Schaaf Heidrun, Kaubruegge Steffen, Streckbein Philipp, Wilbrand Jan-Falco, Kerkmann Heiko, Howaldt Hans-Peter
Department of Maxillofacial Surgery, University Hospital Giessen and Marburg GmbH, Giessen, Germany.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2011 Jan;111(1):34-40. doi: 10.1016/j.tripleo.2010.03.043. Epub 2010 Jul 2.
Treating mandibular angle fractures is common in maxillofacial surgery. The aim of this study was to compare lag screw fixation and miniplates.
This retrospective investigation compared patients treated with miniplates (n = 24) and with lag screws (n = 21). Inclusion criteria were a solitary angle fracture without comminution or other reasons for load-bearing osteosynthesis. The main parameters for the outcome analysis were fracture gaps at 4 defined measuring points on postoperative radiography. Postsurgical complications were recorded.
Fracture gaps measured in panoramic radiographs differed significantly between the lag-screw (average 0.56 mm) group and the group using 1 miniplate (average 0.85 mm) and 2 miniplates (1.40 mm). Miniplate fixation resulted in a wider fracture gap, especially in the region of the lower margin of the mandible.
Lag-screw fixation demonstrated smaller fracture gaps compared with miniplate fixation.
治疗下颌角骨折在颌面外科中很常见。本研究的目的是比较拉力螺钉固定和微型钢板。
这项回顾性研究比较了接受微型钢板治疗的患者（n = 24）和接受拉力螺钉治疗的患者（n = 21）。纳入标准为孤立性角部骨折，无粉碎或其他进行承重骨固定的原因。结果分析的主要参数是术后X光片上4个定义测量点的骨折间隙。记录术后并发症。
全景X光片中测量的骨折间隙在拉力螺钉组（平均0.56毫米）与使用1块微型钢板的组（平均0.85毫米）和2块微型钢板的组（1.40毫米）之间有显著差异。微型钢板固定导致骨折间隙更宽，尤其是在下颌骨下缘区域。
与微型钢板固定相比，拉力螺钉固定显示出更小的骨折间隙。
