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Updated: Jun 19, 2026

Measurement of Healthy and Injured Triceps Surae Morphology
08:48

Measurement of Healthy and Injured Triceps Surae Morphology

Published on: October 27, 2023

Achilles lengthening procedures.

Lan Chen1, Justin Greisberg

  • 1Department of Orthopedic Surgery, Columbia University Medical Center, 622 West 168th Street, PH11-Center, New York, NY 10032, USA.

Foot and Ankle Clinics
|October 28, 2009
PubMed
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Tight gastrocnemius and soleus muscles cause equinus deformity, a common hindfoot issue in children and adults. This condition is linked to various pathologies and can be diagnosed by limited ankle dorsiflexion.

Area of Science:

  • Orthopedics
  • Podiatry
  • Human Anatomy

Background:

  • Gastrocnemius-soleus complex contracture leads to equinus deformity, a prevalent hindfoot condition.
  • In children, this is often associated with neuromuscular disorders like cerebral palsy.
  • In adults, it's linked to conditions such as adult-acquired flatfoot, diabetic neuropathic ulcers, and plantar fasciitis.

Purpose of the Study:

  • To review the anatomical and evolutionary basis of human foot structure.
  • To discuss the implications of gastrocnemius tightness.
  • To detail operative procedures for muscle lengthening.

Main Methods:

  • Review of anatomical and evolutionary factors influencing foot structure.
  • Analysis of clinical implications of gastrocnemius contracture.

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  • Description of surgical techniques including proximal gastrocnemius recession, tendo-Achilles lengthening, and endoscopic recession.

    • Main Results:

    • Contracture is indicated by failure to achieve 10 degrees of passive ankle dorsiflexion with the knee flexed and extended.
    • Various operative releases can lengthen the gastrocnemius-soleus complex.
    • Specific surgical techniques are detailed for addressing equinus deformity.

    Conclusions:

    • Gastrocnemius-soleus contracture is a significant factor in hindfoot pathology across age groups.
    • Understanding foot anatomy and evolutionary basis is crucial for managing these conditions.
    • Surgical interventions provide effective solutions for gastrocnemius-soleus complex contractures.