructed septum) graft and strut graft. The roof graft was capped onto the neoseptal graft with sutures, and this cartilage framework was adapted with fitting the cranial edge of the neoseptal cartilage between the nasal bones. Finally, the strut graft was fixed to the cartilage framework.

RESULTS

A significant improvement in nasal shape and overall appearance was achieved in all cases, and 71.42 percent of patients recovered from nasal obstruction. No gross absorption, graft exposure, or recurrence of deformities was observed.

CONCLUSIONS

Surgical correction of a saddle-shaped nose should be an acceptable and uncomplicated technique, and the cosmetic result should be totally acceptable. There are many management options for a saddle-shaped nose. Use of roof grafts (shrunk gull-wing grafts) with neoseptal and strut grafts enables simulation of the internal nasal valve and results in a natural nasal position.

CLINICAL QUESTION/LEVEL OF EVIDENCE

Therapeutic, IV.

Nasal Obstruction Considerations in Cosmetic Rhinoplasty

Cosmetic rhinoplasty is an increasingly popular procedure in the United States. There are critical aspects of preoperative planning and intraoperative execution that facilitate successful rhinoplasty. Thorough preoperative assessment of the structures comprising the internal and external nasal valves and identification of potential at-risk areas for static or dynamic compromise must be done before surgery. Thoughtful maneuvers and meticulous surgical technique must be used. Postoperative counseling ranges from simple reassurance to medical therapy to procedural efforts to alleviate a patient's concerns. It is important to establish rapport with the patient and dutifully address all cosmetic and functional concerns.

External Nasal Valve Repair in Children: Alar Batten Graft Reinforced by External Temporary Suspensory Suture

BACKGROUND

The nasal valve area is the narrowest point in the nasal airway. External nasal valve (ENV) collapse during inspiration occurs if external valve area is too narrow or its lateral component is too floppy.

PATIENTS AND METHOD

Twelve patients (7 males, 5 females) aged 8 to 12 years complaining of nasal obstruction due to ENV dysfunction underwent surgical intervention using alar batten graft assisted by temporary external suspensory suture.

RESULTS

All patients showed subjective and objective improvement of the nasal airway. The mean Nasal Obstructive Symptom Evaluation (NOSE) was 14 ± 1.71 before surgery and 7.83 ± 1.47 1 year after surgery (significant improvement, p ≤ .0001). The mean Peak Inspiratory Flow Rate was 29.92 ± 4.46 before surgery and 42.58 ± 4.93 1 year after surgery (significant improvement, P ≤ .0001).

CONCLUSION

External nasal valve collapse in children can be managed surgically by using alar batten graft. Temporary suspension suture can be helpful for supporting of the graft until complete healing occurs.

The Nasal Valve: A Review of the Anatomy, Imaging, and Physiology

Background

The nasal valve region has remained difficult to define in clinical practice in part because of lack of integration between physiological data and anatomic-surgical findings.

Methods

In this review, we summarize the anatomic, physiological, and imaging data regarding this complex area of airflow regulation.

Results

There is no singular resistive focus or singular valve structure to explain all of the reported findings.

Conclusion

We conclude that there is a nasal valve region that begins approximately at the limen nasi and continues for several millimeters within the nasal cavum beyond the piriform aperture. Intranasal pressure measurements reflect distributed resistance across this nasal valve region. The geometry and anatomic constitution of the nasal valve region change greatly from its entrance to its distal aspect. To refer consistently to the component portions of the nasal valve region, we suggest the terms cartilaginous valve segment and bony valve segment for use in reporting future studies.

Assessment of Functional Rhinoplasty with Spreader Grafting Using Acoustic Rhinomanometry and Validated Outcome Measurements

BACKGROUND

Rhinoplasty is 1 of the most common aesthetic and reconstructive plastic surgical procedures performed within the United States. Yet, data on functional reconstructive open and closed rhinoplasty procedures with or without spreader graft placement are not definitive as only a few studies have examined both validated measurable objective and subjective outcomes of spreader grafting during rhinoplasty. The aim of this study was to utilize previously validated measures to assess objective, functional outcomes in patients who underwent open and closed rhinoplasty with spreader grafting.

METHODS

We performed a retrospective review of consecutive rhinoplasty patients. Patients with internal nasal valve insufficiency who underwent an open and closed approach rhinoplasty between 2007 and 2016 were studied. The Cottle test and Nasal Obstruction Symptom Evaluation survey was used to assess nasal obstruction. Patient-reported symptoms were recorded. Acoustic rhinometry was performed pre- and postoperatively. Average minimal cross-sectional area of the nose was measured.

