CPT® Code 27357

The CPT® Code 27357 refers to the procedure of excision or curettage of a bone cyst or benign tumor located in the femur, accompanied by the use of an autograft, which includes the process of obtaining the graft. A bone cyst is defined as a fluid-filled cavity within the bone, and it can manifest in various forms. One prevalent type is the unicameral or simple bone cyst, which is generally considered benign. Another type, the aneurysmal bone cyst, is characterized by vascular tissue that surrounds a blood-filled cystic lesion. In addition to cysts, there are several types of benign bone tumors, such as giant cell tumors, chondromyxoid fibromas, and enchondromas, which may also necessitate surgical intervention. During the procedure associated with CPT® Code 27357, an incision is made over the affected area of the femur, typically in the femoral shaft or distal femur. The soft tissues are carefully dissected to expose the femur. If a cystic lesion is identified, the bone is incised to create a window that allows access to the cyst. The fluid within the cyst is aspirated for laboratory analysis. A curette is then utilized to remove the lining of the cystic cavity completely. In cases where benign tumors are present, the lesion is excised along with a margin of healthy bone to ensure complete removal. Following the excision or curettage, the physician obtains healthy bone tissue, known as an autograft, either from the same surgical site or from a separate location, such as the iliac crest. This autograft is then packed into the defect created in the femur, promoting healing and stability. This procedure is critical for addressing bone cysts and benign tumors while ensuring the integrity of the femur is maintained.