Biometry, a New Method to Objectively Evaluate Results After Facelift Surgery.

PURPOSE: The increasing popularity of cosmetic surgery and its effect on facial recognition software has attracted the attention of many researchers. Indeed, after having undergone cosmetic surgery procedures, nonlinear modifications that are made to facial biometric landmarks may lead to difficulty in recognizing individuals, who received a surgery, by facial biometric systems. This finding motivated us to discuss this topic differently and take advantage of these modifications to objectively study the results of cosmetic surgery. In this study, we propose facial biometry as a new method to objectively describe face changes after facelift surgery. PATIENTS AND METHODS: For this study, 37 women, aged between 50 and 80 years old, were selected. These patients underwent facelift surgery between January 2013 and December 2017. For comparison of the biometric facial features before and after facelift surgery, 7 direct measurements (4 linear and 3 angular) were performed. RESULTS: There was no significant difference between real and preoperative apparent age as per the face recognition software: (63.35 years +/- 6.52 vs 64.54 years +/- 7.49, P = .188 > 0.05). The postoperative apparent age was significantly lower than the preoperative apparent age as per the face recognition software (58.97 years +/- 7.19 vs 64.54 years +/- 7.49; P < 10-3). We found a statistically significant increase in the mean of the 3 ratios of the linear measures and a statistically significant modification in the means of the 3 angular measurements. CONCLUSIONS: Biometry enabled us to evaluate the preoperative and postoperative facial features of patients before and after facelift surgery and to determine objectively whether the estimated age was improved by the surgery.

Photographic smile tracking: Evidence of asymmetric crying faces over time improvement: Case report.

INTRODUCTION: Congenital hypoplasia of the depressor anguli oris muscle is a rare mimic disorder depicted by a lower lip asymmetry apparent when laughing or crying. PRESENTATION OF CASE: A 10-year-old boy consulted our department for an asymmetry when opening his mouth. According to the family, this asymmetry was present since birth. Perinatal characteristics and childhood medical history were investigated with no abnormalities. Physical exam revealed an inability to draw down the right lower lip unilaterally. At rest position, facial asymmetry was not noticeable. Several investigations were done: A CT scan of the petrous part of the temporal bone, an MRI of soft tissues, an electromyography and a heart ultrasound. No anomalies were found. DISCUSSION: This condition has stimulated great interest because of its potential association with congenital anomalies but also in order to reassure families often worried by the situation. A large therapeutic armamentarium is described in literature. CONCLUSION: Among the large armamentarium of therapeutic options, we opted for a wait and see strategy through photographic smile tracking leading to an evidence of Asymmetric crying faces over time improvement.