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Talonavicular coalition. Objective gait analysis

J Pontious1, H J Hillstrom, T Monahan

  • 1Department of Podiatric Surgery, Pennsylvania College of Podiatric Medicine, Philadelphia.

Journal of the American Podiatric Medical Association
|July 1, 1993
PubMed
Summary
This summary is machine-generated.

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Talonavicular coalition, a fusion of the talus and navicular bones, can cause biomechanical limitations. Instrumented gait analysis revealed abnormal ankle torque, foot pressure, and stance phase in a patient with bilateral talonavicular coalition.

Area of Science:

  • Orthopedics
  • Biomechanics
  • Podiatry

Background:

  • Talonavicular coalition is a rare fusion between the talus and navicular bones.
  • It is often an incidental radiographic finding and can be asymptomatic or linked to peroneal spasm.

Observation:

  • This study presents a literature review and a case report of a patient with bilateral talonavicular coalition.
  • The patient underwent comprehensive clinical evaluation and instrumented gait analysis, including kinetic, kinematic, muscle dynamometry, and pedobarographic testing.

Findings:

  • The bilateral talonavicular coalition was associated with an excessive passive component of ankle torque.
  • Elevated first metatarsophalangeal joint plantar pressure and a reduced time in the midstance phase of the gait cycle were observed.

Related Experiment Videos

  • These biomechanical alterations were compared to those of healthy individuals.

    • Implications:

    • Objective gait analysis can identify biomechanical limitations associated with talonavicular coalitions.
    • Understanding these limitations is crucial for developing targeted treatment strategies.
    • This case highlights the utility of advanced gait analysis in evaluating rare foot and ankle pathologies.