Flexor Tendon Injuries (Hand)
A flexor tendon injury occurs when the tendon is cut or ruptures. The flexor tendons attached at the palm side of your fingers and thumbs. They allow your finger and thumb joints to bend, grasp items, and perform fine coordinated movements. The muscles that control these tendons are in the forearm. Lacerations, other trauma, and rheumatoid arthritis are the primary causes of flexor tendon injuries.
Flexor tendon injuries can cause loss of movement, pain, and swelling. Flexor tendon injuries require surgical repair. Splinting and hand therapy rehabilitation usually follow surgical treatment.
Your flexor tendons begin in your forearm and continue to the palm side of your fingers and thumb. Each finger has two flexor tendons and your thumb has one. They are located just underneath the skin. Sheaths thickened in areas by fibrous pulleys guide the flexor tendons and keep them close to your phalanges during motion. The flexor tendons allow your fingers and thumbs to bend, grasp items, and perform fine coordinated movements. The nerves in your fingers (digital nerves) travel parallel and along both sides of the flexor tendons.
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The iHealthSpot patient education library was written collaboratively by the iHealthSpot editorial team which includes Senior Medical Authors Dr. Mary Car-Blanchard, OTD/OTR/L and Valerie K. Clark, and the following editorial advisors: Steve Meadows, MD, Ernie F. Soto, DDS, Ronald J. Glatzer, MD, Jonathan Rosenberg, MD, Christopher M. Nolte, MD, David Applebaum, MD, Jonathan M. Tarrash, MD, and Paula Soto, RN/BSN. This content complies with the HONcode standard for trustworthy health information. The library commenced development on September 1, 2005 with the latest update/addition on February 16, 2022. For information on iHealthSpot’s other services including medical website design, visit www.iHealthSpot.com.