CPT® Code 28240

The procedure described by CPT® Code 28240 refers to a tenotomy, lengthening, or release of the abductor hallucis muscle. This surgical intervention is primarily indicated for the treatment of clubfoot deformity, a condition where the foot is twisted out of shape or position. The abductor hallucis muscle plays a crucial role in the movement and stabilization of the big toe, and its dysfunction can contribute to the deformity. During the procedure, a medial incision is made starting from the midportion of the first metatarsal bone and extending to the interphalangeal joint of the great toe. This incision allows for the careful dissection of soft tissues to expose the abductor hallucis tendon. Depending on the specific needs of the patient, the surgeon may either release the tendon from its insertion point on the proximal phalanx of the great toe or perform a lengthening procedure. In the case of lengthening, a Z-shaped incision is created in the tendon, which facilitates the elongation of the tendon fibers as the foot is abducted. This technique is designed to restore proper alignment and function of the foot, ultimately improving mobility and reducing discomfort associated with the clubfoot deformity.