Cleft Lip Nose Research Articles

Case report: Two cases of Cleft rhinoplasty

The correction of cleft lip nose deformity remains a great challenge for any cleft surgeon. The nose is a prominent part of the face, and any cleft lip repair directs the beholders’ eyes from the deformed lip to the deformed nose, Controversies exist on the timing of rhinoplasty in cleft lip patients and is categorized as primary rhinoplasty performed at the time of cleft lip repair, intermediate rhinoplasty at the age of 5–11 years and definitive rhinoplasty. This article presents two cases of unilateral nasal cleft in two adults treated by secondary rhinoplasty using an open technique. The primary deformity is an imbalance between abnormal muscle insertion and maxillary skeletal hypoplasia. The general characteristics of this deformity are a very short columella, downward rotation of the tip and diminished nasal projection, and treatment of this depressed and hypoplastic bony scaffolding is the secret to successful secondary rhinoplasty. Proponents of delayed nasal repair suggest that altering the cartilages in early nasal repair at the time of lip repair would complicate future corrective nasal surgeries if the primary repair would prove unsatisfactory. However, we know that repositioning the wing cartilage at the same time as closing the lip respects nasal growth by using a rigorous technique and control of scars The aim of cleft lip rhinoplasty is both aesthetic and functional: to obtain a normal nose with nasal breathing.

Conditional heterozygous loss of kit receptor tyrosine kinase in neural crest cell lineage is associated with midline cleft lip and bifid nose deformity

ObjectivesThe receptor tyrosine kinase Kit is expressed in cells derived from the trunk neural crest (NC), such as melanocytes; however, its role in cranial NC cell development is not fully understood. MethodsWe investigated the effects of the heterozygous loss of Kit in NC cells during embryonic development by mating Kit2lox/+ mice with Wnt1-Cre mice to produce Wnt1-Cre; Kit2lox/+ embryos. In addition, Wnt1-Cre mice were mated with Rosa26R-yellow fluorescent protein (YFP) mice to visualize the tissue regions expressing Cre recombinase. Histological studies of the craniofacial regions of these mice were performed using samples from embryonic day (E) 12.5 and postnatal day (P) 1. Cellular apoptosis and proliferation were both analyzed through the immunostaining of tissue sections collected on E13.5 and E14.5 using anti-cleaved caspase 3 (CC3) to detect apoptosis and anti-Ki67 to detect proliferation. Cells from YFP-positive tissue regions of the facial areas of Wnt1-Cre; Kit+/+; Rosa26R–YFP embryos and Wnt1-Cre; Kit2lox/+; Rosa26R–YFP embryos collected on E12.5 and E15.5 were cultured and evaluated for cell proliferation. ResultsCompared with control littermates, Wnt1-Cre; Kit2lox/+ embryos exhibited midline cleft lip and bifid nose deformities. Substantial early (P1) postnatal lethality was observed in Wnt1-Cre; Kit2lox/+ mice, with none surviving to 3 weeks of age. YFP-positive cells from the maxillary regions of Wnt1-Cre; Kit2lox/+; Rosa26R–YFP embryos exhibited defective cell growth and self-renewal in vitro. ConclusionConditional heterozygous loss of Kit in Wnt1-Cre; Kit2lox/+ embryos is associated with craniofacial dysplasia and exhibit defective NC development in vitro and in vivo.

Long-Term Three-Dimensional Morphometric Outcome Study of Nasal Bone in Cleft Patients.

