Anatomical and Ultrasonographic Analyses of the Levator Labii Superioris Alaeque Nasi Muscle at the Level of the Nasal Ala / Análisis Anatómico y Ecográfico del Músculo Elevador Nasolabial a Nivel del Ala Nasal

SUMMARY: We aimed to determine the width of the levator labii superioris alaeque nasi muscle (LLSAN) at the level of the nasal ala through cadaveric dissections and ultrasonography (US), to provide essential anatomical information for use during both invasive and noninvasive procedures in the nasal ala region. The LLSAN was investigated in the 40 hemifaces of 20 Korean cadavers, comprising 10 males and 10 females with a mean age of 73.6 years. The LLSAN width of the 40 specimens at the level of the midpoint of the nasal ala was 5.02±2.35 mm (mean±standard deviation), and ranged from 1.45 mm to 10.11 mm. The LLSAN widths were 5.96±2.36 mm and 3.93±1.89 mm in males and females, respectively, with ranges of 2.40-10.11 mm and 1.45-6.96 mm, respectively. The LLSAN widths on the left and right sides were 4.77±2.72 mm and 5.26±1.99 mm, respectively. The proportions of the LLSAN fibers inserting into the nasal ala and upper lip were similar in 13 specimens (32.5 %), while more fibers inserted into the nasal ala in 11 specimens (27.5 %) and more fibers inserted fibers of the LLSAN into the upper lip in 16 specimens (40 %). When clinicians need to target or avoid the LLSAN, the present width and range data can be helpful for ensuring the efficacy and safely of both invasive and noninvasive procedures. In addition, the possibility of asymmetry in the width of the LLSAN in the nasal ala region should be confirmed by US before performing such procedures.

Nuestro objetivo fue determinar el ancho del músculo elevador nasolabial (MENL) a nivel del ala nasal mediante disecciones cadavéricas y ecografía, para proporcionar información anatómica esencial, para su uso durante procedimientos invasivos y no invasivos, en la región del ala nasal. El MENL se estudió en 40 hemicaras de 20 cadáveres coreanos (10 hombres y 10 mujeres) con una edad media de 73,6 años. El ancho de MENL de las 40 muestras a nivel del punto medio del ala nasal fue de 5,02 ± 2,35 mm (media ± desviación estándar) y osciló entre 1,45 mm y 10,11 mm. Los anchos de MENL fueron 5,96 ± 2,36 mm y 3,93 ± 1,89 mm en hombres y mujeres, respectivamente, con rangos de 2,40 a 10,11 mm y 1,45 a 6,96 mm, respec- tivamente. Los anchos de MENL en los lados izquierdo y derecho fueron 4,77 ± 2,72 mm y 5,26 ± 1,99 mm, respectivamente. Las proporciones de fibras de MENL que se insertaban en el ala nasal y en el labio superior fueron similares en 13 muestras (32,5 %), mientras que se insertaron más fibras en el ala nasal en 11 muestras (27,5 %) y además, se insertaron fibras de MENL en el labio superior en 16 ejemplares (40 %). Cuando los médicos necesitan apuntar o evitar el MENL, los datos actuales de ancho y rango pueden ser útiles para garantizar la eficacia y seguridad de los procedimientos, tanto invasivos como no invasivos. Además, la ecografía puede ser utilizada para confirmar una posible asimetría en el ancho del MENL en la región del ala nasal antes de realizar los procedimientos.

Asociación entre la inclinación sagital del incisivo central superior y el ángulo nasolabial en ortodoncia

Objetivo: determinar si existe asociación entre la inclinación del incisivo central superior y el ángulo naso-labial de Legan. Materiales y métodos: se utilizaron las telerradiografías laterales de cráneo de 20 pacientes entre 18 y 39 años, obtenidas al inicio y final de su tratamiento ortodóncico, para un análisis cefalométrico. El total de medidas obtenidas se ordenó en dos tiempos. Tiempo 1 (T1) incluyó la medición del ángulo plano biespinal-eje mayor del incisivo superior (AiT1) y del ángulo naso-labial (AnlT1) en las radiografías tomadas previo al tratamiento y tiempo 2 (T2) incluyó la medición de los mismos ángulos en las radiografías tomadas al finalizar el tratamiento (AiT2 y AnlT2 respectivamente). Los datos obtenidos fueron tabulados y analizados estadísticamente. Resultados: la muestra presentó distribución normal, por lo que se aplicó el test de correlación de Pearson, para determinar si existía asociación entre ambas variables (Ai y Anl) en T1 y T2, obteniendo como resultado un valor de R=0,5. Conclusión: no existe asociación estadística entre la variación en la inclinación del incisivo central superior y el Ángulo naso-labial de Legan.