RESULTS

One hundred seventy-eight patients were reviewed over a period of 8 years. Thirty-eight patients were included in this study. Of those, 30 patients underwent closed rhinoplasty and 8 open rhinoplasty. Mean age was 36.9 ± 18.4 years. The average cross-sectional area in closed and open rhinoplasty patients increased significantly (P = 0.019). There was a functional improvement in all presented cases using the Nasal Obstruction Symptom Evaluation scale evaluation.

CONCLUSIONS

Closed rhinoplasty with spreader grafting may play a significant role in the treatment of nasal valve collapse. A closed approach rhinoplasty including spreader grafting is a viable option in select cases with objective and validated functional improvement.

Combining Spreader Grafts with Suture Suspension for Management of Narrow Internal Nasal Valve Angles

Objective

The present study aimed to evaluate the long-term results of combining spreader grafts with lateral suspension techniques for management of narrow internal nasal valves.

Methods

This prospective study included 79 patients who underwent surgical interference for dysfunctional nasal valve. The surgical intervention was a combination of two commonly used techniques for management of internal nasal valve dysfunction: spreader graft insertion and lateral suspension of the upper lateral cartilages. The patients were assessed using the nasal obstruction symptom evaluation (NOSE) tool, computed tomography (CT) scans, and endoscopic examinations.

Results

All patients reported initial improvement and satisfaction in nasal breathing. Seventy-two patients (91%) reported sustained relief of nasal breathing for at least 3 years postoperatively. The mean NOSE scores decreased from 69.8 to 20.65 postoperatively. The internal nasal valve angle, as measured endoscopically, increased from 7.23° to 13.05° on the right side and from 6.75° to 11.98° on the left side; the increase was statistically significant. The angle, as measured on axial CT scans, increased from 8.11° to 14.15° on the right side and from 6.98° to 12.13° on the left side' this increase, too, was statistically significant.

Conclusion

Combining spreader grafts with lateral suspension sutures provide good, stable, and sustained repair of dysfunctional narrowed internal nasal valves.

Nasal Valve Collapse: Our Treatment Protocol

The nasal valve area is the functional area that allows airflow regulation. It could be divided in an internal area and an external one, basing on the anatomical landmarks. Many conditions can damage these areas with a consequently nasal obstruction, more often in particular extended rhinoplasty and sequels of facial trauma. To restore this area many techniques were advocated during the last decades.In this article the authors investigate on valve areas deficiency in sequel of rhinoplasty proposing a structural approach through alar batten grafts to correct internal-external nasal valves collapse.

Essential Anatomy and Evaluation for Functional Rhinoplasty

The nose, a prominent facial feature in defining facial beauty, is responsible for the fundamental physiologic functions of heating, humidifying, and filtering inspired air. When the normal balance of laminar and turbulent airflow become disturbed due to anatomic abnormalities, nasal obstruction may result. To successfully restore these basic physiologic functions, the surgeon must have a detailed understanding of the nasal anatomy and be able to successfully identify the specific cause of the nasal obstruction. This article discusses the fundamental surgical anatomy and the various diagnostic techniques and instruments at the surgeon's disposal.

Alar cartilage-an alternative for spreader graft in primary rhinoplasty

Background

Alar cartilage can be very useful for tip and dorsum grafts. Depending on its size and thickness, it can be an important alternative for spreader grafts to improve endonasal functional deficiencies, correct deviated noses, and prevent inverted “V” deformities. Caucasian patients with bulbous tips are the most common candidates to achieve such benefits. It is easy to obtain and to frame into a desired graft.

Methods

The authors describe a surgical technique using the alar cartilages as spreader grafts. All Caucasian patients with bulbous tips who underwent primary rhinoplasty were included. All patients have been evaluated after 3 to 4 months and after 1 and 2 years by aesthetical and functional criteria.

Results

Thirty-four patients (28 female and 6 male) underwent this procedure between 2001 and 2015: 94% reported a better airflow, 91% reported very good aesthetic results and were very satisfied 2 years postoperatively, and 12% had nasal deviations that were corrected with a one side double-layered spreader grafts. Two patients presented supra-tip deformities and one patient had a columella scar that was revised surgically. No cases of inverted “V” deformity were reported 2 years postoperatively.

Conclusions

Patients with functional satisfaction and with a straight and smooth dorsum seem to be the most important benefits that were achieved with this technique using alar cartilage spreader grafts, an alternative that can be offered to improve airflow and to prevent deviated and inverted “V” deformities.

Level of Evidence: IV, therapeutic study.

Two Suturing Techniques for the Prevention and Treatment of Nasal Valve Collapse After Mohs Micrographic Surgery

BACKGROUND

Tumor extirpation of nonmelanoma skin cancer (NMSC) adjacent to the alar groove, using Mohs micrographic surgery (MMS), may risk causing internal nasal valve (INV) collapse, resulting in reduced airflow during inspiration. There are many surgical options described in the literature to repair INV collapse as a postoperative corrective procedure, but few exist as an intra-operative preventative procedure.

