Brown George A, Milner Brenton, Firoozbakhsh Keikhosrow
Department of Orthopaedics and Rehabilitation, School of Medicine, University of New Mexico Health Sciences Center, 2211 Lomas Boulevard, ACC-2 West, Albuquerque, NM 87131, U.S.A.
J Orthop Trauma. 2002 May;16(5):347-52. doi: 10.1097/00005131-200205000-00010.
To determine the effectiveness of stereolithography modeling technologies in the surgical treatment of complex acetabular fractures, five patients with a complex fracture of the acetabulum and three patients with posterior wall fractures were considered in this study. The patients were surgically treated using an interposition template for accurate positioning of the fixation plate and screw trajectories. Intraoperative fluoroscopy confirmed precise plate placement and that all screw trajectories missed the hip joint. Fluoroscopy was only needed for confirmation of fracture reduction and for confirmation of screw location. Application of a life-size stereolithographic model of the pelvis and an interpositioning template along with the computer model of the reversed nonfractured contralateral hemipelvis provides an effective means for preoperative planning and accurate fixation of acetabular fractures. Further studies with this type of preplanning equipment may show a decrease in operative time and morbidity, decrease in radiation exposure, and improvement in accuracy of plate and screw placement.
为确定立体光刻建模技术在复杂髋臼骨折手术治疗中的有效性，本研究纳入了5例髋臼复杂骨折患者和3例后壁骨折患者。采用置入模板对固定钢板和螺钉轨迹进行精确定位，对患者实施手术治疗。术中透视确认钢板放置精确，所有螺钉轨迹均未穿过髋关节。透视仅用于确认骨折复位及螺钉位置。应用骨盆实物大小的立体光刻模型、置入模板以及对侧未骨折半骨盆的逆向计算机模型，为髋臼骨折的术前规划和精确固定提供了一种有效手段。使用此类术前规划设备的进一步研究可能会显示手术时间和发病率降低、辐射暴露减少以及钢板和螺钉放置的准确性提高。
