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Peroneus Longus Tendoscopy at the Sole: A Cadaveric Study.

Tun Hing Lui1, Chong Yin Damian Mak1

  • 1Department of Orthopaedics and Traumatology, North District Hospital, Hong Kong SAR, China.

Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association
|March 25, 2015
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Summary

Tendoscopy of the peroneus longus (PL) tendon at the sole is feasible but carries risks. The lateral plantar nerve may be endangered, requiring cautious surgical approach.

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Area of Science:

  • Anatomy
  • Surgical Procedures
  • Foot and Ankle Surgery

Background:

  • Peroneus longus (PL) tendinopathy often affects the sole.
  • Tendoscopy offers a minimally invasive approach for PL tendon pathologies.
  • Understanding the anatomical risks is crucial for safe tendoscopy.

Purpose of the Study:

  • To evaluate the safety of tendoscopy for the peroneus longus (PL) tendon at the sole using a cadaveric model.
  • To define optimal portal locations for PL tendoscopy.
  • To assess the relationship between the PL tendon sheath and surrounding neurovascular structures.

Main Methods:

  • Twelve fresh-frozen cadaveric foot and ankle specimens were utilized.
  • Plantar medial and lateral portal placements were identified and measured.
  • The proximity of the medial and lateral plantar nerves to the PL tendon sheath was examined.

Main Results:

  • Specific anatomical landmarks for plantar medial and lateral portal placement were established.
  • The lateral plantar nerve was in direct contact with the PL tendon sheath in 8 specimens.
  • The medial plantar nerve was consistently separated from the PL tendon sheath by other tendons.

Conclusions:

  • Tendoscopy of the PL tendon at the sole is anatomically described.
  • The lateral plantar nerve is at risk during this procedure, necessitating careful technique.
  • This cadaveric study provides essential anatomical data for performing PL tendoscopy safely.