Cleft lip nose deformities are characterized by underlying features in the bony skeleton as well as the soft tissues; however, no previous study has focused on the evaluation of the nasal bone. The aim of this study was to compare nasal bone features among adult patients with unilateral cleft lip with or without cleft palate, those with bilateral cleft lip and palate, and controls. Included in this retrospective study were patients aged ≥16 years with nonsyndromic cleft who underwent long-term orthodontic treatment and controls aged 18-45 years who underwent surgery for jaw deformities at Keio University Hospital. Piriform width, nasal width, and nasomaxillary angle values measured on CT were compared among the groups using the Wilcoxon rank sum test. Nine patients had unilateral cleft lip and alveolar cleft, 19 had unilateral cleft lip and cleft palate, and 14 had bilateral cleft lip and palate (BCLCP). There were 18 controls. Mean piriform width and mean nasomaxillary angle were significantly greater in the BCLCP group than the control group (20.1±2.54mm versus 18.8±1.35mm, P<0.05; and 105.8±8.13 degrees versus 100.4±7.95 degrees, P<0.05, respectively). There was no significant difference in mean nasal width among the groups. Nasal bone morphology was not affected by initial cleft lip alone or by the presence or absence of cleft palate. Patients with bilateral cleft lip and palate have a wider and lower nose than those without cleft deformity and might benefit more from reduction of the bony nasal width than from treatment of the soft tissues.

Long-term Results and Efficacy of Intermediate Rhinoplasty in Patients With Unilateral Cleft Lip: A Single Surgeon's Experience.

Intermediate rhinoplasty, the correction of cleft lip nose deformities, is performed between the time of primary and secondary rhinoplasties, which is at ~6 years of age. Although intermediate rhinoplasty reduces psychological stress in school-aged children through improvements in appearance, studies on intermediate rhinoplasty are scarce. Hence, in this study, we aimed to evaluate the long-term outcomes of intermediate rhinoplasty in patients with unilateral cleft lip. Twenty-three patients with unilateral cleft lip who underwent intermediate rhinoplasty without primary rhinoplasty from 1997 to 2004 were enrolled in this retrospective study. They were categorized into total, male, and female groups. Photogrammetric analysis of 9 proportional, 5 angular, and 6 nostril-related parameters was performed using photographs that were taken after skeletal maturity had been reached; these parameters were compared with those of normal controls. The cleft group had significantly lower dome-to-columellar ratio, nasal sill ratio, labial-columellar angle, nostril width ratio, nostril height (base) ratio, nostril one-fourth medial part ratio, and nostril area ratio measurement and significantly higher alar width/mouth width ratio, columella height/alar width ratio, nasal tip protrusion/alar base width ratio, nasal dorsum angle, and nostril dimension in the cleft side values than the control group. After intermediate rhinoplasty, significant nasal improvement was achieved, including sufficient nasal tip projection, nasal height, nasal protrusion, and a relatively symmetric nasal tip without tip deviation. Intermediate rhinoplasty may contribute to reducing the psychosocial stress of school-aged children with unilateral cleft lip.

Radiographic Study of the Nasal Valve in Different CT Evaluation Method in Asian Patients with Unilateral Cleft Lip Nose.

It was the first study to apply and compare two CT methods to assess the validity and clinical significance of structural alterations of the nasal valve in patients with cleft lip nose for assessing nasal ventilation disturbance. The study collected data from the NOSE score, as well as internal nasal valve area, internal nasal valve angle, external nasal valve area, and septal deviation angle, to evaluate the differences and correlations between those factors in patients with cleft lip and nose. There were significant differences among INV transverse and coronal area and INV angle on different axial standardized planes between clefted side and non-clefted side. There were statistically significant negative correlations between NOSE scores and those indicators of standard plane and acoustic-axis standardized coronal plane. NOSE score and NSD angle were the indicators of significant differences in the measured data of different complications groups (p = 0.002, p = 0.017). The correlation comparison showed that two standardized CT imaging transverse planes have similar correlations in NOSE score, NSD angle, and complications. The results of the two CT evaluation methods showed that there was a significant difference in nasal valve area on the cleft and non-cleft sides, which was significantly associated with nasal ventilation disturbance. The CT evaluation method based on standard axial 3D reconstruction is more convenient to use in the clinic, can be used for pre-surgical evaluation of nasal repair in patients with secondary nasal deformities of unilateral cleft lip, and is valuable for treatment. 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 .