OBJECTIVE

The authors present 2 distinct methods to prevent and treat INV collapse during the repair of a perialar surgical defect caused by MMS.

METHODS

A 3-point stitch method or a modified suspension suture technique was used to prevent INV collapse during the repair of MMS defects overlying the alar groove, for nonmelanoma skin cancers. The 3-point stitch was used with a complex repair. The modified suspension suture was used with flap reconstruction.

RESULTS

The 3-point stitch and the modified suspension suture are simple, single-stage surgical solutions for perialar defects with collapse of the INV caused by loss of subcutaneous tissue during MMS. Once executed, patients experienced immediate subjective airflow improvement which was also supported by clinical examination. Patients were followed at 1 week and at 3 months postoperatively. Thirty-four of 35 patients reported good functional and cosmetic results and were satisfied with the final outcome.

CONCLUSION

The 3-point stitch and the modified suspension suture techniques are easy and simple methods that can be incorporated into reconstruction after MMS for defects of variable depth covering any multisubunit perialar region to prevent or correct INV collapse.

Functional Rhinoplasty

Understanding nasal anatomy and physiology are the most important points for successful functional rhinoplasty. Anatomic structures playing major roles in nasal breathing functions include the septum, and internal and external nasal valves, so physical examination of these regions is essential. Planning for functional rhinoplasty involves the identification of the sites of nasal airway obstruction or old trauma, and addressing those regions during the operation with a number of different techniques that have been described.

Update on the evidence for functional rhinoplasty techniques

PURPOSE OF REVIEW

Functional rhinoplasty is a term that is commonly used to describe any technique used to address nasal obstruction in the nasal valve region. The cause of nasal valve collapse differs based on the site. Internal valve collapse may be idiopathic or associated with previous rhinoplasty, trauma, or weakened cartilage in older patients. External valve collapse is usually idiopathic and less likely to be associated with previous surgery. Various techniques have been developed over time, and the data in support of functional rhinoplasty continue to increase.

RECENT FINDINGS

This article discusses popular techniques currently in use, as well as newer techniques that have been described over the past several years. In addition, there is a trend toward utilizing objective testing and validated assessment scales to assess postoperative changes.

SUMMARY

Functional rhinoplasty utilizes a multitude of techniques to address nasal valve collapse. Although high-level data are lacking, the current literature is in support of nasal valve correction to improve nasal breathing. Most importantly, the technique employed is unique for each patient.

Secondary Improvement in Static Facial Reanimation Surgeries: Increase of Nasal Function

OBJECTIVE

The aim of this study was to measure the effect of the static reanimation operation administered to patients with facial paralysis on nasal function area by comparing patients' preoperative and postoperative subjective perception of the nasal airflow.

MATERIALS AND METHOD

We applied the Nasal Obstruction Symptom Evaluation (NOSE) scale to 13 patients who underwent static reanimation because of facial palsies, both preoperatively and postoperatively, and results were compared statistically. The changes in nasal base angulation were recorded and compared based on the photographs of patients taken before and after the surgery.

RESULTS

Following the static reanimation operation, 76% (10/13) of the patients reported a subjective improvement in the nasal airflow, whereas 24% (3/13) did not report any change. Mean preoperative and postoperative NOSE scale scores were 66.92 ± 9.90 and 36.15 ± 9.61, respectively. The change in mean NOSE scale score was statistically significant (P < 0.001). In the preoperative and postoperative comparison of the photographs taken from the front view of the patients, a decreased nasal base angulation compared with preoperative period was detected in 8 (61.6%) patients.

CONCLUSIONS

A statistically significant increase in subjective perception about nasal function was observed after the static facial reanimation; however, it is not certain whether this effect can be considered persistent. Long-term studies conducted on a larger patient population will provide beneficial results.

The stairstep graft: an alternative technique in nasal valve surgery

IMPORTANCE

The stairstep graft is a novel method to modify the lateral anchoring point of lateral grafts for nasal valve correction.

OBSERVATIONS

Eight consecutive patients with a diagnosis of nasal valve collapse were included in the study. The novel method of stairstep grafts was performed to reinforce the lateral crus and to widen the nasal valve. Postoperative evaluations were performed by using questionnaires and photographs. After a minimum follow-up of 3 months, all patients reported an improvement of nasal airway postoperatively. Persistent normalization of the preoperatively narrow alar base was noted.

