CPT® Code 26554

1. Indications

The toe-to-hand transfer procedure is indicated for various conditions where reconstruction of the hand is necessary. The following are specific indications for performing this procedure:

• Traumatic Amputation - This procedure is indicated for patients who have suffered traumatic loss of fingers, where a toe can be used to restore hand function.
• Congenital Defects - Individuals born with congenital hand anomalies may benefit from this transfer to improve hand functionality and appearance.
• Severe Hand Deformities - Patients with severe deformities or dysfunction in the hand may require a toe-to-hand transfer to regain mobility and dexterity.
• Reconstructive Surgery - This procedure is often part of a broader reconstructive surgical plan for patients needing tissue replacement in the hand.

2. Procedure

The toe-to-hand transfer procedure involves several detailed steps to ensure successful transplantation of the toe. The following outlines the procedural steps:

• Preparation of the Hand - The surgical team prepares the hand by making an incision at the recipient site, excising any scar tissue to create a suitable area for the toe transfer. The underlying bone stump is also prepared to facilitate the attachment of the toe.
• Dissection of Tissues - The surgeon carefully dissects the tissues of the hand to identify and isolate the extensor and flexor tendons, as well as the nerve ends. This step is crucial for ensuring that the transferred toe can be properly integrated into the hand's anatomy.
• Identification of Blood Vessels - Blood vessels in the hand are located and prepared for anastomosis. This involves isolating the vessels to ensure a successful connection with the toe's blood supply.
• Preparation of the Toe - Incision lines are outlined on the skin around the toe designated for transfer. A dermal flap is elevated, taking care to preserve the dorsalis pedis artery and a large subcutaneous dorsal vein, which are essential for the microvascular anastomosis.
• Dissection Around the Toe - The surgeon continues to dissect the soft tissue around the toe until reaching the bony structures. This careful dissection is necessary to ensure that the toe can be excised without damaging critical components.
• Excising the Toe - The toe is excised while preserving the joint capsule and ligaments at the metatarsophalangeal joint, which is vital for maintaining the toe's functionality after transfer.
• Transfer and Anastomosis - The excised toe is then transferred to the prepared site on the hand. Blood vessels in the toe flap are anastomosed to the blood vessels in the hand, and the nerves in the toe are also connected to the nerves in the hand to restore sensation.
• Securing the Transfer - Ligaments and tendons are anastomosed, and Kirschner wires are utilized to hold the bony structures in place until osteosynthesis occurs, ensuring stability during the healing process.
• Closure of the Donor Site - Full thickness skin grafts or flaps may be used as needed to cover the donor site on the foot where the toe was removed, ensuring proper healing and aesthetic appearance.

3. Post-Procedure

After the toe-to-hand transfer procedure, patients typically require careful monitoring and follow-up care to ensure proper healing and integration of the transferred tissue. Post-operative care may include pain management, wound care, and physical therapy to promote mobility and function in the hand. Patients are advised to follow specific instructions regarding activity restrictions to avoid stress on the surgical site. The recovery process may vary depending on individual circumstances, but close observation of the anastomosis sites for signs of complications, such as infection or compromised blood flow, is essential. Regular follow-up appointments will be necessary to assess healing and functional outcomes.