Although implanted for over 40 years, finger prostheses have failed to match the success achieved by artificial hip and knee prostheses, despite a myriad of designs having been proposed and implanted. This article looks at the currently available designs of metacarpophalangeal prosthesis, both single-piece and multicomponent implants. An appraisal of their designs and the clinical results, where available, are provided. The review also considers the challenges that are still faced by bioengineers and surgeons concerned with improving the success of metacarpophalangeal prostheses. In addition, key current areas of concern such as in vitro testing and contemporary issues in rheumatology, which may be diminishing the amount of metacarpophalangeal arthroplasty taking place, are discussed.

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