Non-surgical rhinoplasty through minimal invasive nose thread procedures: Adverse effects and prevention methods.

BACKGROUND: This review addresses the intricacies of non-surgical rhinoplasty, particularly focusing on the utilization of absorbable sutures known as "Volumizing threads" in combination with fillers. The aim is to explore the enhanced precision of nasal contouring offered by these combined procedures compared to sole filler injections. METHODS: Through comprehensive clinical cases, this article scrutinizes the landscape of adverse effects and their prevention strategies associated with minimal invasive nose thread procedures. The discussion emphasizes various complications, including thread protrusion, migration, infections, skin dimpling, and granuloma formation, along with their respective management approaches. RESULTS: This article delineates cases of complications arising from thread placement, ranging from visibility issues to skin infections and granuloma formation. It highlights instances of thread visibility, oral mucosa protrusion, skin infections, dimpling, and granuloma formation. Additionally, it outlines the corresponding management strategies, accentuating the criticality of early intervention to preclude severe complications in non-surgical rhinoplasty involving nose threads. CONCLUSION: Non-surgical rhinoplasty, leveraging nose thread procedures, offers heightened precision compared to conventional filler injections. However, the review underscores the importance of recognizing potential risks and promptly addressing complications like thread extrusion, migration, and infections. Understanding these complexities in non-surgical rhinoplasty aids in informed decision-making and efficient patient care.

Dexmedetomidine versus remifentanil in nasal surgery: a systematic review and meta-analysis.

BACKGROUND: Nasal surgeries, addressing anatomical variations for form and function, require careful anesthesia administration, including dexmedetomidine and remifentanil. This meta-analysis evaluates their safety and efficacy variations in nasal surgeries, emphasizing patient comfort and optimal outcomes. METHODS: Four electronic databases (PubMed, Scopus, Web of Science, and CINAHL Complete) were searched for records in English. Studies that measure the effect of dexmedetomidine versus remifentanil on patients underwent nasal surgery were included. The Cochrane Collaboration's tool was used to assess the quality of the included studies. A random-effect model was preferred and statistical analysis was performed by Stata software version 17. RESULTS: Out of an initial pool of 63 articles, five studies were selected for this analysis. All of these chosen studies were Randomized Controlled Trials (RCTs). The meta-analysis involved a total of 302 participants, with 152 in the remifentanil group and 150 in the dexmedetomidine group. The analysis aimed to compare the effects of Dexmedetomidine and Remifentanil on heart rate (HR) and mean arterial pressure (MAP) during surgery. Both groups exhibited similar MAP and HR, with the exception of a slightly lower HR in the remifentanil group at the 15th minute of surgery (Standardized Mean Difference: -0.24 [-0.83, 0.34]). Furthermore, when evaluating the impact of these medications on post-surgery outcomes, including pain levels, the use of pain relief medications, patient-surgeon satisfaction, agitation scores, and recovery time, no significant differences were observed between the two medications in any of these aspects. CONCLUSION: In summary, the study compared Dexmedetomidine and Remifentanil in nasal surgeries anesthesia. No significant differences were found in heart rate, blood pressure, satisfaction, pain, agitation, or recovery time. The study had limitations, and future research should establish standardized protocols and consider various surgical factors.

Effects of nasoalveolar molding on nasolabial aesthetics in patients with cleft lip and palate during pre-adolescence: A systematic review and meta-analysis of retrospective studies.

