Joint replacement: Swansons silicone MCP joint
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Swanson’s joint replacement was described in the mid-1960s. The silicone-rubber implant was designed to improve the alignment of the fingers by active as an internal splint and stimulate a pseudo capsule formation. Swanson termed this implant a ‘load-bearing flexible hinge’. This is still the most commonly performed prosthetic arthroplasty for rheumatoid arthritis.
There are three major designs of the implant available. The original Swanson design (Wright Medical), the Small Joint Innovations flexible implant and NeuFlex (DePuy).
Author:Rajive Jose, Consultant Hand and Plastic Surgeon
Institution: Birmingham Hand Centre, Queen Elizabeth Hospital, Birmingham, UK.