Aim: to determine if there is an association between the inclination of the upper central incisor and the nasolabial Legan angle. Materials and methods: lateral head radiographs of 20 patients between 18 and 39 years old, obtained at the beginning and end of their orthodontic treatment, were used for a cephalometric analysis. The total of measurements obtained was ordered in two times. Time 1 (T1) included the measurement of the bispinal plane angle-major axis of the upper incisor (AiT1) and the nasolabial angle (AnlT1) in the radiographs taken before treatment and time 2 (T2) included the measurement of the same angles, in the radiographs taken at the end of the treatment (AiT2 and AnlT2 respectively). The data obtained were tabulated and statistically analyzed. Results: the sample presented a normal distribution. So, the Pearson correlation test was applied to determine if there was an association between both variables (Ai and Anl) in T1 and T2, obtaining a value of R=0.5 as a result. Conclusion: there is no statistical association between the variation in the inclination of the upper central incisor and the nasolabial Angle of Legan.

One-year clinical observation of muscular force balance reconstruction technique for the correction of secondary nasal malformation after cleft lip surgery / 华西口腔医学杂志

OBJECTIVES@#The long-term effect of muscular force balance reconstruction technique combined with intranasal fixation for correcting secondary nasolabial deformity after unilateral cleft lip was evaluated. The aim was to provide a basis for further improving the surgical treatment effect of secondary nasolabial deformity of acleft lip.@*METHODS@#A total of 40 patients aged 4-28 years with secondary nasal deformity and unilateral cleft lip were selected as research subjects. The two-dimensional photo measurement analysis method was used in comparing the surgical results before and immediately after the operation (7 d) and 1 year after the operation.@*RESULTS@#Columellar angle, nostril height ratio (NHR), alar rim angle, alar rim angle ratio, and nostril shape (NS) increased dimmediately after the operation, whereas alar base width ratio (ABWR) and nostril width ratio decreased (NHR) immediately after the operation (P<0.01). The ABWR, NHR, and NS immediately after the operation were not significantly different from those 1 year after the operation (P>0.05).@*CONCLUSIONS@#Muscular force balance reconstruction technique combined with intranasal fixation is effective in the repair of unilateral secondary nasolabial deformity, and stable results can be obtained 1 year after surgery.

Analysis of smile exposure and related factors in young people aged 20 to 30 with convex facial profiles / 口腔疾病防治

Objective @#To study smile exposure in 20- to 30-year-olds with convex facial profiles and to explore the correlation between smile exposure and other aesthetic indicators, as well as psychological factors. @*Methods @# This study obtained ethical approval from the hospital. After they gave informed consent and portrait authorization, 80 young subjects aged 20-30 with convex facial profiles had their dynamic postural smile and spontaneous laughter recorded. The videos were imported into Photoshop CC software, key frames were selected, and the smile exposure was measured. The three-dimensional information of the subject's face in a resting state was obtained, the relevant aesthetic indicators were measured, and the satisfaction degree of their smile and laughter were evaluated. Correlation analysis was conducted for smile exposure and the relevant aesthetic indicators and subjective psychological evaluation.@*Results @# There were statistically significant differences in smile exposure, smile patterns, relevant aesthetic indicators and subjective psychological evaluation between males and females aged 20 to 30 (P<0.05). There was a large gap between males and females in the average opening degree when laughing, males having 5 times that of females, while the average gingival exposure height of the maxillary central incisor in males was approximately 1/2 of that in females. The average nasolabial angle of males (99.80° ± 7.96°) was larger than that of females (96.26° ± 7.31°) (P<0.05), while the average ratio of upper lip length to the length of the lower 1/3 of the face of males (33.73% ± 2.35%) was less than that of females (38.57% ± 2.76%) (P<0.05). The average psychological score of males (57.75±13.46) was higher than that of females (53.69±17.95) (P<0.05). The ratios of maxillary teeth and gingival exposure to oral fissure in the postural smile were positively correlated with the nasolabial angle. The oral fissure width in spontaneous laughter was negatively correlated with psychological score.@*Conclusion @# Convex-faced males and females aged 20 to 30 have different smile exposures and smile patterns. Males tend to smile more openly with a larger opening and less gingival exposure, while females tend to grin with a small opening and more gingival exposure. Smile exposure is positively correlated with nasolabial angle and negatively correlated with smile satisfaction.