CONCLUSIONS AND RELEVANCE

The stairstep graft introduces a new concept in nasal valve surgery by lateralization of the lateral anchoring point for the alar strut graft (or other lateral functional grafts). The concept seems logical, enhances an existing technique, and may be performed through a minimally invasive approach, and the potential for untoward effects seems to be low.

Characterization of postoperative changes in nasal airflow using a cadaveric computational fluid dynamics model: supporting the internal nasal valve

IMPORTANCE

Collapse or compromise of the internal nasal valve (INV) results in symptomatic nasal obstruction; thus, various surgical maneuvers are designed to support the INV.

OBJECTIVE

To determine the effect on nasal airflow after various surgical techniques focused at the level of the INV and lateral nasal sidewall.

DESIGN AND SETTING

A fresh cadaver head was obtained and underwent suture and cartilage graft techniques directed at the level of the INV using an external approach. Preoperative and postoperative digital nasal models were created from the high-resolution, fine-cut, computed tomographic imaging after each intervention. Isolating the interventions to the level of the INV, we used computational fluid dynamic techniques to calculate nasal resistance, nasal airflow, and nasal airflow partitioning for each intervention.

INTERVENTION

Suture and cartilage graft techniques.

MAIN OUTCOMES AND MEASURES

Nasal airflow, nasal resistance, and partitioning of airflow.

RESULTS

Using the soft-tissue elevation model as baseline, computational fluid dynamic analysis predicted that most of the suture and cartilage graft techniques directed toward the nasal valve improved nasal airflow and partitioning while reducing nasal resistance. Specifically, medial and modified flare suture techniques alone improved nasal airflow by 16.9% and 15.1%, respectively. The combination of spreader grafts and modified flare suture improved nasal airflow by 13.2%, whereas spreader grafts alone only improved airflow by 5.9%. The largest improvements in bilateral nasal resistance were achieved using the medial and modified flare sutures, outperforming the combination of spreader grafts and modified flare suture.

CONCLUSIONS AND RELEVANCE

Techniques directed at supporting the INV have tremendous value in the treatment of nasal obstruction. The use of flare sutures alone can address dynamic valve collapse or upper lateral cartilage incompetence without gross disruption of the nasal architecture. Using computational fluid dynamic techniques, this study suggests that flare sutures alone may improve flow and reduce resistance when placed medially, surpassing spreader grafts alone or in combination with flare sutures. The longevity of these maneuvers can only be assessed in the clinical setting. Studies in additional specimens and clinical correlation in human subjects deserve further attention and investigation.

LEVEL OF EVIDENCE

NA.

Upper lateral strut graft: a technique to improve the internal nasal valve

BACKGROUND

Internal nasal valve (INV) collapse can contribute significantly to nasal obstruction and may be caused by upper lateral cartilage (ULC) collapse medially or laterally. Surgical techniques addressing INV collapse have focused more on treating the narrowed INV angle, with less consideration of the lateral INV area. This article describes a technique to improve INV patency both medially and laterally. This study analyzes the changes in minimal cross-sectional area (MCA) at the INV after graft placement and determines whether these changes are significantly different for normal versus narrow INVs.

METHODS

Noses of six fixed cadavers were dissected by open rhinoplasty to release the ULCs from the septum. Upper lateral strut grafts were placed through subperichondrial pockets along the ULC undersurfaces and out over the piriform apertures into subperiosteal pockets. Grafts were secured to the dorsal septum. Acoustic rhinometry and nasal endoscopy were used to classify INVs before graft placement as narrow or normal and to assess changes at the INV after graft placement.

RESULTS

Mean pregraft MCA was 0.58 cm(2). Mean MCA percent increase after graft placement was 22%. By INV type, percent increases were 51% for narrow INVs and 1% for normal INVs. Mean increases in MCA after graft placement were statistically significant for the entire group and for narrow INVs, with increases of 0.10 cm(2) (p = 0.03) and 0.22 cm(2) (p = 0.004), respectively.

CONCLUSION

The upper lateral strut graft improved patency of cadaveric INVs, with statistically significant increases in the MCA most notable when placed for narrow INVs.

Comparison of effects of spreader grafts and flaring sutures on nasal airway resistance in rhinoplasty