Utilization of images and three-dimensional custom-made nostril retainer fabricate for patients with cleft lip and cleft lip nose deformities at Siriraj Hospital: preliminary phase

A prospective study utilizing image analysis to assess nostril openings in post-operative patients with cleft lip and cleft lip nose deformities. This preliminary study seeks to employ two-dimensional (2D) images to fabricate a custom-made nostril retainer. This study was performed at Faculty of Medicine, Siriraj Hospital, Mahidol University, Thailand. This study included 30 healthy volunteers and 15 patients with cleft lip and cleft lip nose deformities. The nostril opening width and height for all participants were measured, and photographs were taken. An image analysis application was used to fabricate a three-dimensional (3D) custom-made nostril retainer. The mean differences between the direct measurements of the nostril aperture and the measurements obtained through the program did not exceed 2 mm in terms of nostril height, width, or columella. Two-dimensional photographs can be used to create a custom-made, three-dimensional nostril retainer. This retainer allows post-operative patients to maintain their nares without needing to visit the hospital, thereby reducing the cost of care.

Mixed Dentition Period Follow-up of Primary Unilateral Cleft Nose Deformity Repair.

Recently, there has been an increased acceptance of the primary cleft rhinoplasty providing acceptable outcomes. Nose reconstruction, and specifically cleft nose deformity, should be addressed based on this philosophy. The purpose of this study was to evaluate surgical outcomes during the mixed dentition period after primary surgery to address unilateral cleft lip nose deformity based on the proposed technique. This is a retrospective cohort study. Thirty-two primary complete unilateral cleft lip patients were operated on by a single surgeon using the V-Y-Z cleft rhinoplasty. This method combines a composite V-Y advancement flap with lateral Z-plasty. Data collection was accomplished by evaluation of nasal symmetry through anthropometric measurements performed under general anesthesia during primary cleft palatoplasty and alveolar bone graft. The outcomes were evaluated through anthropometric measurements of the repaired nose during the mixed dentition period of follow-up, and no type of presurgical management was performed for any of the patients. Total nasal symmetry has been observed in 34.37% of patients at 7 years or more and 40.62% at 1-year follow-up. Nonstatistically significant differences were observed during follow-up, and major revision requirement (>3 mm of asymmetry in any of the nose measurements) was observed in 9.37% of patients. The proposed primary cleft rhinoplasty is a good approach to improve nasal appearance in patients with complete unilateral cleft lip and palate.

Let-Down Rhinoplasty in Patients With Cleft Lip Nose.

Rhinoplasty in patients with cleft lip nose (CLN) deformity is challenging. Cleft lip nose deformity primarily affects the nasal tip, columella, nostrils, alar base, floor, and septum. The needs of patients with CLN are quite different from those of patients who undergo primary rhinoplasty. Recently, the dorsal preservation rhinoplasty technique has gained popularity. We applied this technique to patients with CLN deformity to obtain better aesthetic and functional results. Ten consecutive patients with indication for primary CLN reconstruction underwent let-down rhinoplasty. Rhinoplasties were performed using either the closed or open approach, with costal cartilage grafts and full-thickness skin grafts. A rhinoplasty outcome evaluation questionnaire was used to assess the results. Moreover, the use of the same questionnaire in prior patients allowed us to compare results between our previous and new techniques. The study included 6 female and 4 male patients, with ages ranging from 18 to 25 years. Only 1 patient had a history of bilateral cleft lip. Seven patients had a history of left-sided cleft lip, and 2 patients had right-sided cleft lip. Open-approach let-down rhinoplasty with costal cartilage grafts and full-thickness skin grafts was performed in 8 patients, whereas closed-approach let-down rhinoplasty with costal cartilage grafts was performed in 2 patients. Columellar struts and affected-side onlay costal cartilage grafts were used in all patients. All patients reported being satisfied with the let-down rhinoplasty outcome, and none complained of functional problems. However, nostril symmetry was not observed in some patients, particularly in patients who underwent closed-approach rhinoplasty. Combining open approach, full-thickness skin graft, costal cartilage graft, and let-down rhinoplasty shows promising and satisfactory outcomes in patients with CLN. However, further studies are required to confirm this observation.

