中国组织工程研究2016，Vol.20Issue(48)：7200-7205,6.DOI:10.3969/j.issn.2095-4344.2016.48.008
基于数字模型设计髋臼后柱拉力螺钉固定导向器的可行性
Feasibility of acetabular posterior column lag screw guide based on digital model design
胡守力 1梅继文 1穆尚强 1李坤 1孙海光1
作者信息
- 1. 吉林医药学院附属医院骨外科，吉林省吉林市 132013
- 折叠
摘要
Abstract
BACKGROUND:Acetabular posterior column fracture is usual y treated by open reduction and internal fixation, but this type of operation has a long incision, big trauma, bleeding, and long operation time. The application of cancel ous bone screw fixation in the anterior and posterior column fractures of acetabulum has been put forward in 1988, and it has the advantages of less surgical trauma, and fast healing of fracture. <br> OBJECTIVE:To establish acetabular fracture lag screw fixed digital model through the technology of digital computer, and then design an acetabular posterior column lag screw into the needle guide for clinical application. <br> METHODS:Data of 82 cases receiving pelvic CT scanning in Affiliated Hospital of Jilin Medical Col ege from June 2012 to June 2015 were selected. Pelvic and acetabular three-dimensional models were reconstructed. According to the data, acetabular posterior column simulation lag screw placement method was set. Simulation was operated by digital technology. Acetabular posterior column lag screw guide device was designed and tested in vitro bone specimens. The experience of device applications was summarized, and could be used in clinic. <br> RESULTS AND CONCLUSION:(1) 82 cases of virtual lag screw implantation succeeded. The distance between anterior superior iliac spine and iliac bone spinous was (158.13±6.94) mm in males, (152.45±7.41) mm in females. Virtual lag screw length was (12.21±1.86) mm in males and (10.38±2.01) mm in females. <br> (2) Guiding device in vitro tests was successful, including the accurate positioning in 8 cases, good positioning in 2 cases, with the excel ent and good rate of 100%. (3) A guide device was successful y used in clinical application. Patients did not have special discomfort and postoperative CT showed satisfactory results. (4) These findings demonstrated that screw fixation through anterior superior iliac spine, posterior superior iliac spine bony prominent line midpoint and ischial tuberosity connection for acetabular column fractures is feasible, and thus the design of the navigation device for implant shows high success rate. The navigation device in the posterior column of the acetabulum fracture can obtain strong stability for fixation, and the clinical effect is reliable.关键词
骨科植入物/数字化骨科/三维重建/髋臼/导向装置/经皮拉力螺钉分类
医药卫生引用本文复制引用
胡守力,梅继文,穆尚强,李坤,孙海光..基于数字模型设计髋臼后柱拉力螺钉固定导向器的可行性[J].中国组织工程研究,2016,20(48):7200-7205,6.
