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Related Experiment Videos

Flexor tendon repair in zone 2C

J B Tang1

  • 1Department of Orthopaedics, Affiliated Hospital of Nantong Medical College, Jiangsu, China.

Journal of Hand Surgery (Edinburgh, Scotland)
|February 1, 1994
PubMed
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For zone 2C finger injuries, repairing only the flexor digitorum profundus (FDP) tendon with excision of the flexor digitorum superficialis (FDS) tendon yields comparable results to repairing both tendons. This approach may reduce re-operation rates for tendon injuries.

Area of Science:

  • Orthopedic Surgery
  • Hand Surgery
  • Traumatology

Background:

  • Zone 2C of the hand, often called 'no man's land', presents complex challenges for flexor tendon injuries.
  • Lacerations involving both the flexor digitorum superficialis (FDS) and flexor digitorum profundus (FDP) tendons require careful surgical consideration.

Purpose of the Study:

  • To compare the clinical outcomes of repairing both FDS and FDP tendons versus repairing only the FDP tendon with FDS excision in zone 2C injuries.
  • To evaluate the efficacy of different surgical strategies for combined FDS and FDP tendon lacerations in zone 2C.

Main Methods:

  • A randomized prospective clinical study involving 33 patients (37 fingers) with zone 2C FDS and FDP tendon lacerations.
  • Group 1: Repair of both FDS and FDP tendons (19 fingers).

Related Experiment Videos

  • Group 2: Repair of FDP tendon with regional excision of FDS tendon (18 fingers).
  • Outcomes were assessed using the Total Active Motion (TAM) system after an average 12-month follow-up.

    • Main Results:

    • No significant difference in final outcomes was observed between the two groups based on the TAM system.
    • Average TAM was 204 degrees for FDP-only repair and 187 degrees for repair of both tendons.
    • The group undergoing repair of both tendons exhibited a higher incidence of re-operation due to adhesions or repair rupture.

    Conclusions:

    • Repairing only the FDP tendon with regional excision of the FDS tendon is a viable and potentially advantageous strategy for combined injuries in zone 2C.
    • This approach may lead to fewer complications, such as adhesions and repair failures, compared to repairing both tendons.
    • Surgical decision-making for zone 2C injuries should consider the benefits of FDP-only repair.