Application of bilateral facial perforator artery flap in repairing large area defect in middle and lower part of nose / 中国修复重建外科杂志

OBJECTIVE@#To investigate the feasibility and effectiveness of bilateral facial perforator artery flap in repairing large area defect in middle and lower part of nose.@*METHODS@#The clinical data of 18 patients with large area defect in middle and lower part of nose repaired by bilateral facial perforator artery flap between January 2019 and December 2022 were retrospectively analyzed. Among them, there were 13 males and 5 females, the age ranged from 43 to 81 years, with an average of 63 years. There were 3 cases of nasal trauma, 4 cases of basal cell carcinoma, 8 cases of squamous cell carcinoma, 1 case of lymphoma, and 2 cases of large area solar keratosis. The size of the defect ranged from 3.0 cm×3.0 cm to 4.5 cm×4.0 cm; the size of unilateral flap ranged from 3.0 cm×1.3 cm to 3.5 cm×2.0 cm, and the size of bilateral flaps ranged from 3.3 cm×2.6 cm to 4.5 cm×4.0 cm.@*RESULTS@#One patient developed skin flap necrosis after operation, and a frontal skin flap was used to repair the wound; 1 case gradually improved after removing some sutures due to venous congestion in the skin flap, and the wound healing was delayed after dressing change; the remaining 16 cases of bilateral facial perforator artery flaps survived well and all wounds healed by first intention, without any "cat ear" malformation. All 18 patients had first intention healing in the donor area, leaving linear scars without obvious scar hyperplasia, and no facial organ displacement. All patients were followed up 3-12 months, with an average of 6 months. Due to the appropriate thickness of the flap, none of the 18 patients underwent secondary flap thinning surgery. All flaps had good blood circulation, similar texture and color to surrounding tissues, symmetrical bilateral nasolabial sulcus, and high patient satisfaction.@*CONCLUSION@#The bilateral facial perforator artery flaps for repairing large area defect in middle and lower part of nose can achieve good appearance and function, and the operation is relatively simple, with high patient satisfaction.

Injerto de grasa autóloga con lipofiltración en surco nasolabial

Introducción: La profundización de los surcos nasolabiales es uno de los signos más tempranos del envejecimiento natural del ser humano y puede ser atenuado con el empleo de materiales de relleno, entre ellos el injerto de grasa autóloga. Objetivo: Describir los resultados de la infiltración de grasa autóloga en el surco nasolabial para el rejuvenecimiento facial. Métodos: Se realizó un estudio observacional, descriptivo, de corte longitudinal y prospectivo, para describir la infiltración de grasa autóloga en el surco nasolabial para el rejuvenecimiento facial en 40 pacientes. Los pacientes se siguieron durante seis meses de forma trimestral (un mes, tres meses y seis meses) y se evaluaron las variables: tiempo de recuperación, aparición de complicaciones, grado de satisfacción de los pacientes y resultados estéticos. Resultados: La edad media fue de 47 años, con predominio del sexo femenino. El 92 % de los pacientes se recuperó en menos de 10 días, con la aparición de seis complicaciones. La disminución del defecto posterior al procedimiento fue significativa respecto al momento inicial; sin embargo, con el tiempo (tres a seis meses) el defecto en el surco nasolabial reapareció en algunos pacientes. El grado de satisfacción de los pacientes vario entre un 95 % (un mes) a un 90 % a los seis meses y los resultados estéticos catalogados como buenos disminuyeron de un 90 % (un mes) a un 65 % (seis meses). Conclusiones: Se demostró que el injerto de grasa autóloga en el surco nasolabial es un procedimiento con resultados estéticos buenos, sin embargo, este disminuye en los meses posteriores, lo que puede estar relacionado con la reabsorción del injerto graso.

Introduction: The deepening of the nasolabial folds is one of the earliest signs of natural aging in humans and can be mitigated with the use of filler materials, including autologous fat grafting. Objective: To describe the results of autologous fat infiltration in the nasolabial fold for facial rejuvenation. Methods: An observational, descriptive, longitudinal and prospective study to describe the infiltration of autologous fat in the nasolabial fold for facial rejuvenation was carried out in 40 patients. The patients were followed up for 6 months: one month (1M), three months (3M) and six months (6M) and the evaluated variables were: recovery time, appearance of complications, degree of patient satisfaction and aesthetic results. Results: The average age was 47 years, with a female prevalence. 92% of patients recovered in less than 10 days, with the only appearance of six complications. The decrease in the defect after the procedure was significant compared to the initial moment; however, over time (3-6M) the defect in the nasolabial fold reappeared in some patients. The degree of patient satisfaction varied between 95% (1M) to 90% at 6M and the aesthetic results classified as good decreased from 90% (1M) to 65% (6M). Conclusions: It was shown that autologous fat grafting in the nasolabial fold is a procedure with good aesthetic results, however it decreases in subsequent months, which may be related to the reabsorption of the fat graft.