Septal Reposition during Intermediate Cleft Rhinoplasty: A Second Chance for Correcting Caudal Septal Deviation.

The authors investigated postoperative nasal morphologic changes in patients undergoing secondary correction of cleft-lip nose with septal repositioning and alar cartilage suspension during preschool age. The authors performed a retrospective review of 77 patients who underwent secondary correction of cleft-lip nose. The patients were 5 to 6 years of age and underwent intermediate rhinoplasty by alar cartilage suspension, with or without septal repositioning. They were divided into 2 groups based on time, encompassing septal repositioning (September of 2015 through November of 2017) and control (November of 2009 through August of 2015) groups. The authors performed a photogrammetric comparison by assessing the postoperative nasal morphologic changes using linear and angular measures. The cleft-to-noncleft-side ratio of each parameter was measured for the nostril width and height, nostril area, and caudal septal deviation angle. Among the 77 patients, 43 were selected as the septal repositioning group and 34 as the control group. Evaluation timing was 5.32 ± 0.45 years of age for the preoperative period (T0), 6.57 ± 0.5 years of age for short-term follow-up (T1), and 9.28 ± 0.65 years of age for long-term follow-up (T2). The septal repositioning group showed significantly improved nostril width ratio and caudal septal deviation angle in the T1 and T2 periods. Septal repositioning significantly decreased the nostril area ratio in the T1 and T2 periods due to decreased cleft-side and increased noncleft-side nostril area. The secondary correction of cleft-lip nose with septal repositioning during preschool age offers a second chance to correct nasal appearance by balancing the nostril symmetry and correcting the caudal septal deviation. Therapeutic, III.

Correction of Cleft Lip Nose Deformity With Circular Shape Alar Graft and Block Costal Cartilage.

Secondary deformities of the cleft lip and nose are mainly caused by the long period of craniofacial development and the secondary scarring. Correction of the secondary cleft lip-nose deformity is a complex process that requires both the correction of the soft tissue and skeletal support. The purpose of this study was to present our experience in correcting the secondary unilateral cleft lip-nose deformities with autologous costal cartilage. A retrospective analysis of patients who underwent correction of unilateral cleft nasal deformity with simultaneous rhinoplasty by a senior surgeon from January 2015 to January 2022 was conducted. Preoperative and postoperative measurements of the columellar-labial angle and the inclination of nasal base were conducted to evaluate the surgical outcomes. A total of 54 patients were included in this study according to the inclusion criteria. The mean follow-up period was 4 years (range, 1-7 years). The mean values of the columellar-labial angle were 91.1 ± 9.2 degrees preoperatively and 101.0 ± 5.9 degrees postoperatively. The mean values of the inclination of nasal base were 4.5 ± 1.2 degrees preoperatively and 0.9 ± 0.4 degrees postoperatively. There was a considerable increase in the columellar-labial angle after the surgery (9.9 ± 6.0 degrees; P < 0.01). The inclination of nasal base decreased significantly (3.6 ± 1.1 degrees; P < 0.01). Our approach on correction the secondary clef lip nose through repositioning the muscles by Z-plasty and application of the block cartilage graft and circular shape alar graft has achieved long-term satisfactory results.

UNILATERAL CLEFT NOSE DEFORMITY

INTRODUCTION Cleft lip deformity is a complex 3-dimensional congenital facial deformity which leads to poor functional, aesthetic and social outcomes. METHODOLOGY In order to optimize the aesthetic symmetry of unilateral cleft lip nasal deformity correction, we propose an anatomic technique involving reconstruction and restoration of the cleft side alone and to fashion it akin to the normal side in teh form of a case series. SURGICAL TECHNIQUE 1. All the cases were operated by the open Rhinoplasty approach, using the standard stair step trans-columellar and infracartilaginous incision. In unilateral cleft lip nose deformity, the whole lateral wall of nose including the nasal bone, the upper lateral cartilages and the lower lateral cartilages of the cleft side appears to be imbalanced with respect to the normal side. RESULT Based on the Rhinoplasty Out come Evaluation (ROE) questionnaire, all patients experienced improved appearance of the nose and felt less stigmatization from the society Keywords: Cleft lip deformity, Rhinoplasty, open Rhinoplasty

The Effectiveness of Releasing the Lower Lateral Cartilage Through Intranasal Z-plasty Incision on the Vestibular Web During Secondary Correction of Nasal Deformities in Complete Unilateral Cleft Lip and Palate.