This study aims to analyze long-term effects of nasoalveolar molding (NAM) as a part of cleft primary management protocols on nasolabial aesthetics for patients with non-syndromic cleft lip and palate by conducting a systematic review and meta-analysis. Six electronic databases and two journals were searched up to July 2023. Studies comparing nasolabial outcomes between NAM and non-NAM protocols were selected for further analysis. Nasolabial aesthetics were the outcome of interest. Data extraction, methodological quality assessment, risk of bias assessment, meta-analysis and subgroup analysis were performed. Seven retrospective cohort studies were selected for a qualitative review and four for a quantitative analysis. The risk of bias assessment was moderate for most studies. Only studies utilizing the Asher-McDade rating (AMR) were included for meta-analyses. The protocols with NAM exhibited a significantly lower AMR score for vermillion border than other protocols. AMR scores for nasal form and nasal symmetry from protocols with NAM were significantly lower than protocols without any pre-surgical infant orthopaedics (PSIO) but not significantly different from protocols with other PSIO techniques. The AMR score for nasolabial profile from protocols with NAM was not significantly different from other protocols. However, subgroup analysis demonstrated that protocol combining NAM and primary rhinoplasty significantly lowered AMR scores for nasal form, nasal symmetry and nasolabial profile. For patients with unilateral cleft lip with or without palate (UCLP), this study found that a protocol combining NAM and primary rhinoplasty improved nasolabial outcomes while a protocol with NAM alone offered only limited benefits. For patients with BCLP, the available evidence remains inconclusive. Performing NAM in combination with primary rhinoplasty improves nasolabial aesthetics in patients with UCLP. PROSPERO (CRD4202128384).

Nasolabial morphological changes in patients with unilateral cleft lip and palate using a Korat-modified nasoalveolar moulding appliance with primary correction.

OBJECTIVE: The objective of this study is to measure the morphological changes of the nose and lip in patients with unilateral cleft lip and palate before and after cheiloplasty with primary rhinoplasty (primary correction) in conjunction with Korat-NAM usage. DESIGN: Longitudinal cohort study. SETTING: Cleft Center Maharat Nakhon Ratchasima Hospital, Nakhon Ratchasima, Thailand. SUBJECTS: Twenty-six patients with unilateral cleft lip and palate. INTERVENTIONS: Control group: only active obturator before primary correction. Experimental group: an active obturator and Korat-NAM I before primary correction. A customized endotracheal tube was retained in the nostril for 3 weeks before switching to Korat-NAM II for 1 year. MAIN OUTCOME MEASURES: Six measurements comprising nostril rim length, nostril height, nostril sill width, columella angle, vertical lip height, and horizontal lip length were measured from the patients' photographs. All measurements, except the columella angle, were reported as the cleft side/non-cleft side value ratio. Measurements were taken at the initial appointment, immediately before, 3 weeks after, and 1 year after primary correction. RESULTS: Nostril rim length ratio, nostril height ratio, nostril sill width ratio, columella angle on the cleft side, and vertical lip height ratio were improved using Korat-NAM before and 3 weeks after primary correction. Nostril rim length and height ratios were significantly better than the control group. CONCLUSIONS: Korat-NAM improved nose and lip morphology before primary correction. An overcorrection improved the nose and lip morphology on the cleft side. The nostril rim length and vertical lip height on the cleft side also improved with Korat-NAM II 1 year after primary correction.

U shaped costal cartilage resection to reduce donor site morbidity.

OBJECTIVE: The aim of our study is to reduce the complications of pain and chest wall deformity by modifying conventional costal cartilage graft harvesting. METHOD: In this method while the superior part of the costal cartilage is removed completely, medial, lateral, and inferior parts are excised incompletely and used as a graft. Hence, continuity of the costal cartilage is maintained inferiorly. RESULTS: Nineteen primary and 28 revision rhinoplasty patients were included in the study. There were no donor site complications in the early postoperative period or during one-year follow-up. CONCLUSION: The modified costal cartilage graft harvesting technique we described is a safe conservative surgical method.

Use of lateral alar caudal graft to increase nasal tip definition in rhinoplasty.

