Proximalization of the Vascularized Toe Joint in Finger Proximal Interphalangeal Joint Reconstruction: A Technique to Derive Optimal Flexion From a Joint With Expected Limited Motion

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• 作者：Raja Mohan ; MD^&lowast ; ; Victor W. Wong ; MD^&lowast ; ; James P. Higgins ; MD^&lowast ; ; Ryan D. Katz ; MD^&lowast ; ; ^{anne.mattson@medstar.net}
• 关键词：Free toe joint ; proximal interphalangeal joint ; proximalization ; reconstruction
• 刊名：The Journal of Hand Surgery
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：42
• 期：2
• 页码：e125-e132
• 全文大小：1914 K
• 卷排序：42

文摘

When used to reconstruct a finger proximal interphalangeal joint, a free toe interphalangeal joint, without modification, cannot meet the motion demands of the finger to allow palm touchdown. This limitation is the direct result of the toe interphalangeal joint having an intrinsic arc of motion that delivers less flexion than that of a normal functioning finger proximal interphalangeal joint. By modifying the inset of the transferred joint to an extra-anatomical more proximal position, this limitation can be overcome. With a mathematical justification highlighted by a clinical illustration, we demonstrate the feasibility and utility of this “proximalization” technique.