Ms. Patrice Delmas Profile

Patrice Delmas

at Univ of Auckland

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Proceedings Article | 24 February 2010 Paper

Computer assisted 3D pre-operative planning tool for femur fracture orthopedic surgery

Pavan Gamage, Sheng Quan Xie, Patrice Delmas, Wei Liang Xu

Proceedings Volume 7625, 76253D (2010) https://doi.org/10.1117/12.844532

KEYWORDS: 3D modeling, Bone, Image segmentation, X-rays, X-ray imaging, 3D image processing, Surgery, Visualization, Image registration, Image processing

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Femur shaft fractures are caused by high impact injuries and can affect gait functionality if not treated correctly. Until recently, the pre-operative planning for femur fractures has relied on two-dimensional (2D) radiographs, light boxes, tracing paper, and transparent bone templates. The recent availability of digital radiographic equipment has to some extent improved the workflow for preoperative planning. Nevertheless, imaging is still in 2D X-rays and planning/simulation tools to support fragment manipulation and implant selection are still not available. Direct three-dimensional (3D) imaging modalities such as Computed Tomography (CT) are also still restricted to a minority of complex orthopedic procedures. This paper proposes a software tool which allows orthopedic surgeons to visualize, diagnose, plan and simulate femur shaft fracture reduction procedures in 3D. The tool utilizes frontal and lateral 2D radiographs to model the fracture surface, separate a generic bone into the two fractured fragments, identify the pose of each fragment, and automatically customize the shape of the bone. The use of 3D imaging allows full spatial inspection of the fracture providing different views through the manipulation of the interactively reconstructed 3D model, and ultimately better pre-operative planning.

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