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Tendon Lacerations of the Hand

Medical term: Flexor and Extensor Tendon Lacerations

Overview

Tendon lacerations of the hand occur when the flexor or extensor tendons are cut, usually by a sharp object such as a knife, glass, or machinery. Flexor tendons allow you to bend your fingers, while extensor tendons allow you to straighten them. A complete tendon laceration will prevent the affected finger from moving in one direction, and the tendon will not heal on its own without surgical repair.

Our San Diego orthopedic and hand surgery team provides expert tendon repair using microsurgical techniques to restore continuity and function. Timing is important — early repair within the first few weeks of injury generally produces the best outcomes. After surgery, a carefully supervised hand therapy program with protected motion protocols is critical to allow the tendon to heal while preventing adhesions and stiffness that can limit the final result.

Frequently Asked Questions

Do all tendon lacerations require surgery?
Most complete tendon lacerations require surgical repair to restore finger function. Partial lacerations may be managed non-surgically depending on the percentage of the tendon that is cut and the specific tendon involved.
How long is recovery after tendon repair surgery?
Recovery after tendon repair typically takes 3 to 4 months. A structured hand therapy program begins soon after surgery and is essential for achieving the best result. Full grip strength may take up to 6 months to return.
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