OBJECTIVE: The aim of this study is to demonstrate use of Lateral Alar Caudal Graft to increase nasal tip definition in primary or revision rhinoplasty cases. METHOD: Lateral Alar Caudal Graft was used in 24 patients who underwent open technique septorhinoplasty between 2019 and 2023 years. Fourteen of the patients were female and 10 were male. This technique was applied in revision or primary cases where the caudal part of the lateral alar crura of the lower lateral cartilage was lower in the vertical plane than the cephalic part. The Lateral Alar Caudal Graft was sutured over the caudal edge of the lateral alar crura of the lower lateral cartilage. RESULT: The mean age of the patients was 23. The mean follow-up time of the patients was between 6 and 18 months. No complications were observed due to this technique. Satisfactory results were obtained in the postoperative period after surgery. CONCLUSION: We have successfully demonstrated that in primary or revision rhinoplasty cases, nasal tip definition will be enhanced by positioning the caudal level of the lateral alar crura of the lower lateral cartilage higher than the cephalic level using an onlay lateral alar crural graft and eliminated the need for alar rim graft.

Clinical and surgical factors associated with opioid refill rates following septorhinoplasty.

BACKGROUND: Septorhinoplasty is one the most common class of procedures performed worldwide, and opioids are frequently prescribed for post-operative pain [1]. OBJECTIVE: The objective of this study was to examine the rate of post-operative opioid prescription refills following septorhinoplasty. METHODS: This study was a case-control study of patients who underwent septoplasty and other secondary concomitant procedures. RESULTS: Of the 249 patients included in this study, the majority of patients (94.8%) were prescribed 12 tablets of hydrocodone-acetaminophen 5 mg - 325 mg and only 31 patients (13.3%) received refills. The presence of osteotomies and history of prior opioid use were associated with refills. Nasal valve repair type, open versus closed approach, and presence of autologous auricular cartilage graft harvest were not. DISCUSSION: Our study highlights factors that surgeons should consider when prescribing opioids after septorhinoplasty. Twelve tablets of an opioid are likely sufficient for the majority of patients, but if osteotomies are performed or the patient has a history of prior opioid use, more may be indicated to avoid the need for refills. Additional narcotics are not necessary for an open approach or for patients in which auricular cartilage is needed.

Versatile vertical alar resection technique for positioning of the nasal tip.

BACKGROUND: In rhinoplasty, it is very important to adjust the rotation and projection of the tip together harmoniously with the nasal dorsum and face to achieve pleasing results. OBJECTIVE: In this study, our aim is to describe a new modification of the vertical alar resection technique that can effectively regulate nasal tip projection and rotation. MATERIALS AND METHODS: Versatile vertical alar resection (V-VAR) technique was applied to 14 primary and 9 revision rhinoplasty cases with highly projected nasal tip. V-VAR technique consists of three steps. In the first step, the original dome point was marked. In patients with high tip projection and caudal rotation, resection was performed from the lateral crus of the original dome. In patients with high tip projection and cephalic rotation, resection was performed from the medial crus of the original dome. In patients with high nasal tip projection but adequate rotation, an equal amount of resections were performed from both the medial crus and lateral crus of the original dome. The patients were followed in average 18 months (between 12 and 24 months). RESULTS: The desired type of rotation and projection was achieved utilizing V-VAR technique in all patients. All patients had satisfactory esthetic results. CONCLUSIONS: In highly projected nasal tips, the height can be reduced using the proposed V-VAR technique. Rotation in the nasal tip region was maintained, increased or decreased in accordance with the esthetic aims.

Deformity, etiology, solution, sequence (DESS): Facial analysis in rhinoplasty.

