CPT® Code 27151

An osteotomy of the iliac, acetabular, or innominate bone with femoral osteotomy is a surgical procedure aimed at correcting structural abnormalities in the pelvic and femoral bones. This procedure is typically indicated for patients with congenital malformations that lead to complications such as leg length discrepancies, subluxation, or dislocation of the hip joint. The surgery involves a careful evaluation of the malformation, followed by exposure of the affected bones. The surgeon marks the planned osteotomy sites on the pelvic bone and makes precise cuts to reconfigure the bone shape. Additionally, the femur is assessed for any malformations, and similar cuts are made to allow for necessary adjustments in length or shape. If the femoral head is not properly positioned, it may be reduced during the procedure, and the pelvic osteotomy is performed around the newly positioned femoral head. This ensures that the reshaped pelvic bones align correctly with the femoral head. Wedges created from the cut bone are strategically placed to maintain the correct angles, and internal fixation devices such as pins, screws, or wires are utilized to secure the bones in their new positions. The specific CPT® code for this procedure is 27151, while 27156 should be used if an open reduction of the hip is also performed during the same surgical session.