Cephalic resection of the lateral crura of the alar cartilages, lateral osteotomies, and removal of the nasal hump during rhinoplasty may cause collapse of the internal nasal valve angle. This study was performed to compare preventive effects of two techniques (spreader grafts and flaring sutures) on rhinoplasty by rhinomanometry. Two hundred and forty-eight patients participated in this semi-experimental study. The patients were assigned into two groups. 28 of them were not available for follow-up. All patients had a straight nose in the midline and no severe septal deviations. 87 of 220 patients underwent the spreader grafts technique and the flaring sutures technique was performed in 133 patients. The nasal airway resistance was calculated by active anterior rhinomanometry on admission to hospital and again between 3 and 6 months following surgery. The mean of follow-up was 20.9 ± 2.9 weeks. After rhinoplasty, nasal airway resistance decreased in 46 patients (52.9 percent) of spreader grafts group and in 84 patients (63.2 percent) of flaring sutures group. The median nasal airway resistance difference (before-after surgery) of spreader grafts and flaring sutures groups was 0.027 Pa/ml/s (range -110 to 130) and 0.017 Pa/ml/s (range -0.690 to 0.790), respectively. The difference of nasal airway resistance between before and after rhinoplasty in two groups was insignificance (Mann-Whitney U test, P = 0.5). The spreader grafts and flaring sutures move the dorsal border of the upper lateral cartilage in a lateral direction and had similar preventive effect on nasal airway resistance after rhinoplasty.

What are some tips and pearls for preserving and improving nasal function when performing a cosmetic rhinoplasty?

PURPOSE OF REVIEW

Understanding nasal form and function is critical in performing successful cosmetic rhinoplasty. Careful evaluation of the patient's nasal airway with identification of areas of existing or potential obstruction is important in avoiding potential pitfalls that may compromise nasal function following rhinoplasty. This article will review surgical techniques that can be utilized to preserve and improve nasal function during cosmetic rhinoplasty.

RECENT FINDINGS

Recent literature on nasal functionality focuses on the management of the internal and external nasal valve as well as the nasal septum during rhinoplasty.

SUMMARY

Successful cosmetic rhinoplasty requires a thorough preoperative analysis of both aesthetic and functional characteristics of the nose. Close attention should be paid to the internal and external nasal valves and nasal septum before and during surgery to preserve and improve nasal function following cosmetic rhinoplasty.

The effectiveness of modified cottle maneuver in predicting outcomes in functional rhinoplasty

Objective. To assess the outcomes of functional rhinoplasty for nasal valve incompetence and to evaluate an in-office test used to select appropriate surgical techniques. Methods. Patients with nasal obstruction due to nasal valve incompetence were enrolled. The modified Cottle maneuver was used to assess the internal and external nasal valves to help select the appropriate surgical method. The rhinoplasty outcomes evaluation (ROE) form and a 10-point visual analog scale (VAS) of nasal breathing were used to compare preoperative and postoperative symptoms. Results. Forty-nine patients underwent functional rhinoplasty evaluation. Of those, 35 isolated batten or spreader grafts were inserted without additional procedures. Overall mean ROE score increased significantly (P < 0.0001) from 41.9 ± 2.4 to 81.7 ± 2.5 after surgery. Subjective improvement in nasal breathing was also observed with the VAS (mean improvement of 4.5 (95% CI 3.8–5.2) from baseline (P = 0.000)). Spearman rank correlation between predicted outcomes using the modified Cottle maneuver and postoperative outcomes was strong for the internal nasal valve (Rho = 0.80; P = 0.0029) and moderate for the external nasal valve (Rho = 0.50; P = 0.013). Conclusion. Functional rhinoplasty improved subjective nasal airflow in our population. The modified Cottle maneuver was effective in predicting positive surgical outcomes.

Rhinoplasty: panel discussion

Should one use an open or closed rhinoplasty approach? How appropriate is the endonasal approach in modern-day rhinoplasty? Should the tip lobule be divided or preserved? Are alloplastic implants inferior to autologous implants? Does release and reduction of the upper lateral cartilages from the nasal dorsal septum always require spreader graft placement to prevent mid one-third nasal pinching in reduction rhinoplasty? Over past 5 years, how have rhinoplasty techniques and approaches evolved?

[Flaring spreader flaps and upper lateral advancement. Modified techniques in the reconstruction of the internal nasal valve]

BACKGROUND

A collapse of the internal nasal valve and the formation of an inverted-V deformity represent common findings following dorsal hump removal in rhinoplasty procedures. Spreader grafts are considered as standard both in the prevention and treatment of such undesirable outcomes. The authors introduce modified surgical concepts using flaring spreader flaps and the upper lateral advancement technique to reconstruct the internal nasal valve.

METHODS

After mobilization of the mucosa and separation of the upper lateral cartilages from the septum also their attachments to the nasal bones are released. The cartilages then are rotated as spreader flaps into the area of the internal nasal valve and can be used as a replacement for conventional spreader grafts. By crucial modifications of commonly applied suture techniques both the contour and airway are improved. The upper lateral advancement technique is used in cases of already present inverted-V deformities. The upper lateral cartilages are mobilized in a similar fashion and serve as attachments to usual spreader grafts.