The application of nasolabial fold flap in the nasal ala subtotal defect after nasal ala tumor operation / 中国医师进修杂志

Objective:To explore the effect of nasolabial fold flap in the treatment of nasal ala subtotal defect nasal afte ala tumor operation.Methods:The clinical data of 7 nasal ala subtotal defect patients underwent nasal ala basal cell carcinoma operation in the First People′s Hospital of Lianyungang City from February 2018 to September 2020 were retrospectively analyzed.Results:Seven patients with nasal ala subtotal defect were successfully repaired with nasolabial fold flap. The patients were followed up for 19 to 52 months, the flaps survived, the color was good, the contour was not bloated, the nasal ventilation was not affected, and good results were achieved.Conclusions:The nasolabial fold flap repair of the nasal ala subtotal defect after nasal ala tumor operation has the advantages of simple method, rich materials, no need for vascular anastomosis, no need for secondary surgery, accurate effect and so on, which is suitable for clinical promotion in clinical.

Nasolabial flap reconstruction for orofacial defects: A case series

Objective@#To describe our clinical experience with, and functional outcomes of the nasolabial flap for reconstruction of orofacial defects. @*Methods@#Design: Retrospective Case Series. Setting: Tertiary National University Hospital. Participants: Records of 11 patients on whom a nasolabial flap was performed for reconstruction of head and neck defects between January 2013 and December 2018 were analyzed.@*Results@#All patients underwent wide excision with or without frozen section, with or without neck dissection, and nasolabial flap closure was performed by a single surgeon. There were no major complications. In two cases, the nasolabial flap was used as an adjunct for Abbé and deltopectoral flap reconstruction. One had poor oral competence due to the bulk of the deltopectoral flap. Acceptable aesthetics and functional outcomes were achieved. @*Conclusion@#The nasolabial flap is a viable alternative for reconstruction of orofacial defects following head and neck surgeries. Additional cases can help validate our initial experience

Application of nasolabial subcutaneous pedicled flap in repairing skin defect after resection of nasolabial mass / 中华医学美学美容杂志

Objective:To investigate the method and application experience of nasolabial subcutaneous pedicled flap in the repair of skin defect after resection of nasolabial mass.Methods:From December 2016 to December 2020, a total of 58 patients (43 cases of nevus, 12 cases of seborrheic keratosis and 3 cases of keratinacanthoma) were admitted to the Facial Neck Center of Plastic Surgery Hospital of Chinese Academy of Medical Sciences, including 24 males and 34 females. They ranged from 17 to 55 years old, with an average age of 33 years. The minimum facial tumor area was 0.8 cm×0.8 cmand the maximum was 2.2 cm×2.0 cm. A local skin flap with a subcutaneous pedicle was designed preoperatively in the nasolabial groove area, and the subcutaneous pedicle was transferred to the defect area through subcutaneous tunnel or by disconnecting the surrounding tissue. The tumor was removed and the skin defect was closed at one stage. Postoperative complications were summarized and patient＇s satisfaction was investigated.Results:Follow-up period ranged from 6 to 48 months. All the 58 patients had primary healing of the transfer incisions, and all the flaps survived. The blood supply of the flaps was good, and the scar of the operative area was smooth. After resection of peri-lip mass, there was 1 case with obvious scar in the donor area of nasolabial groove, and the overall satisfaction rate was 98.3%.Conclusions:The application of nasolabial subcutaneous pedicled skin flap to repair the skin defect after resection of nasolabial tumor has the advantages of preventing the pulling deformation of the organ, it can be completed in one stage and repair the facial skin defect from a distant position. In addition, the thickness and color of the skin flap are similar to the defect site, and the scar of the donor site is not obvious, and so the appearance and function of the surgery can be satisfied.

