CPT® Code 27397

The CPT® Code 27397 refers to a surgical procedure involving the transplant or transfer of multiple muscles or tendons within the thigh, specifically with the intention of redirecting or rerouting muscle action. This procedure is particularly relevant in cases where there is a muscular imbalance in the thigh that leads to knee dysfunction and difficulties in walking. By transferring or rerouting the muscle action, the procedure aims to restore functional movement and alleviate issues associated with spasticity or weakness. The muscles involved in this procedure can include both extensor and flexor tendons, which play crucial roles in the movement of the knee and hip. For instance, a common example is the rectus femoris, a muscle that serves dual functions as both a knee extensor and a hip flexor. In cases where knee function is compromised, the rectus femoris may be surgically repositioned to enhance knee mobility while sacrificing its hip function. This procedure can also involve the transfer of additional muscles, such as hamstrings, to optimize the overall function of the thigh. The complexity of this procedure underscores the importance of careful surgical planning and execution to achieve the desired outcomes in muscle function and patient mobility.