RESULTS

Flaring spreader flaps have been used in 164 patients undergoing primary rhinoplasty procedures for dorsal hump removals, the treatment of tension noses as well as deviated noses. Postoperatively all cases showed an adequate width of the middle nasal vault and pleasant dorsal aesthetic lines. No signs of an inverted-V deformity or a collapse of the internal nasal valve were present. Nasal breathing was considered significantly improved. The upper lateral advancement technique was applied in 9 patients with a present inverted-V deformity after previous rhinoplasties. During the following revision procedures an adequate reconstruction of the middle nasal vault as well as a subjectively improved airway was achieved in all cases.

CONCLUSION

Both flaring spreader flaps and the upper lateral advancement technique represent reliable methods in the reconstruction of the internal nasal valve and treatment of inverted-V deformities. Moreover, flaring spreader flaps can be considered as an appropriate alternative to conventional spreader grafts in patients with only small amounts of cartilage available.

Cadaveric analysis of nasal valve suspension

This study was designed to measure the efficacy of a nasal valve suspension technique and determine the adequate traction length without creation of nasofacial fullness in a cadaveric model. Seven fresh frozen cadaveric heads were evaluated. Minimal cross-sectional (MCA) areas were measured with a transient-signal acoustic rhinometer (Ecco Vision; Hood Instruments, Pembroke, MA) before and after suspension. The adequate traction length, which did not cause obvious changes, was determined. Five millimeters of lateral nasal valve traction was determined to be the maximal traction achievable without creating facial fullness. After lateral nasal suspension, average MCA increased by 13.7%. Average distance to the MCA from the nostril changed from 1.57 to 1.76 cm. Postsuspension values were significantly higher than the presuspension values (p < 0.05). Nasal valve suspension with 5 mm of lateral traction has a significant impact on nasal valve area without obvious nasofacial changes.

Disease-specific quality of life outcomes in functional rhinoplasty

OBJECTIVES/HYPOTHESIS

The goal of this study was to assess disease-specific quality of life as well as cosmetic outcomes following functional rhinoplasty in adults with nasal obstruction.

STUDY DESIGN

Prospective observational outcomes study.

METHODS

Disease-specific quality of life determinations and cosmetic outcome assessments were performed using the Nasal Obstruction Symptom Evaluation scale (NOSE), the Sleep Outcomes Survey (SOS), and a cosmetic outcomes scale. Ratings were ascertained preoperatively and postoperatively at 1 to 3 and at 6 to 12 months for patients with internal nasal valve dysfunction, external nasal valve dysfunction, and both (groups 1, 2, and 3, respectively).

RESULTS

All groups showed a significant improvement in NOSE scores at the early and the late time points (P < .0005). SOS scores significantly improved from baseline to 1-3 months after surgery (P < .0005) and to 6-12 months (P < .0005). Snoring cessation was reported in 30% of patients who snored preoperatively. The cosmetic appearance of the nose significantly improved after surgery (P < .0005).

CONCLUSIONS

This study utilized standardized terminology to diagnosis and treat nasal valve dysfunction, and validated disease-specific quality of life measures to quantify the improvements made with specific techniques. In particular, this study showed improvement in nasal obstruction and snoring in patients with nasal valve dysfunction treated surgically, without negatively impacting nasal cosmesis. Studies utilizing consistent methods of assessment and analysis will allow for future meta-analysis, increasing the level of evidence available in the field of functional rhinoplasty, and facilitate the creation of evidence-based management algorithms.

Dorsal aesthetic lines in rhinoplasty: a quantitative outcome-based assessment of the component dorsal reduction technique

BACKGROUND

Preservation or reconstruction of the middle nasal vault structure and internal nasal valve after dorsal reduction is challenging. The purpose of this study was to retrospectively analyze a series of 100 consecutive rhinoplasty cases with respect to preservation or restoration of the dorsal nasal lines following component dorsal reduction. A new quantitative mathematical application for subject digital images was performed.

METHODS

Medical information and digital images were obtained from 100 consecutive primary rhinoplasty patients from one author (R.J.R.) with University of Texas Southwestern Medical Center Institutional Review Board consent. All postoperative subject digital images were taken at more than 1-year follow-up. Preoperative and postoperative digital images of the dorsal nasal aesthetic lines were analyzed using a software application that quantitated various facial anatomical features compared with landmark measurements unique for each subject (pupil-to-pupil distance). Dorsal line symmetry, nose width, and variation of deformities on each side of the face were determined.

RESULTS

Mean subject dorsal line symmetry was 68 percent preoperatively and 94 percent postoperatively. Only 32.5 percent of dorsal lines were harmonious preoperatively, whereas 97 percent of dorsal lines were harmonious postoperatively. Identification of dorsal lines postoperatively versus preoperatively was similar in 74.6 percent, improved in 15.7 percent, and decreased in 9.7 percent. Nasal width lines were similar in 36 subjects, 21 subjects had wider nasal width lines, and 43 subjects had narrower width lines after surgery.