Clinical outcomes of personalized PEEK prosthesis in correcting nasolabial fold depression / 中华医学美学美容杂志

Objective:To investigate the clinical outcomes of personalized polyetheretherketone (PEEK) implant in the correction of nasolabial fold depression.Methods:A total of 30 patients with nasolabial fold depression (5 males, 25 females, aged 26 to 52 years, mean 36.3 years) admitted to the Affiliated Friendship Plastic Hospital of Nanjing Medical University who want to undergo nasolabial fold augmentation from January 2019 to January 2021. All patients underwent CBCT scan and three-dimensional simulation, the personalized PEEK implant was designed and produced with CAD/CAM technique, the personalized PEEK was implanted during the operation. The patients were followed up for 3-12 months, and the wrinkle score and satisfaction were compared before operation and 3 months and 6 months after operation.Results:The depressions of nasolabial fold were significantly improved in all patients, and there were no complications such as hematoma and infection after operation. During the follow-up, there was no implant displacement or exposure, and the effect was stable and lasting. The scores of wrinkles at 3 months after operation (2.30±0.47) and 6 months after operation (2.17±0.38) were significantly lower than those before operation (4.03±0.67), and the scores of satisfaction were significantly higher than those before operation ( P<0.05). The scores of satisfaction at 3 months after operation (3.97±0.56) and 6 months after operation (4.23±0.57) were significantly higher than those before operation (1.70±0.60). The difference was statistically significant ( P<0.05). Conclusions:3D printing personalized PEEK prosthesis is effective in correcting nasolabial fold depression, and it is safe and stable, so it is recommended for clinical application.

Manejo oftalmológico en parálisis facial refractaria mediante tira tarsal y suspensión del pliegue nasolabial / Ophthalmological management of refractory facial palsy using tarsal strip and suspension of the nasolabial fold

INTRODUCCIÓN. La parálisis facial refractaria produce ectropión paralítico secundario, que predispone a la queratopatía por exposición y otras complicaciones oculares, que deben ser manejadas con cirugía. OBJETIVO. Describir el manejo quirúrgico oftalmoló-gico en parálisis facial refractaria mediante tira tarsal y suspensión del pliegue nasolabial. MATERIALES Y MÉTODOS. Estudio observacional, retrospectivo. Población y muestra conocida de 8 Historias Clínicas, en el Hospital de Especialidades Carlos Andrade Marín, período enero 2016 a diciembre 2018. Criterios de inclusión: registros de parálisis facial y ectropión paralítico. Los datos fueron tomados del sistema AS400, y se analizaron en el programa estadístico International Business Machines Statistical Package for the Social Sciences, Versión 25.0. RESULTADOS. La etiología tumoral fue 62,5% (5; 8), A los 6 me-ses postquirúrgicos se observó resolución de: lagoftalmos, lagrimeo, ardor ocular y quera-titis en el 87,5% (7; 8); el ectropión se resolvió en todos los casos y se obtuvo una mejoría en la ptosis. La agudeza visual mejoró en el 75,0% (6; 8). DISCUSIÓN: La literatura evi-denció que las técnicas quirúrgicas si bien no abordan el aspecto oftalmológico y estético a la vez, aún es incierto su manejo de manera conjunta dado que ha sido poco descrita pero ha adquirido importancia por los resultados en la Unidad de Oftalmología del hospital.CONCLUSIÓN. La descripción del manejo quirúrgico oftalmológico en parálisis facial re-fractaria mediante la técnica de tira tarsal y suspensión del pliegue nasolabial fue asertiva como experiencia local.

INTRODUCTION. Refractory facial paralysis produces secondary paralytic ectropion, which predisposes to exposure keratopathy and other ocular complications, which must be managed with surgery. OBJECTIVE. Describe the ophthalmic surgical management of refractory facial paralysis using tarsal strip and suspension of the nasolabial fold. MATE-RIALS AND METHODS. Observational, retrospective study. Population and known sam-ple of 8 Clinical Histories, at the Carlos Andrade Marín Specialty Hospital, period from january 2016 to december 2018. Inclusion criteria: records of facial paralysis and paralytic ectropion. The data were taken from the AS400 system, and analyzed in the statistical pro-gram International Business Machines Statistical Package for the Social Sciences, Version 25.0. RESULTS. The tumor aetiology was 62,5% (5; 8). At 6 months after surgery, resolu-tion of: lagophthalmos, lacrimation, ocular burning and keratitis was observed in 87,5% (7; 8); ectropion resolved in all cases and ptosis improved. Visual acuity improved in 75,0% (6; 8). DISCUSSION: The literature showed that the surgical techniques, although they do not address the ophthalmological and aesthetic aspects at the same time, their joint mana-gement is still uncertain since it has been little described but has acquired importance due to the results in the Ophthalmology Unit of the hospital. CONCLUSION. The description of ophthalmic surgical management in refractory facial paralysis using the tarsal strip techni-que and suspension of the nasolabial fold was assertive as a local experience.

