Dynamic Profundus Splint for Flexor Profundus Repair

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Abstract
Flexor profundus is a mass action muscle so that when we fully extend one finger including full extension of the distal joint the entire muscle is pulled distally. By fully flexing the injured or operated finger at the metacarpophalangeal joint and fully extending the adjacent fingers, flexor digitorum profundus of the operated finger is made so redundant as to abolish all tension at the suture line. The position of the operated finger: metacarpophalangeal joint flexion with interphalangeal joint extension is ideal for the preservation of joint mobility and therefore ideal for the restoration of movement when the repaired flexor tendon is mobilized. It is permissible to splint a healthy finger in full extension for three weeks.

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