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Related Experiment Videos

Gait pattern analysis after ankle ligament reconstruction (modified Evans procedure)

H P Becker1, D Rosenbaum, G Zeithammer

  • 1Department of Traumatology, Military Hospital, Ulm, Germany.

Foot & Ankle International
|September 1, 1994
PubMed
Summary
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The modified Evans procedure for chronic ankle instability shows 87% good outcomes, but 40% experience residual pain. Gait analysis reveals altered foot loading post-surgery, though not linked to current outcomes.

Area of Science:

  • Orthopedic surgery
  • Biomechanics
  • Sports medicine

Background:

  • Chronic ankle instability significantly impacts quality of life.
  • Surgical interventions aim to restore stability and function.
  • The modified Evans procedure is one surgical option for chronic ankle instability.

Purpose of the Study:

  • To evaluate the long-term outcomes of the modified Evans procedure.
  • To assess changes in plantar pressure distribution and gait after surgery.
  • To correlate clinical outcomes with biomechanical findings.

Main Methods:

  • Prospective follow-up of 38 patients undergoing modified Evans procedure.
  • Clinical evaluation using questionnaires and physical examination at an average of 68 months.

Related Experiment Videos

  • Gait analysis including plantar pressure distribution measurements compared to 100 healthy controls.

    • Main Results:

    • 87% of patients reported good or excellent subjective outcomes.
    • 40% of patients experienced residual pain.
    • Gait analysis showed a 22% increase in midfoot loading, indicating restricted inversion.
    • Plantar pressure changes did not correlate with current clinical outcomes.

    Conclusions:

    • The modified Evans procedure yields high subjective satisfaction for chronic ankle instability.
    • Post-surgical biomechanical changes, specifically increased midfoot loading, are evident.
    • The long-term clinical implications of these altered plantar pressure patterns remain uncertain.