ABSTRACT
PURPOSE: This systematic review and meta-analysis aimed to investigate anatomical changes in the maxillary sinus after LeFort I osteotomy. METHODS: The study protocol was developed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Protocols, and it was registered with the International Prospective Register of Systematic Reviews under registration number CRD42021236412. RESULTS: Our search strategy yielded 64 articles. Of these, 31 were duplicate studies, and 33 were independently reviewed by two authors for eligibility. Of these 33 studies, 24 were excluded as they did not meet the inclusion criteria. Finally, nine studies met the criteria for inclusion, and they were critically reviewed. CONCLUSION: This systematic review and meta-analysis revealed that maxillary sinus volume decreases after one-piece and multisegment osteotomies in both skeletal class II and class III male and female patients, with one-piece LeFort I osteotomy technique showing a greater reduction in the sinus volume than the multisegment osteotomy technique. The maxillary sinus thickness remained constant postoperatively.
Subject(s)
Maxillary Sinus , Orthognathic Surgery , Humans , Male , Female , Maxillary Sinus/surgery , OsteotomyABSTRACT
OBJECTIVES: The objective of the study is to study the incidence and pattern of mandible fractures in the holy city of Madinah in the Kingdom of Saudi Arabia over a retrospective period of 3 years from 2013 (1434H) to 2016 (1436H) and to compare the results with those from other regions of Saudi Arabia and elsewhere. MATERIALS AND METHODS: Relevant data of patients admitted to the King Fahad Hospital, Madinah with a fracture of the mandible during the study were collected from their medical records and radiographs. The age, gender, etiology, role of the patient, site, and number of fractures in the patients were evaluated. The data were analyzed by standard statistical methods. RESULTS: A total of 197 patients with fracture of the mandible were admitted in the period of the study by the Oral Maxillofacial Surgery Department, King Fahad Hospital, Madinah. There were 165 male and 32 female patients. The ages ranged from 3 to 86 years with a mean of 24 years. A total of 260 fractures of Mandible were documented. The largest number (113) of patients was found in the age group between 16 and 30 years. Trauma caused by motor vehicle road traffic accidents (RTAs) was the main etiology of the fractures followed by falls and assault. The majority of the patients were in the role of vehicle drivers. The condylar anatomical site of mandible was most frequently affected and constituted the largest number (103) of fractures followed by the angle (51), parasymphysis (45), and then by the body (23) of the mandible. Dentoalveolar fractures were present in 22 cases. Very less number of coronoid fractures (7), followed by those of the ramus (5), and least number at the symphysis (4) of the mandible were found. CONCLUSION: RTA was the most common etiology for trauma and fracture of the mandible. The males outnumbered the female patients, the largest number of patients with trauma and mandible fracture was found in the age group between 16 and 30 years and frequency of condylar fractures was higher.
