Endoscopic Transfer of Flexor Hallucis Longus Tendon for Chronic Achilles Tendon Rupture

  • End date
    Feb 14, 2024
  • participants needed
  • sponsor
    Oslo University Hospital
Updated on 14 March 2021


The transfer of Flexor Hallucis Longus (FHL) in the management of chronic Achilles tendon ruptures has demonstrated good functional outcome, but an extensive surgical field at a vulnerable location may lead to increased risk for soft tissue problems. The arthroscopic FHL transfer may reduce the risk for soft tissue problems. Functional outcome parameters are investigated, wound/soft tissue complications registered.


The transfer of FHL in the management of chronic Achilles tendon ruptures has demonstrated good functional outcome with American Orthopaedic Foot ane Ankle Society (AOFAS) hindfoot scores at 80-89. The extensive surgical field by either a two-incision approach or a single longitudinal posterior approach to the Achilles tendon may lead to an increased risk for soft tissue problems, both infections and wound healing problems. The endoscopic FHL transfer may reduce the risk for soft tissue problems while retaining a good functional outcome. Several functional outcome measures and scores are evaluated a year after surgery.

Prospective study for evaluation of the surgical procedure.

Condition Achilles Tendon Rupture
Treatment FHL transfer
Clinical Study IdentifierNCT02996253
SponsorOslo University Hospital
Last Modified on14 March 2021


Yes No Not Sure

Inclusion Criteria

Chronic Achilles Tendon Rupture

Exclusion Criteria

BMI<18.5 or >39.9
Insufficient Norwegian Language proficiency lack of communication skills local skin conditions at site for planned surgery
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