The primary goal in the secondary correction of unilateral cleft lip nose deformity is to achieve symmetry of the nose and nostril. This study aimed to investigate the efficacy of freeing the lower lateral cartilage from the pyriform ligament through an intranasal Z-plasty incision on the vestibular web in adult patients with complete unilateral cleft lip and palate. Thirty-six patients with complete unilateral cleft lip and palate, who underwent open rhinoplasty between August 2014 and December 2021, were identified retrospectively. Five parameters for nose form and nostril symmetry were measured on basal views through 2-dimensional photographic analysis. The patients were divided into subgroups with or without septoplasty. Cleft-to-non-cleft ratios between the Z (13 patients) and non-Z groups (23 patients) were compared using the Mann-Whitney U test. The mean follow-up was 12.9 months (6-31mo). In the Z group, there were significant differences between the preoperative and postoperative values for nostril angulation, regardless of septoplasty (all P <0.05). Despite septoplasty, significant differences in the postoperative changes in nostril angulation were found between the Z and non-Z groups (all P <0.05). Intranasal Z-plasty on the plica vestibularis is an effective technique for releasing the lower lateral cartilage, improving the nostril asymmetry in cleft lip nose deformity.

Postoperative Nasal Conformers in Cleft Rhinoplasty: Are They Efficacious?

Lip and nose symmetry the goal of repair of unilateral cleft lip and different preoperative and postoperative treatments have been developed with this purpose. The objective of this study was to compare 2 techniques used for primary cleft lip nose repair. This is an retrospective study between 2 groups of patients with unilateral cleft lip and palate who underwent primary nasolabial repair either with or without postoperative nasal conformers. Data collection was accomplished by evaluation of nasal symmetry through anthropometric measurements under general anesthesia during primary cleft palate repair. Our comparative study did not find a statistically significant difference regarding percentile indexes of nasal asymmetry between the 2 groups. Major revision requirement (>3mm of asymmetry in any of the nose measurements) was observed in 3.84% of nasal conformer group and 4.65% of the group without nasal conformers. The results obtained from this study provides showed that placement of postoperative nasal conformers did not improve nasal symmetry in patients with unilateral cleft lip and palate. Based on these findings and available scientific evidence, definitive conclusions about the effectiveness of these devices on nasal symmetry after unilateral cleft lip nose repair cannot be drawn.

Poly Lactic-co-Glycolic Acid Absorbable Plate Graft for Secondary Rhinoplasty in Asian Patients with Unilateral Cleft Lip Nose Deformity.

In secondary cleft lip and nasal deformity (CLND) correction, structural grafts are commonly used to control the nasal tip and restore the symmetry of the ala. However, the septal cartilage in Asians often weak and small. Biocompatible absorbable materials are alternatives to autologous grafts. This study assessed the surgical outcomes and complications of poly lactic-co-glycolic acid (PLGA) plate grafts in secondary CLND correction. This study was retrospectively analyzed for patients who underwent secondary rhinoplasty for unilateral CLND correction between March 2015 and November 2020. Using open rhinoplasty, the PLGA plate was grafted as a columellar strut. Clinical photographs taken at the initial (T0) and follow-up visits (T1: short-term, T2: long-term) were analyzed and anthropometric parameters, such as nostril height and width, dome height, and tip height, were measured. Twenty-four patients were included in this study. The mean T1 and T2 periods were 1.0 ± 0.4 and 15.5 ± 3.1 months, respectively. The nostril height ratio increased from 0.78 ± 0.12 at T0 to 0.88 ± 0.08 at T1 and 0.86 ± 0.09 at T2 (p < 0.001; Relapse ratio -2.6 ± 6.7%). The tip height ratio increased from 0.60 ± 0.07 (T0) to 0.66 ± 0.05 (T2) (Relapse ratio -3.7 ± 3.0%). The PLGA plate graft provided stable nasal tip projection and alar symmetry without major complications. It can be a good option for patients lacking available septal and concha cartilages or apprehensive of additional scarring.