Questionable Nasolabial Lump: A Case Report

As an otorhinolaryngologist it is not an everyday occurrence to find a swelling in the nasolabialfold area. The challenge however lies in the diagnosis, proper and timed treatment of the existing pathology, especially in a non –infective case. There are various pathologies that can lead to a swelling in the nasolabial area. We here report a rare case of a female patient who presented to our outpatient department with a slowly progressive nasolabial swelling which radiologically pointed towards a Nasolabial cyst. However, the final diagnosis was an entity on the other end of spectrum, an Ameloblastoma, an odontogenic tumor

Reconstrucción nasal compleja con colgajo frontal y nasolabial / Complex Nasal Reconstruction with Frontal and Nasolabial Flap

RESUMEN Introducción: La reconstrucción nasal con colgajo frontal es frecuente en pacientes de edad avanzada, por lo general de causa oncológica. Con frecuencia se requieren otras técnicas complementarias, cuando los defectos comprometen varias subunidades nasales. Por lo que, reconstruir la nariz en pacientes jóvenes constituye siempre un gran desafío al cirujano plástico, por su repercusión social y la baja autoestima que afecta a estos pacientes. Objetivo: Mostrar las técnicas quirúrgicas empleadas en la reconstrucción nasal de un caso complejo, en el Instituto Nacional de Oncología y Radiobiología de Cuba. Caso clínico: Paciente masculino de 25 años de edad, con antecedentes de salud hasta sufrir un accidente por caída de una bicicleta, que ocasionó la amputación de la punta nasal y parte del ala nasal izquierda, con daño en los cartílagos alares. Conclusiones: La reconstrucción nasal con colgajo frontal y colgajo nasogeniano doblado sobre sí mismo, constituyen una adecuada herramienta quirúrgica del cirujano plástico para reconstruir defectos oncológicos y traumáticos(AU)

ABSTRACT Introduction: Nasal reconstruction with frontal flap is frequent in elderly patients, usually for oncological cause. Other complementary techniques are often required when the defects involve several nasal subunits. Therefore, nose reconstruction in young patients is always a great challenge for the plastic surgeon, due to its social repercussions and the low self-esteem affecting these patients. Objective: To show the surgical techniques used in the nasal reconstruction of a complex case, at the National Institute of Oncology and Radiobiology of Cuba. Clinical case: 25-year-old male patient, with a medical history until he suffered an accident due to a fall off a bicycle, which provoked the amputation of the nasal tip and part of the left nasal wing, with damage to the ala cartilages. Conclusions: Nasal reconstruction with frontal flap and nasolabial flap folded on itself constitute an adequate surgical tool for the plastic surgeon to reconstruct oncological and traumatic defects(AU)

Quiste nasolabial: reporte de dos casos / Nasolabial cysts: report of two cases

Los quistes nasolabiales son lesiones quísticas poco frecuentes, que se presentan como ocupación de la fosa canina, el ala nasal o el vestíbulo nasal. Usualmente son asintomáticas, pero pueden infectarse. El diagnóstico se realiza con el examen físico y exámenes imagenológicos, como la tomografía computarizada y/o resonancia magnética. El tratamiento consiste en la extirpación quirúrgica completa por abordaje sublabial, o por marsupialización endoscópica transnasal. Se describen dos casos, uno de ellos es una paciente de sexo femenino que presenta deformidad nasal producto del crecimiento progresivo de un quiste nasolabial unilateral, y otro de un paciente de sexo masculino que presenta una celulitis facial severa, con una tomografía computarizada que muestra quistes nasolabiales bilaterales. Los quistes nasolabiales deben ser considerados como parte del diagnóstico diferencial en otorrinolaringología en cuadros de deformidad nasal y aumento de volumen facial.

Nasolabial cysts are a rare developmental cyst, presenting as a fullness of canine fossa, nasal ala or vestibule of the nose. They are usually asymptomatic but may become infected. The diagnostic approach includes physical examination and imaging studies such as computed tomography and/or magnetic resonance imaging. Treatment is complete surgical excision by sublabial approach, or transnasal endoscopic marsupialization. Here we describe two cases, one female presenting as nasal deformity due to progressive growth of unilateral nasolabial cyst, and a healthy young male presenting severe facial cellulitis, with a computed tomography showing bilateral nasolabial cysts. Nasolabial cyst should be incorporated in the differential diagnosis of nose deformities and facial swelling in otorhinolaryngology.

