What tendon is recommended for harvesting to perform a CMC ligament reconstruction?

• A. FPL
• B. FDP
• C. FCR
• D. EDC

Answer: (C)

For performing a CMC (carpometacarpal) ligament reconstruction, the flexor carpi radialis (FCR) tendon is commonly recommended for harvesting. This tendon is particularly suitable because of its favorable characteristics for reconstructive procedures.

The FCR tendon has a relatively small footprint, which allows for easier harvesting while still providing sufficient strength and durability for the reconstruction. Its location and attachment point make it an excellent choice for repairing the ligamentous structures of the thumb, as it can be redirected to reinforce the stability of the CMC joint effectively.

Additionally, the FCR tendon is not a primary mover of the thumb's function in terms of grip and pinch strength, so its harvesting has minimal impact on the patient's overall hand function. This is crucial in surgical decisions, as the goal is to restore stability while preserving as much native function as possible.

In contrast, other tendons like the flexor pollicis longus (FPL) and flexor digitorum profundus (FDP) have more critical roles in the function of the thumb and fingers, and harvesting them could result in more significant deficits in hand movement. The extensor digitorum (EDC) tendon is primarily involved in extending the fingers, making it