Abstract
Complex injuries are not optimally treatable with standard medical methods, especially when joints or articular surfaces are affected. To achieve an intact and functional joint, the articular surface covered by hyaline cartilage must be restored geometrically correct. Since hyaline cartilage has a poor ability to regenerate, a damaged articular surface requires replacement. This article describes the CAE-assisted preoperative planning of the reconstruction of a defective proximal interphalangeal joint surface. While determining needed medical aids, optimization potentials for existing external fixators have additionally been detected. In the following, the development of an adapted finger fixator with extended pre-, intra- and postoperative adjustment possibilities will be explained. The optimized fixator therefore requires less intraoperative precision. Possible inaccuracies during the surgery can be eliminated due to the adjustment possibilities afterwards. Likewise, it is possible to respond to changing anatomical conditions during the healing process, which grants a greater chance of rehabilitation overall. The basic design and material selections for the fixator are defined through the usage of numerical methods. Subsequently, the reliability is tested by using experimental methods.
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Risse, L., Woodcock, S.C., Kullmer, G., Schramm, B., Richard, H.A. (2019). Reconstruction of a Defective Finger Joint Surface and Development of an Adapted External Fixator. In: Tavares, J., Natal Jorge, R. (eds) VipIMAGE 2019. VipIMAGE 2019. Lecture Notes in Computational Vision and Biomechanics, vol 34. Springer, Cham. https://doi.org/10.1007/978-3-030-32040-9_24
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DOI: https://doi.org/10.1007/978-3-030-32040-9_24
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