Facial Angle Profiles in Turkish Healthy Population

The knowledge of the facial angles is essential for safe and accurate plastic surgery interventions. Facial angles are used as a reference value for comparison during diagnosis and treatment planning. Also, the facial angles will provide valuable data in evaluation of facial aesthetics. So, the aim of this study was to determine the ideal values of the facial angles in Turkish healthy adults.METHODSTwo hundred and forty seven (129 females; 118 males) subjects aged between 18 and 25 years were included in this study. Frankfort horizontal plane was chosen to determine the angles related with face. Photographs were acquired using a Digital SLR Camera with fixed shooting values. (Canon EOS 80D; ISO 100 f/4.5). In all the shoots, a printed scale with known dimensions was present. Acquired images were then transferred to a computer station. Measurements were made using Image J 1.52a with 1/100 mm sensitivity. Statistical analysis was done using SPSS Ver. 22.00. A p<0.05 value was considered as significant. Student’s T Test was used to determine the significance between gender, while Pearson Correlation analysis was done to evaluate the relation between gender.RESULTSStatistically significant difference was found between the genders and the frontonasal angle, the nasofrontal angle, the nasolabial angle, the chin neck angle, and the nasal projection. Also, the fronto nasal angle, chin neck angle, and nasal projection measurements were higher in males than in females, whereas the nasofrontal angle and nasolabial angle were lower in males than in females. Additionally, there was a significant, negative very low correlation between fronto-nasal angle (-0.148), chin-neck angle (r=-0.179) and gender; a significant, negative and low correlation (r=-0.243) between nasal projection and gender, a significant, positive and low correlation between nasolabial angle and gender (r=0.259); and nasofrontal angle and gender (r=0.388).CONCLUSIONSFacial angle values of healthy population provide important and useful knowledge in terms of comparison of abnormalities clinically, and data may be valuable for the representatives of clinical disciplines.

Three-dimensional measurement and analysis of nasolabial soft tissue changes following maxillary anterior movement by Le Fort osteotomy / 上海交通大学学报（医学版）

Objective • To evaluate nasolabial soft tissue changes of Chinese patients with malocclusion after maxillary anterior movement by Le Fort osteotomy with three-dimensional measurement. Methods • From Jan. to Dec. 2017, 37 patients with skeletal Class III malocclusion from Department of Oral and Craniomaxillofacial Surgery of Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, who underwent maxillary Le Fort osteotomy for anterior movement and bilateral sagittal split ramus osteotomy (bi-maxillary orthognathic surgery), were included. A full cranial spiral CT scan and three-dimensional facial soft tissue images were performed within 1 week before and 6 months after operation. Landmarks, relative distance and angle of nasolabial soft tissue were located and measured by 3dMD vultus software, and the differences before and after operation were compared. Results • After bi-maxillary orthognathic surgery, the alar width increased by an average of 0.82 mm, the subalar width increased by an average of 1.07 mm, the upper lip length increased by an average of 1.41 mm, the nasolabial angle increased by an average of 3.09, and the pronasal angle decreased by an average of 1.51(all P<0.05), while nasal height, nasal length and nasal frontal angle were basically stable. Conclusion • After the maxillary Le Fort I osteotomy for anterior movement, the face of patient with malocclusion is improved, and the nasolabial soft tissue is also changed.

Reconstruction of large nasal alar squamous cell carcinoma defect using a superiorly - Based nasolabial flap

@#The nasal skin is the most common site of malignancy in the face accounting for as much as 25.5 percent by virtue of its location and propensity for direct exposure to ultraviolet radiation from the sun.1-3 Among the various cutaneous malignancies, basal cell carcinoma is the most ommon, but other types of cancer such as squamous cell carcinoma, cutaneous malignant melanoma, and basosquamous carcinoma are also common.4 Following surgical resection of a malignant lesion, the defect calls for a reconstructive option that will restore aesthetics and function. We present a squamous cell carcinoma of the nasal alar skin which underwent excision and reconstruction of the defect using a superiorly - based nasolabial flap. CASE REPORT A 66-year-old man consulted at the outpatient clinic due to a nasal alar mass on the right. The mass started one year prior to consult as a pimple-like lesion on the right nasal ala. There was no history of manipulation or trauma to the aforementioned area. He consulted at a local hospital where he was given unrecalled antibiotics that did not cure the lesion. Instead, he noticed that it gradually enlarged, and a deep ulceration developed within the mass. This prompted consult at our outpatient clinic where a 3 x 2 cm ulcerating mass with crusting and necrotic areas was noted on his right nasal ala. (Figure 1) Anterior rhinoscopy showed an intact mucosa in the right nostril with no gross evidence of tumor involvement. There were no enlarged cervical lymph nodes palpated in the neck. A wedge biopsy revealed a well-differentiated squamous cell carcinoma. He claimed that he had no family history of cutaneous malignancy. However, he had a 20 pack-year history of smoking and was a heavy alcoholic beverage drinker. He previously worked as an electrician and denied chronic exposure to sunlight. He consequently underwent excision of the right nasal alar mass with 5-mm margin. (Figure 2A, B) A histologic evaluation of the margins revealed that the borders and tumor base were negative for malignancy. The alar cartilage was not involved by tumor. Reconstruction of the defect was done using a superiorly - based nasolabial flap on the right. (Figure 3A, B, C) Two weeks postoperatively, the patient came in for follow-up with a healed, aesthetically - pleasing, and well-coaptated wound. (Figure 4) He remains free of any evidence of recurrence after 1 year.