PURPOSE: Rhinoplasty is amongst the most challenging surgeries to perfect and can take decades. This process begins during residency; however, residents often have limited exposure to rhinoplasty during their training and lack a standardized method for systematically analyzing and formulating a surgical plan. The DESS (Deformity, Etiology, Solution, Sequence) is a novel educational format for residents that serves to increase their pre-operative comfort with the surgical evaluation and intraoperative planning for a rhinoplasty. MATERIALS AND METHODS: A qualitative study performed at a tertiary academic institution with an otolaryngology residency program evaluating three consecutive residency classes comprised of four residents per class. A 9-item questionnaire was distributed to measure change in resident comfort after utilizing the DESS during their facial plastics rotation. Questionnaire responses highlighted resident comfort with facial nasal analysis, identifying deformities, suggesting surgical maneuvers, and synthesizing a comprehensive surgical plan. RESULTS: Ten of the twelve residents surveyed responded. Of those that responded, comfort in facial nasal analysis, identification of common nasal deformities, surgical planning, and development of an overall surgical plan were significantly improved after completion of the facial plastic rotation. These residents largely attributed their success to the systematic educational format, with an average score of 4.8/5.0 (SD 0.42). CONCLUSION: While rhinoplasty is a challenging artform to master, systematic approaches to analysis and operative planning are vital for teaching and guiding residents. Through this novel methodology, residents display significant improvement in their comfort with facial nasal analysis and overall surgical preparation.

Cog graft, a new septal extension graft for designing nasal tip rotation and projection in rhinoplasty.

BACKGROUND: Adjusting the nasal tip rotation and tip projection according to the patient's face and wishes is a very important stage in rhinoplasty with the use of a cog graft positioning the tip point in the appropriate place is possible by adjusting the nose length, tip projection and tip rotation together. OBJECTIVE: The aim of this study is to facilitate positioning the tip rotation and projection in the appropriate place according to the patient's needs in rhinoplasty with Cog graft. MATERIALS AND METHODS: Cog graft was applied in 32 patients who underwent rhinoplasty. Cog graft was prepared from costal cartilage in 10 patients and from septal cartilage in 22 patients. Cog graft was prepared by shaping the superior edge of the septal extension graft like a gear wheel. It is fixed to provide desired projection to the caudal septum. In the position where rotation and projection are evaluated adequately, the graft is fixed with sutures. They were followed in average 18 months (between 6 and 24 months). RESULTS: Twenty of the patients were primary cases and 12 were revision cases. The targeted rotation and projection results were achieved in all patients. All patients had satisfactory esthetic results. CONCLUSIONS: Cog graft is a useful graft with which we can adjust the nose length, projection and rotation appropriately and in a short time with a single graft.

Evaluating post-rhinoplasty nasal obstruction treatment: The efficacy of VivAer radiofrequency ablation.

PURPOSE: Nasal obstruction is a prevalent issue affecting up to one-third of adults, often requiring surgical intervention. Low-temperature radiofrequency (RF) treatment, specifically VivAer, has emerged as a promising alternative, especially for the treatment of nasal valve collapse (NVC). However, its efficacy in patients with a history of rhinoplasty or nasal valve repair remains unexplored. METHODS: A single-center retrospective chart review was conducted on 37 patients with a history of rhinoplasty or nasal valve repair who underwent VivAer RF treatment. Treatment outcomes were assessed using the Nasal Obstruction Symptom Evaluation (NOSE) scale. The primary outcome was defined as a decrease in NOSE score by at least one severity category or a 20 % reduction in total NOSE score. RESULTS: The study found a statistically significant average reduction in NOSE score of 22.4 points or 36.6 %. Among patients with a positive treatment response (21 patients or 56.8 %), the average NOSE score reduction was 34.7 points or 55.6 %. Repeat RF treatment in non-responders resulted in a 50 % response rate. No significant difference was observed in treatment outcomes based on the type of prior rhinoplasty or NVC. CONCLUSIONS: Temperature-controlled RF treatment with VivAer can effectively alleviate nasal obstruction in patients with a history of rhinoplasty or nasal valve repair, offering a viable alternative to revision surgery. The study also highlights the potential benefit of repeat RF treatment in non-responders. Further research, including randomized controlled trials, is needed to validate these promising results and expand the treatment options for this complex patient population.

An examination of antibiotic administration in septorhinoplasty: A systematic review and meta-analysis.