Long-Term Outcome of Primary Rhinoplasty with Overcorrection in Patients with Unilateral Cleft Lip: Avoiding Intermediate Rhinoplasty.

No consensus exists regarding the timing or technique of rhinoplasty for correction of the unilateral cleft lip nose deformity, with few studies examining the long-term effects of a single technique. This study appraised the long-term outcomes of primary rhinoplasty using the Tajima technique for overcorrection in a cohort of patients with unilateral cleft lip nose deformity after attaining skeletal maturity. Consecutive nonsyndromic patients with unilateral cleft lip nose deformity ( n = 103) who underwent primary rhinoplasty with overcorrection by a single surgeon between 2000 and 2005 were reviewed. Patients with unilateral cleft lip and nasal deformity who underwent primary rhinoplasty (but with no overcorrection) ( n = 30) and noncleft individuals ( n = 27) were recruited for comparison. Outcomes were assessed through FACE-Q scales evaluating satisfaction with appearance of nose and nostrils (two scales) and computer-based objective photogrammetric analysis of nasal symmetry (nostril height, nostril width, nostril area, alar height, and alar width parameters). Significant differences (all P < 0.001) were observed between the Tajima and non-Tajima groups for all but one photogrammetric nasal parameter (nostril area), with the Tajima group demonstrating closer mean values to the noncleft group. The Tajima and noncleft groups demonstrated no significant difference (all P > 0.05) for scores of FACE-Q nose and nostrils scales. This study indicated that the patients who underwent primary rhinoplasty with overcorrection had improved results with no necessity for intermediate rhinoplasty, emphasizing that the procedure is an effective approach to correct the unilateral cleft nose deformity. Therapeutic, III.

Unilateral cleft nose deformities at adulthood

Secondary rhinoplasty is a challenging procedure, requiring a precise preoperative diagnosis of nasal deformities before correcting them. As there is currently no accepted outcome measurement tool available to assess unilateral cleft lip and palate (UCLP) nose sequelae before secondary rhinoplasty. The goal of this retrospective study is to identify the nose deformities and rate them in an evaluation scale that allows collecting and analyzing cleft nose data. Our retrospective cohort is composed of 29 patients with UCLP, who underwent secondary rhinoplasty between 2010 and 2021 in a cleft center, with a mean age of 23years old. Evaluation of deformities is made from preoperative two-dimensional photography. The assessment photographic tool is a custom-designed scale of 16 items. A binary scoring system is used by two experts to assess nasolabial deformities. The most encountered sequelaes are the alar foot displacement (93%), the enlarged tip (90%) and the nostril horizontalization (86%). The inter-examiner ICC for total rating was calculated at 0.911 and indicated a strong level of reliability that was highly significant (P<0.05). The simplicity, reliability and reproducibility of the proposed assessment system could be interesting for clinicians, in order to diagnose the nasal deformities before surgery, but also to assess postoperative success of a secondary rhinoplasty and thus to compare several surgical techniques.

Three-dimensional nasal forms following unilateral cleft-lip nose correction with mandibular ramus cortical bone augmentation for concaved nasal dorsum

