RESUMO
Objective:To analyze the anatomical morphology of the zygomatic arch for reduction malarplasty.Methods:Computed tomography (CT) data were obtained from the electronic records of 45 patients in the Tianjin Stomatological Hospital from January 2018 to February 2020. Among them, there were 30 patients with normal protrusion of zygoma (group A) and 15 patients with prominent protrusion of zygoma (group B). The data were imported into modeling and analysis software (Mimics). Left and right three-dimensional (3D) zygoma models were created through standard procedures. In the 3D models, a vertical cut of the zygomatic arch was done, and anatomical morphological characteristics of the zygomatic arch were obtained through bone data measurement and morphological observation. Mean values with 95% confidence intervals ( CI) were calculated for the positional data. Independent sample T-test was conducted on the positional data and anatomical morphology data of the zygomatic arch in the two groups. P< 0.05 was considered as statistically significant. Results:In group B, the anterior edge of the stabilization area was located in front of the articular tubercle point (15.12 mm, 17.16 mm). The posterior edge of the stabilization area was located in front of the articular tubercle point (7.11 mm, 8.24 mm). The posterior edge of the enlarged area was located in front of the articular tubercle point (3.17 mm, 3.94 mm). There were significant differences between group A and group B in the posterior edge of the stabilization area ( t= 2.41, P= 0.018), the posterior edge of the enlarged area ( t=2.58, P= 0.012), and the width of the unilateral face ( P<0.01). Conclusions:There exists a stabilization area of bone morphology and enlargement area in zygomatic arch. The anatomical morphology of the zygomatic arch is different in width of the unilateral face and location of the enlarged area between populations with normal protrusion and prominent protrusion of the zygoma.
RESUMO
Objective To explore the clinical application of irradiated homograft costal cartilage (IHCC) granule transplantation for the pyriform aperture sunken and deformity in the facial contour.Methods From August 2016 to November 2017,a total of 29 female patients were received IHCC transplantation to the face contour.The standardized photos were taken before and after the operation and then survey of patient satisfaction was conducted.Results In a total of 29 patients,the postoperative 21 patients were satisfied with the IHCC transplantation.After the operation,5 cases were slightly highlighted and obvious bundles could be touched in the deep.At the early stage of operation,the cartilage particles were smoothed by means of manipulation.3 cases were not satisfied with full effect postoperatively and satisfied after secondary transplantation.Conclusions The IHCC granule transplantation for pyriform aperture sunken and deformity can increase the overall sense of facial coordination and anti-aging,and is a safe and effective treatment.
RESUMO
Objective To study the convenient, safe and effective surgical intervention methods for correcting prominent wide lower face. Methods According to the wideness of mandibular angles, single or combined surgical treatments were performed by an intraoral approach under nerve block and local infiltration anesthesia, such as grinding mandibular angles, curved osteotomy of the angles and osteotomy of ascending ramus outer layer, partial masseter muscle resection, partial buccal fat pad removal and liposuction of cheek to reconstruct the whole lower face contour. Resnlts In the 71 cases followed up for 4 to 24 months, 60 cases were excellent, 9 were acceptable and 2 were unsatisfactory. The total satisfactory rate was 97 %. Conclusion According to the characteristics of prominent wide lower face, single or combined surgical treatments are performed to reconstruct the bone and soft tissue of lower face. This operative method is simple, safe and consistent with cosmetic surgery principle with little complications.