PURPOSE: Septoplasty and rhinoplasty are common otolaryngological procedures, often combined as septorhinoplasty (SRP), offering aesthetic and functional benefits. These surgeries are believed to potentially risk postoperative infections due to natural bacterial flora in the nares. This study evaluates the effectiveness of prophylactic antibiotics in reducing post-surgical infection complications. MATERIALS AND METHODS: A systematic review was conducted using PubMed, Cochrane, and Web of Science, adhering to PRISMA guidelines, focusing on antibiotic use in septoplasty, rhinoplasty, and SRP. The study included randomized control trials, single/double-blind studies, retrospective chart reviews, and prospective cohort studies, excluding pediatric, non-human research, or studies with inaccessible data. Postoperative infection rates were analyzed utilizing R software as a form of Statistic. RESULTS: From 697 articles, 15 studies were chosen for meta-analysis, involving 2225 patients, with 1274 receiving prophylactic antibiotics and 951 as controls. The meta-analysis indicated an odds ratio of 0.65 (95 % CI: [0.23, 1.89]), showing no significant protective effect of prophylactic antibiotics. DISCUSSION: The study found no significant infection rate reduction with prophylactic antibiotic use. Notable were inconsistencies in study designs, antibiotic administration timing, and varied surgical practices. Antibiotic use risks were considered. Study limitations include potential biases and the retrospective nature of many studies. CONCLUSIONS: This review and meta-analysis found no substantial evidence supporting prophylactic antibiotics' effectiveness in reducing postoperative infection rates in septoplasty, rhinoplasty, and SRP, indicating a need to reevaluate practices and develop evidence-based guidelines. Future research should focus on comprehensive, randomized control studies, covering both preoperative and postoperative stages.

Dorsal preservation rhinoplasty versus dorsal hump reduction: a randomized prospective study, functional and aesthetic outcomes.

PURPOSE: To compare the functional and esthetic outcomes of dorsal preservation rhinoplasty (DPR) and conventional dorsal hump reduction (DHR) in primary rhinoplasty using patient-reported outcome measures (PROMs) and cone beam computed tomography (CBCT). METHODS: In our randomized prospective double-blinded clinical trial, 50 patients had dorsal nasal hump surgery between October 2021 and November 2022 in our tertiary referral center. All surgeries were done by the same surgeon. Patients were randomly assigned to two groups: Group (A): 25 patients had DPR, and group (B): 25 patients underwent DHR. Pre-operative and post-operative evaluations were conducted using standardized cosmesis and health nasal outcomes survey (SCHNOS), surgeons' rhinoplasty evaluation questionnaire (SREQ), and the CBCT. RESULTS: Following an average of 7.22 ± 2.07 months, patients in both groups reported significantly higher levels of satisfaction, as measured by the SCHNOS score (p < 0.001) and the average of three SREQ scores (p < 0.001). These results align with the radiological analysis, which denoted an overall improvement in the average of both sides' internal nasal valve angle and cross-sectional area after surgery with (p = 0.001) and (p = 0.085), respectively, for the DPR group and with (p = 0.281) and (p = 0.014), respectively, for the DHR group. There was no statistically significant difference in outcomes between both groups (p > 0.05). CONCLUSION: Dorsal preservation is a viable alternative to conventional dorsal hump reduction in primary rhinoplasty. There was no difference in the functional and esthetic outcomes between both techniques, which were verified by radiological investigation.

The effect of subperichondrial dissection on nasal vascularity in septorhinoplasty operations.