PurposeTo observe the pre- and postoperative three-dimensional (3D) nasal morphologies following mandibular ramus cortical bone augmentation (CBA) for a concaved nasal dorsum in definitive correction of an underdeveloped unilateral cleft lip (UCL) nose. Subjects and MethodsThree Japanese women with complete unilateral cleft lip and palate (UCLP) underwent nose correction using CBA on the flat or concaved nasal dorsum in combination with an extended spreader cartilage graft. The measurement items included the nasal dorsal angle, the nasal tip angle, and the x- and z- axis values of the nasal dorsum ridge and nasal tip points. The results were compared with those of thirteen sex- and age-matched women with complete UCLP who underwent the same nasal correction excluding CBA. Postoperative changes in cortical bone were also observed radiographically. ResultsThe nasal dorsal angle increased and nasal tip angle decreased postoperatively in the patients with CBA, becoming more similar to those of subjects without CBA. Postoperatively, improvement of the lateral nose profile with natural hardness was achieved in three all patients with CBA. 3D analyses of patients with CBA demonstrated an increased height of the nasal dorsum ridge and nasal tip points in the center of the face.Radiological observation revealed remaining transplanted cortical bone, although it became smaller. ConclusionsMandibular ramus cortical bone augmentation may be one of the options for molding up the severely concaved nasal dorsum on definitive correction of an underdeveloped nose in Asian patients with complete UCLP, without damaging other parts of the body.

Surgical design and application of alar cartilage positioning and repositioning in correcting cleft lip nose deformity.

Correction of nasal deformity is integral to modern cleft lip repair, and high risk of postoperative relapse remains a technical hurdle to overcome. The authors previously presented internal fixation of alar cartilage based on Chinese nasal morphology and lateral columella tissue increment for the correction of unilateral cleft nose deformity. Through the application and review of these techniques, the authors developed a new technique named alar cartilage positioning for primary cleft nose correction, or alar cartilage repositioning for secondary cases. Here, we introduce the theoretical foundation and preliminary experience in using this new technique.

Closed Piezo Preservation Rhinoplasty.

The application of piezoelectric instruments (PEIs), which made the work with the nasal pyramid a predictable and controlled stage of rhinoplasty, is still more often related to the open approach. The intranasal approach is constantly associated with standard methods of osteotomies, including percutaneous techniques, which represent certain limitations in working with the bony vault without managing the surface and thickness of its walls and the risk of uncontrolled fractures. The authors apply PEIs for osteotomies and reshaping of the nasal pyramid through the closed approach with preservation rhinoplasty and complete subperichondrial and subperiosteal dissection. The technique of working with the nasal pyramid using PEIs with the closed approach is described. The patients were grouped according to the methods of nasal pyramid surgery-Push Down (PD), Let Down (LD) with Rhinosculpture (Rs), or the combinations. The results of the surgeries with the application of PEIs on 134 patients were retrospectively analyzed before the surgery and 12 months after it according to the "Rhinoplasty Outcome Evaluation" (ROE). The average age of the patients was 28, 125 were female and 9 were male. The patients' satisfaction was excellent in 96% of all the cases included. There were two cases with residual humps and four cases with residual asymmetries in cases of severe deviations. Via intranasal approach, it is possible to use PEIs for managing the bony vault in primary rhinoplasty. The limitations for this technique are underdevelopment of the nasal dorsum, cleft lip nose situations, post-traumatic and previous rhinoplasty cases. 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 .

Short-term nasal symmetry repaired by force-balanced muscular reconstruction technique.

This study aimed to compare the postoperative outcome of the new and classical muscular reconstruction technique combined with nasal internal-fixation method for secondary deformity post unilateral cleft lip repair. A rationale is provided for the further surgical improvement of secondary deformities. Sixty patients aged 4-18 years with secondary unilateral cleft lip-nose deformity were involved in this research. The deformities of 28 patients were repaired using the muscular force balance technique through nasal internal fixation method, and 32 were repaired using classical muscular reconstruction technique. Two-dimensional analysis was used to evaluate the nose-lip morphology of pre- and post-operative patients through standardized photographs seven days after surgery. Compared with preoperative nasal morphology in the muscular force balance technique group, the 7-days postoperative results of this group showed the significantly improved short-term outcomes in the correction of columellar deflection, alar rim angle, nasal shape, and the symmetry of alar base width, nostril width, nostril height, alar rim angle (P<0.05). The new muscular reconstruction technique with nasal internal-fixation method has a significant effect on nasal repair.