Le Yang1, Yu-Dong Xiao1, Yu-Jie Liang2, Xi Wang3, Jing-Yuan Li1, Gui-Qing Liao4. 1. Resident, Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China. 2. Associate Professor, Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China. 3. Resident, Department of Orthodontics, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China. 4. Professor and Chief, Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China. Electronic address: drliaoguiqing@hotmail.com.
Abstract
PURPOSE: The surgery-first approach (SFA) in orthognathic surgery, performed without presurgical orthodontic treatment, has gained attention, but the results remain controversial. The purpose of this study was to assess the current evidence on stability, efficacy, and surgical results of SFA versus conventional 3-stage method (CTM) orthognathic surgery. MATERIALS AND METHODS: A comprehensive search in PubMed and Web of Science was conducted. A systematic review and cumulative meta-analysis of all comparative studies were performed to assess the 2 strategies (SFA and CTM) using a random- or a fixed-effects model. Outcomes included treatment duration, postoperative stability, surgical movement, and postoperative occlusion. RESULTS: Ten nonrandomized controlled studies including 513 patients were identified. Compared with CTM, patients in the SFA group benefited from shorter total treatment duration (weighted mean difference [WMD], -5.25; 95% confidence interval [CI], -8.21 to -2.29; P = .0005), similar postoperative stability of the mandible (WMD, 0.35 mm; 95% CI, -0.24 to 0.94; P = .55) and maxilla (WMD, 0.13 mm; 95% CI, -0.35 to 0.60; P = .60), similar surgical movements, and other surgical results. CONCLUSIONS: SFA offers an efficient alternative to CTM with shorter total treatment duration, similar postoperative stability, and other surgical results but longer postoperative orthodontic time.
PURPOSE: The surgery-first approach (SFA) in orthognathic surgery, performed without presurgical orthodontic treatment, has gained attention, but the results remain controversial. The purpose of this study was to assess the current evidence on stability, efficacy, and surgical results of SFA versus conventional 3-stage method (CTM) orthognathic surgery. MATERIALS AND METHODS: A comprehensive search in PubMed and Web of Science was conducted. A systematic review and cumulative meta-analysis of all comparative studies were performed to assess the 2 strategies (SFA and CTM) using a random- or a fixed-effects model. Outcomes included treatment duration, postoperative stability, surgical movement, and postoperative occlusion. RESULTS: Ten nonrandomized controlled studies including 513 patients were identified. Compared with CTM, patients in the SFA group benefited from shorter total treatment duration (weighted mean difference [WMD], -5.25; 95% confidence interval [CI], -8.21 to -2.29; P = .0005), similar postoperative stability of the mandible (WMD, 0.35 mm; 95% CI, -0.24 to 0.94; P = .55) and maxilla (WMD, 0.13 mm; 95% CI, -0.35 to 0.60; P = .60), similar surgical movements, and other surgical results. CONCLUSIONS:SFA offers an efficient alternative to CTM with shorter total treatment duration, similar postoperative stability, and other surgical results but longer postoperative orthodontic time.