Dacron—Silicone Prosthesis for the Metacarpophalangeal and Interphalangeal Joints

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Abstract
The dacron-silicone hinge type prosthesis and its development has been presented. The preliminary results suggest that it is useful in reconstructing metacarpophalangeal joints and interphalangeal joints. It is simple in design. Insertion of the prosthesis is not a complicated procedure but should not be undertaken by anyone unfamiliar with reconstructive surgery in this area. The prosthesis, when applied properly, gives lateral joint stability. It has been shown both clinically and experimentally that fibrous tissue and bone grow into the dacron covered stems. There has been no adverse tissue reaction about the prosthesis. Flexion tests in vitro under strictly controlled conditions indicate that an adequately long flex life is present in our prosthesis. To date, breakage of any prosthesis in clinical use has not been observed.