CONCLUSIONS

Component dorsal hump reduction procedures result in reliable and reproducible clinical outcomes. Quantitative assessments provide evidence that improved and harmonious curves of dorsal aesthetic lines are achievable.

CLINICAL QUESTION/LEVEL OF EVIDENCE

Therapeutic, IV.(Figure is included in full-text article.).

The midline forehead flap in nasal reconstruction

An ancient Indian medical document, the Sushruta Samhita, describes a technique of using a flap from the forehead for nasal reconstruction. The forehead flap remains the workhorse for major nasal resurfacing today. Contemporary nasal reconstruction with forehead flaps uses the well-established concept of facial and nasal subunits, restoring the three-dimensional morphology by replacing missing tissue with like tissue. This article covers the history of forehead flap surgery, current concepts in flap design, surgical steps, potential complications, defect analysis, lining, framework, and cover as a means of restoring the three-dimensional nasal morphology.

Structural grafts and suture techniques in functional and aesthetic rhinoplasty

Rhinoplasty has undergone important changes. With the advent of the open structure approach, requirements for structural grafting and direct manipulation of the cartilaginous skeleton through suture techniques have increased substantially. The present review analyzes the current literature on frequently referenced structural grafts and suture techniques. Individual techniques are described and their utility is discussed in light of available studies and data.

A novel method for internal nasal valve reconstruction: H-graft technique

OBJECTIVES

The aim of this study was to determine the efficacy of a novel method for internal nasal valve reconstruction that enables lateralization of the superior segment of upper lateral cartilages (ULC) from the septum to a greater extent than the spreader graft method with lateral wall support.

STUDY DESIGN

Prospective, controlled study set at a tertiary medical center.

METHODS

The study group was composed of 19 consecutive patients with pure internal nasal valve dysfunction who underwent surgery with the presented technique. All patients completed the Nasal Obstruction Symptom Evaluation (NOSE) and Rhinoplasty Outcomes Evaluation (ROE) tests preoperatively and at 12th month postoperative control to compare functional and aesthetic outcomes.

RESULTS

Based upon pre- and postoperative calculations made using NOSE scores, there was significant improvement regarding nasal blockage or congestion, troubled breathing and sleeping, and air through nose during exercise, respectively (P < .05). There were no aesthetic changes encountered by the patient when pre- and postoperative ROE scores were compared (P > .05).

CONCLUSIONS

The H shape of the graft not only improves the graft stability on dorsal septum but also has the advantage of combining the spreader and the splay effects. Current data from this prospective study suggest that this technique may be used in the surgical treatment of internal nasal valve dysfunction.

Surgical treatment of nasal obstruction in rhinoplasty

Often, rhinoplasty patients present not just for aesthetic correction, but for improvement of their nasal breathing due to functional abnormalities or problems. Because the aesthetic and functional problems must be addressed together, an understanding of both the internal and external anatomy is essential. In this article, the authors review the differential diagnosis of nasal obstruction and the important components of a thorough examination. In this article, medical treatment options are not discussed, but just as an exacting aesthetic analysis leads to an appropriate cosmetic rhinoplasty plan, a thorough functional analysis will dictate the appropriate medical or surgical treatment.

Validation of a cadaveric model for comprehensive physiologic and anatomic evaluation of rhinoplastic techniques

BACKGROUND

The physiologic effects of specific rhinoplasty maneuvers are incompletely understood, largely because of a limited ability to objectively examine such interventions. The purpose of this study was to develop and validate a cadaveric model for rhinoplasty testing.

METHODS

Ten cadaver heads were methodically prepared to simulate ventilatory conditions. Airway dimensions were measured with three-dimensional computed tomography and acoustic rhinometry. Airflow, pressure, and resistance were measured under conditions of both inhalation and exhalation. Resistance was determined using active anterior rhinomanometry and a continuously variable pressure gradient. Anatomic and physiologic properties were first compared against normative data. Measurements were then taken after application of an adhesive external midvault dilator (BreatheRight; GlaxoSmithKline).

RESULTS

The average minimal cross-sectional areas by acoustic rhinometry and by computed tomography were 0.87 cm2 and 0.84 cm2 per nostril, respectively (n = 20). The average distance from the nostril to the internal nasal valve was 1.7 cm by acoustic rhinometry and 1.5 cm by computed tomography, consistent with published in vivo normative data at the internal nasal valve. The average resistance with simulated exhalation closely approximated known normative values. With the application of the adhesive nasal dilator, the average area (acoustic rhinometry) increased by 50 percent at the internal nasal valve. During inhalation, the resistance decreased by 21 percent following application of the adhesive dilator.

