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Summary
Secondary tendon repair in zones 1-6 addresses various injuries, including adhesions, dislocations, and ruptures. Procedures like tenolysis, grafts, and tendon transfers are crucial for restoring function after primary repair failure.
Area of Science:
- Orthopedic surgery
- Hand surgery
- Reconstructive surgery
Context:
- Secondary tendon repair addresses complications from primary surgical interventions in specific zones of the hand.
- Injuries discussed include adhesions, tendon dislocations, and ruptures within the extensor apparatus.
- Management strategies vary based on the zone and nature of the injury.
Purpose:
- To outline secondary repair procedures for extensor tendon injuries across zones 1-6.
- To detail specific surgical techniques and considerations for each zone.
- To provide guidance on managing complications and failures of primary tendon repairs.
Summary:
- Zone 6 secondary repair involves tenolysis, tendon grafts, or tendon transfer.
- Zone 5 tenolysis is indicated for adhesions, with extensor retinaculum interposition for protection.
- Zone 4 requires reestablishing tendon connections, especially with supernumerary tendons.
- Hood lesions causing extensor tendon dislocation necessitate secondary repair, tenolysis, or tendon lengthening.
- Button-hole deformities (zone 2) and untreated lesions share similar repair indications, with Fowler, Matev, and Pieper procedures preferred.
- Zone 1 extensor apparatus rupture after primary repair requires secondary suture, tendon-plasty, or Pulvertaft tenorrhaphy.
Impact:
- Provides a comprehensive overview of secondary extensor tendon repair strategies.
- Offers guidance for surgeons managing complex hand tendon injuries.
- Aims to improve functional outcomes for patients with failed primary tendon repairs.