PURPOSE: Nasal vascularization runs above the superficial musculoaponeurotic system (SMAS). Perichondrium covers the lower and upper lateral cartilages. In this study, nasal vascularization was compared between subperichondrial and supraperichondrial dissection in closed septorhinoplasty. METHODS: 95 patients and 41 volunteers were included in this study. Supraperichondrial dissection was performed in 48 patients and subperichondrial dissection was performed in 47 patients. To measure blood stream, laser doppler flowmetry (LDF) was used and measurements were done preoperatively, on the postoperative first week; 3rd month and first year. RESULTS: The nasal tip and dorsum measurements were similar between the preoperative and postoperative first year in both groups (p = 1.000). However, in the supraperichondrial dissection group, nasal tip measurements showed a significant increase between the preoperative and third postoperative months (p = 0.011). This increase was accompanied by an increase in the minimal blood stream (p = 0.014). CONCLUSION: Both subperichondrial and supraperichondrial dissection techniques are physiological and result in fewer complications with minimal permanent vascular damage. We believe incision plays a critical role but keeping the perichondrium intact is important for short-term angiogenesis, where long-term results showed no difference in vascularization.

Internal suspension sutures in tip rhinoplasty.

BACKGROUND: Achieving an aesthetically pleasant tip rotation is paramount in rhinoplasty, and these results should be long-lasting. However, even powerful structural techniques such as septal extension grafts can lose rotation over time, as most support depends on the attachment of the graft to the septal cartilage. METHODS: We describe a simple suture technique to strengthen tip support in rhinoplasty, by suspending it to the cartilaginous dorsum, providing additional support to the tip against forces, such as gravity, scar contraction and muscle tension. CONCLUSIONS: Combining traditional techniques with suspension sutures can improve intraoperative results and could enhance long-term tip stability.

Nasal axis lateralization suture technique in crooked nose.

PURPOSE: The aim of the present study was to objectively and subjectively compare the preoperative and postoperative aesthetic and functional outcomes of the correction of crooked noses using a suture technique we call "nasal axis lateralization suture (NALS)". METHOD: A total of 36 patients who had preoperative and postoperative photographs taken and who completed the Rhinoplasty Outcome Evaluation (ROE) questionnaire were included in the study. RESULTS: Crooked noses were divided into two groups: C-shaped (17 patients) and I-shaped (19 patients). The preoperative and postoperative nasal axis angles were 145.3 ± 11.9 and 178.5 ± 3.3, respectively, in C-shaped nasal deviation. In I-shaped nasal deviation, on the other hand, the preoperative nasal axis angle was 8.8 ± 2.8, while the postoperative nasal axis angle was 1.4 ± 2.4. In terms of the ideal axis percentage before and after surgery, a significant difference was found between the C-shaped and I-shaped nasal deviation patient groups (p < 0.05). While there was a significant improvement in both groups in the evaluation based on the ROE questionnaire, satisfaction was much higher in the C-shaped nasal deviation group. In both groups, the ROE values of functional and aesthetic outcomes were significantly different compared to the preoperative values of both groups (p < 0.005). CONCLUSION: NALS can be used as an alternative technique to correct both I-shaped and C-shaped nasal axis deviations.

Long-term effects of the titanium butterfly implant on quality of life: a prospective cohort study.

PURPOSE: Nasal valve insufficiency is known to have a negative impact on both nasal patency and quality of life. The titanium butterfly implant is a surgical treatment proven to have a positive effect on these aspects up to 6 months postoperative. This study aimed to determine the long-term effects of the titanium butterfly implant on nasal obstruction symptoms and quality of life in adult patients with nasal valve insufficiency up to 5 years after procedure. METHODS: A prospective single cohort study was performed including 29 patients that underwent the titanium butterfly implant in one tertiary medical center. Data was obtained before and at least 5 years after surgery using three questionnaires: the Nasal Obstruction and Septoplasty Effectiveness questionnaire, the Sino-Nasal Outcome Test 22 and the Glasgow Benefit Inventory questionnaire. RESULTS: A significant decrease in total NOSE score was seen compared to baseline measurements. The SNOT-22 scores also showed a significant decrease, whereas the GBI scores showed no significant changes at the late follow-up. CONCLUSION: Seven years after placement the titanium butterfly implant still has a statistically significant improvement on otorhinologic-related quality of life compared to preoperative measurements.

Sensory Changes in Nasal Subunits Following Open and Closed Rhinoplasty: A Randomized Controlled Trial.

