Amputations or congenital deficiencies in proximity to the glenohumeral joint traditionally have limited functional success and a high rejection rate. Many of the critical factors leading to rejection are directly related to the prosthetic socket design. A good understanding of the factors leading to rejection can be used to optimize the socket. Factors such as primary and secondary controls combine with biomechanical requirements to establish the unique requirements for each prosthetic system. Case studies are presented to illustrate such a combined approach.
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