CPT® Code 23170

A sequestrectomy is a surgical procedure aimed at removing a sequestrum, which is a segment of necrotic (dead) bone that has detached from the surrounding healthy bone tissue. This procedure is specifically indicated for conditions such as osteomyelitis, an infection of the bone, or a bone abscess, which is a localized collection of pus within the bone. The procedure can be performed on various bones, including the clavicle, scapula, or the humeral head to neck. During the operation, an incision is made through the skin and soft tissue to access the affected area. If the periosteum, the layer of tissue covering the bone, is healthy, it is carefully lifted away from the sequestrum to allow for the excision of the necrotic bone. In cases where the periosteum is not viable, the surgeon may find that new bone, known as involucrum, has developed around the sequestrum. In such instances, the necrotic bone is removed while preserving the involucrum, which will aid in the healing process and contribute to the formation of new bone in the area of the defect. After the necrotic tissue is removed, the surgeon will close the incisions in the soft tissue and skin, followed by the application of a dressing to protect the surgical site.