Septopremaxillary ligament traction system: a review

Over the years, several animal studies have been conducted concerning the role of cartilaginous nasal septum, septopremaxillary ligament in midfacial growth. Most of the studies utilized non primate animal models at first and then more recently in primates such as chimpanzee. Proper choice of animal model to extrapolate from is critical for successful experimental design. Although nonhuman primates are phylogenetically closer to humans than other mammalian groups for better extrapolation to human condition, not all the craniofacial experiments require primate models. Renewed interests in understanding the influence of septopremaxillary ligament resection on midfacial growth led to many in vitro experiments on animal models. Recently systematic review of relevant animal experiment is regarded as a prerequisite for the conduct of the new clinical trials. Despite this fact, the literature addressing this topic in humans and systematic review on the effect of the septopremaxillary ligament is scarce. The more recent studies show that the maxillary labial frenum encloses the septopremaxillary ligament and forms an important constituent of septopremaxillary traction system. The biomechanical force mediating through the septopremaxillary ligament, maxillary labial frenum and nasolabial muscles results in stimulating their effects on sagital growth of the maxilla. The main purpose of this review is to update and extend the knowledge of the role of septopremaxillary traction system on the midfacial growth by synthesizing the available literature involving the septopremaxillary ligament resection in experimental models. If this review could synthesize the results of relevant research, a change in the therapeutic notions can also be expected.

Recurrent oral submucous fibrosis with nil mouth opening surgical management and reconstruction with bilateral nasolabial flap: A case report and review of literature

Oral submucous fibrosis [OSF] is a premalignant condition characterized by inflammation and progressive fibrosis of submucosal tissue, resulting in trismus. It is associated with chewing of areca nut in betel quid. Mortality rate is significant because it transforms into oral squamous cell carcinoma at a rate of 2.3%–7.6%. The aim of this article is to share our experience in managing a case of recurrent oral submucous fibrosis with nil mouth opening by surgical excision, coronoidotomy, and reconstruction of buccal defect using bilateral inferiorly based nasolabial flap, followed by active oral physiotherapy. The patient had reached an acceptable mouth opening with no further recurrence. The patient was observed closely for any malignant transformation. Surgical excision of bands and coronoidotomy followed by reconstruction with nasolabial flaps and active physiotherapy in the postoperative period remains a good option for recurrent and advanced cases of OSF with acceptable functional and cosmetic results.

Clinical efficacy of injected autologous fat and buried polydioxanone threads for nasolabial fold filling / 中华医学美学美容杂志

Objective@#To investigate the clinical application of injected autologous fat and buried polydioxanone threads for nasolabial fold filling.@*Methods@#From April 2016 to October 2017, 64 cases of mild and moderate nasolabial fold beauty seekers from the First People＇s Hospital of Jiande were divided into group A and group B with their attitude. Group A (28 cases) were only treated with buried polydioxanone threads for nasolabial fold filling; Group B (36 cases) were treated with injected autologous fat and buried polydioxanone threads for nasolabial fold filling. The surgical effect was recorded for 18 months.@*Results@#The most common complications were swelling, bruising and pain immediately after the surgery. Polydioxanone threads exposure occurred in two cases in each group 2 weeks after the surgery. There were satisfactory results in skin color and skin texture in both groups. 9 cases showed inadequate correction in group A while only 2 cases showed inadequate correction in group B in long-term follow-up (>3 months).@*Conclusions@#Combined treatment of autologous fat and polydioxanone threads is safe and effective for nasolabial fold filling.