Treatment of massive acetabular defects with excessive bone loss: from automated computer-based reconstruction proposal to biomechanically justified defect-filling Triflange Cup implant

摘要

Introduction: Complex reconstructive surgery of the innominate bone requires a high-quality three-dimensional surgery planning. Unfortunately, drawing up such a planning with conventional computer-supported techniques is demanding and time-consuming. Starting from impaired bone geometry, an expert should manually struggle through medical imaging and Computer Aided Design (CAD) software to position the cup, and 'shape' a surrounding structure. At the Division of Biomechanics and Engineering Design (K.U.Leuven, Belgium), in close collaboration with trauma and orthopaedic surgeons of the University Hospitals Leuven, a computer-supported methodology has been developed and validated to offer the user a biomechanically justified proposal for correction of a bone defect or malformation.