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Zone 1 Flexor Tendon Repairs: Laceration and Avulsion Injuries
Saral J Patel1, Andrew J Miller2, A Lee Osterman2
1Philadelphia Hand to Shoulder Center, Philadelphia, PA, USA.
Hand Clinics
|April 20, 2023
Summary
Zone 1 flexor tendon injuries, including lacerations and avulsions, require specific surgical repair techniques. Despite challenges like stiffness, these repairs generally yield good patient satisfaction.
Area of Science:
- Orthopedic Surgery
- Hand Surgery
- Traumatology
Background:
- Zone 1 flexor tendon injuries present unique challenges compared to other hand zones.
- Injury mechanisms include both lacerations and avulsions, with avulsions often necessitating tendon-to-bone repair.
Purpose of the Study:
- To review the treatment and outcomes of Zone 1 flexor tendon injuries.
- To highlight the differences in management between laceration and avulsion injuries in Zone 1.
- To assess patient satisfaction following Zone 1 flexor tendon repair.
Main Methods:
- Review of existing literature on Zone 1 flexor tendon injuries.
- Analysis of treatment strategies for laceration versus avulsion mechanisms.
- Evaluation of factors contributing to outcomes, such as joint proximity and repair techniques.
Main Results:
- Zone 1 tendon lacerations are managed similarly to other zones.
- Zone 1 avulsion injuries frequently require tendon-to-bone repair.
- Proximity to the distal interphalangeal joint can lead to flexion contracture and stiffness.
Conclusions:
- Zone 1 flexor tendon repairs are generally well-tolerated.
- Despite potential complications like stiffness, fair to high patient satisfaction is commonly achieved.