BACKGROUND: Skin sensation changes are common after rhinoplasty and can be troublesome for patients postoperatively. The closed technique may be considered as causing less sensory loss compared to the open technique due to its conservative approach, minimal dissection and low tissue damage potential. A randomized study was planned to compare the sensory changes in the subunits of the nasal skin caused by the two main methods using objective and subjective parameters. METHODS: In the analysis of the patients, the nose was divided into seven subunits: nasion, rhinion, nasal tip, left alar wing, right alar wing, infratip lobule and columella base. Evaluations were done preoperatively and at the first, third, sixth and twelfth months postoperatively. Objective sensory evaluations were done using the Semmes-Weinstein monofilament test. The subjective sensory changes of each nasal unit were subjectively evaluated by the patients on a three-point Likert scale. RESULTS: Both objective and subjective evaluations showed a statistically significant decrease in sensation in the nasal tip and infratip lobule in the open group one month after surgery. In the closed group, no significant differences were observed between the preoperative and postoperative sensory values for nasal subunits across all periods. CONCLUSION: While a decrease in sensation was observed in the tip and infratip lobule in the open technique by the first month postoperatively, this loss of sensation returned to a normal level by the third month. In the closed technique, however, no significant loss of sensation was detected in the postoperative period. In light of our findings, surgeons can have a better insight into postoperative sensory changes in the subunits of nasal skin which makes them more confident and reassuring when there are concerns regarding altered sensation after rhinoplasty. Level of Evidence II 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 .

Limited Incision Rhinoplasty: An Approach for All Primary and Revision Cases.

INTRODUCTION: Rhinoplasty was one of the most frequently performed aesthetic surgeries in the USA in 2022. Traditionally, the open approach has been preferred by the majority of surgeons often due to familiarity and ease of visualization. However, patient interest in closed and preservation rhinoplasty is driving a resurgence in the popularity of endonasal techniques. We present a series of 100 consecutive endonasal primary and revision rhinoplasty cases using bilateral isolated modified rim incisions. METHODS: One-hundred consecutive patients underwent closed rhinoplasty via isolated modified rim incisions at a single-surgeon private practice. The senior author performs 100% endonasal rhinoplasty. A retrospective chart review was performed from 06/25/20 to 09/21/22. Information on demographics, complications, and need for revision was collected. RESULTS: Eighty-four patients underwent primary rhinoplasty, 11 underwent secondary rhinoplasty, 4 underwent tertiary rhinoplasty, and 1 underwent quaternary rhinoplasty. Isolated modified rim incisions were used in all cases except in cases of septoplasty when a unilateral Killian incision was added, or in cases of lateral osteotomy when vestibular stab incisions were added. Post-operatively, six (6.0%) patients required revision, all of which were performed under local anesthesia. CONCLUSION: Limited incision rhinoplasty is a reliable surgical approach that produces predictable results with a low revision rate. This technique is highly effective in minimizing soft tissue disruption to ensure safe, reliable, and effective outcomes in primary and revision rhinoplasty. It is an easier technique to learn compared to traditional endonasal and even arguably open rhinoplasty, thus lending itself to widespread adoption especially among novice rhinoplasty surgeons. Level of Evidence IV 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 .

The "Keystone Angle": Geometry in Preservation Rhinoplasty.

Rhinoplasty outcome may depend on different factors and bony dorsum shape has proven to significantly influence the lateral view result. The "Keystone angle" corresponds to the osseocartilaginous angle formed between bony and cartilaginous dorsum. Usually, the "V" shaped bony dorsum is characterized by a more acute "Keystone angle" compared to the "S" shaped bony dorsum. To achieve the ideal dorsum flatness, corresponding to a "Keystone angle" of 180°, different techniques may be used. Bearing these concepts in mind we suggest that preoperative assessment of the "Keystone angle" can guide the choice of the most appropriate technique for each patient. 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 .