CONCLUSIONS

The model provides an accurate representation of nasal anatomy and physiology suitable for objective analysis of rhinoplasty maneuvers. The objective modalities used herein may be applied to rhinoplasty study using this model with accuracy and reproducibility. The external dilator increased area at the internal valve (minimal cross-sectional area) and decreased resistance.

Correction of internal nasal valve stenosis: a single surgeon comparison of butterfly versus traditional spreader grafts

Nasal obstruction due to internal nasal valve (INV) collapse is relatively common. This article evaluates 2 different methods repairing the INV.Our subject population is a single-surgeon group of 82 patients who underwent a septorhinoplasty for nasal airway obstruction. Patients received either a spreader graft or butterfly graft. There are 30 patients who received spreader grafts and 52 patients who received a butterfly graft. All patients had a minimum of 3 months follow-up. All patients were evaluated with standardized questionnaire. Participants were asked to evaluate improvement in their nasal airway on an analog scale of 1 to 5. Participants were also asked to comment on changes in pre and postoperative snoring and sleep habits. Lastly, participants were queried regarding the ear cartilage harvest and if this bothered them.Patients undergoing both procedures demonstrated an overall improvement in their nasal breathing. Significant differences in improvement were observed for patients in the categories of postoperative snoring, sleep, and continuous positive airway pressure use. Patients were not bothered by the ear cartilage harvest.In select patients, the butterfly graft is a useful solution for INV collapse correction.

Septoplasty pearls

Techniques used for the diagnoses and treatment of septal deformity vary according to indications for the procedure and surgeon preference. Septoplasty is commonly performed to treat septal deformity causing nasal airway obstruction. Various preoperative and intraoperative "pearls" that the authors have found to be helpful in treating septal deformity and nasal airway obstruction are discussed.

Treatment of nasal obstruction in the posttraumatic nose

The sequelae of trauma to the nose include nasal deformity and nasal obstruction that can have a long-term negative impact on patient quality of life. Successful management of posttraumatic nasal obstruction relies on a detailed history, careful analysis, and accurate diagnosis. Dividing the nose into horizontal thirds assists in preoperative analysis as well as surgical treatment. Adequate treatment of posttraumatic nasal obstruction must address deflection of the bony nasal pyramid, septal deformities (especially caudal or dorsal), turbinate hypertrophy, and incompetence of internal and external nasal valves. Treatment must balance the seemingly disparate goals of re-establishing structure, improving contour and esthetics, as well as restoring the nasal airway.

Three Important Considerations in Posttraumatic Rhinoplasty

Introduction:

Many factors must be considered when performing a posttraumatic rhinoplasty. Since nasal fractures are the most common fractures in the adult facial skeleton, many patients who suffer midface trauma also suffer from nasal deformity/deviation and nasal airflow impedance. There are three specific regions within the nose which may impede airflow: nasal septum, internal nasal valves, and inferior turbinates. Each component of functional and posttraumatic rhinoplasty has been studied independently. However, a review of posttraumatic rhinoplasty procedures in which multiple regions of the nasal anatomy were addressed, when indicated, has not been elucidated much in the literature.

Materials and Methods:

A retrospective review of the medical charts and operative reports of 42 consecutive patients who underwent a post-traumatic rhinoplasty from July 2002 to December 2006 by the same surgeon was undertaken to determine which specific regions of the nose required secondary repair. Postoperative results were then reviewed to determine objective complications and subjective complaints. The specific techniques employed in the each operative procedure were then analyzed and objective complications and subjective complaints were recorded.

Results:

The most common preoperative patient complaint included difficulty breathing and nasal complex deformity followed by difficulty breathing alone and isolated deviation/deformity. The most common preoperative objective findings included airflow obstruction and nasal deformity, followed by isolated airflow obstruction, and isolated deviation/deformity with no air flow disturbance. All patients underwent a secondary posttraumatic septorhinoplasty. Septoplasty was performed in 78.6% of the patients; spreader grafts were used in 74% of the patients, and inferior turbinate surgery was done in 62% of the patients. Postoperatively, subjective findings revealed no complaints in 38 patients (90.5%). Two patients had complaints of persistent nasal deformity and air flow obstruction; 1 patient had persistent nasal deformity, and another patient had persistent air flow obstruction. Objectively, 5 patients had persistent nasal deformity, 2 patients had persistent air flow obstruction, and two patients had persistent airflow obstruction and nasal deformity.

Conclusion:

When indicated, by appropriately addressing the key regions of the nasal complex, including the septum, internal nasal valves, and inferior turbinates, the majority of patients (90.5%) will have no subjective complaints of difficulty breathing or a nasal complex deformity.