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Related Experiment Videos

Tibialis posterior tendon dysfunction: a primary or secondary problem?

J S Yeap1, D Singh, R Birch

  • 1Royal National Orthopaedic Hospital, Stanmore, Middlesex, England.

Foot & Ankle International
|February 24, 2001
PubMed
Summary
This summary is machine-generated.

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Tibialis posterior tendon transfer can restore foot dorsiflexion without inevitable dysfunction. Pre-existing flatfoot may predispose patients to tibialis posterior tendon dysfunction, explaining some surgical failures.

Area of Science:

  • Orthopedic Surgery
  • Biomechanics
  • Podiatry

Background:

  • Tibialis posterior tendon dysfunction (TPTD) is a common cause of adult-acquired flatfoot.
  • Tendon transfers are used to restore foot function, but long-term outcomes and potential complications like TPTD require investigation.

Purpose of the Study:

  • To evaluate the incidence of tibialis posterior tendon dysfunction (TPTD) following tibialis posterior tendon transfer for foot dorsiflexion.
  • To identify potential risk factors for TPTD after this procedure.

Main Methods:

  • Clinical examination of 17 patients with a mean follow-up of 64.4 months post-tibialis posterior tendon transfer.
  • Assessment of eversion strength, foot posture (Harris-Beath footprints), forefoot abduction, hindfoot valgus, and single-heel rise capability.

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Main Results:

  • No patients developed clinical flatfoot, and only 6% showed forefoot abduction or 17% hindfoot valgus.
  • 47% demonstrated Grade 4 or better eversion power, and 82% could perform a single-heel rise.
  • TPTD did not appear to be an inevitable complication, even with a functioning peroneal muscle.

Conclusions:

  • Tibialis posterior tendon transfer can be successful in restoring dorsiflexion without leading to TPTD.
  • A pre-existent tendency towards flatfoot may be a crucial factor in the development of TPTD and may explain long-term failures of other tendon transfer surgeries.