ABSTRACT
BACKGROUND: Supratip deformity is one of the most common complications after open rhinoplasty. This study aimed to define a new risk scoring system for supratip deformity and determine the distances that should be left between the tip defining point (TDP) and anterior septal angle (ASA) to prevent it. METHODS: Four hundred sixty-nine patients who underwent open rhinoplasty between 2018-2022 were included in this retrospective study. The patients were evaluated according to the risk scoring system consisting of four parameters (skin thickness, lower lateral cartilage anatomy, amount of hump resection, and soft tissue procedures). Because of the presence of supratip deformity at the postoperative 12th month, the patients were divided into two groups: (i) without supratip deformity (n = 418) and (ii) with supratip deformity (n = 51). Statistical inferences were made regarding the development of supratip deformity by evaluating the relationship between the risk scores and the intraoperative TDP-ASA distances. RESULTS: There was a significant difference between the groups in risk scores (P < 0.05). In cases with high-risk scores, it was calculated that the probability of developing supratip deformity decreased significantly when the TDP-ASA distance was above 7.5 mm and increased significantly when the TDP-ASA distance was below 6.5 mm. In cases with low-risk scores, it was found that the probability of developing supratip deformity was reduced considerably when the TDP-ASA distance was over 6.0 mm. CONCLUSIONS: The authors recommend keeping the TDP-ASA distance above 6.0 mm in low-risk patients and 7.5 mm in high-risk patients to avoid supratip deformity.
ABSTRACT
OBJECTIVE: The aim of this study was to compare the orbitomalar region projection in patients with cleft lip and palate (CLP) with skeletal class 1 cases. DESIGN: Retrospective. SETTING: Single center. PATIENTS: Cephalometric data of 52 cases with unilateral CLP, 25 cases with bilateral CLP, and 60 healthy participants in skeletal class 1 without CLP were included. MAIN OUTCOME MEASURE(S): A total of 5 parameters, 3 in the orbital and 2 in the suborbital region, that determine the projection of the orbitomalar region on lateral cephalograms, and 13 parameters of the craniofacial region were evaluated. RESULTS: Lateral, inferior, and anterior orbital parameters were similar between groups, while suborbital parameters were in a retrusive position in the CLP groups compared to the control group (P < .05). No significant difference was found between the CLP groups in terms of suborbital parameters. A moderate positive correlation was found between orbitomalar parameters and the anteroposterior positions of the maxilla and mandible. The lateral orbital region had a moderate negative correlation with anterior maxillary height, and the suborbital region had a negative moderate correlation with maxillary inclination. CONCLUSION: Suborbital projection was more retrusive in CLP compared to the control group, but no difference was found between the CLP groups. On the other hand, the correlation between orbitomalar projection and maxillary and mandibular development was significant. The results show that there is a need for alternative treatment modalities for the suborbital region in patients with CLP.
