tailieunhanh - báo cáo hóa học:" An interactive surgical planning tool for acetabular fractures: initial results"

Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí sinh học quốc tế đề tài : An interactive surgical planning tool for acetabular fractures: initial results | Fornaro et al. Journal of Orthopaedic Surgery and Research 2010 5 50 http content 5 1 50 JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH TECHNICAL NOTE Open Access An interactive surgical planning tool for acetabular fractures initial results 12 3 1 3 1 Jurgen Fornaro Marius Keel Matthias Harders Borut Marincek Gábor Szekely Thomas Frauenfelder Abstract Background Acetabular fractures still are among the most challenging fractures to treat because of complex anatomy involved surgical access to fracture sites and the relatively low incidence of these lesions. Proper evaluation and surgical planning is necessary to achieve anatomic reduction of the articular surface and stable fixation of the pelvic ring. The goal of this study was to test the feasibility of preoperative surgical planning in acetabular fractures using a new prototype planning tool based on an interactive virtual reality-style environment. Methods 7 patients 5 male and 2 female median age 53 y 25 to 92 y with an acetabular fracture were prospectively included. Exclusion criterions were simple wall fractures cases with anticipated surgical dislocation of the femoral head for joint debridement and accurate fracture reduction. According to the Letournel classification 4 cases had two column fractures 2 cases had anterior column fractures and 1 case had a T-shaped fracture including a posterior wall fracture. The workflow included following steps 1 Formation of a patient-specific bone model from preoperative computed tomography scans 2 interactive virtual fracture reduction with visuo-haptic feedback 3 virtual fracture fixation using common osteosynthesis implants and 4 measurement of implant position relative to landmarks. The surgeon manually contoured osteosynthesis plates preoperatively according to the virtually defined deformation. Screenshots including all measurements for the OR were available. The tool was validated comparing the preoperative planning and postoperative results by

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