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The Os Peroneum incidence - A cadaveric study.

Maribel da Rocha Gomes1, André Pereira Pinto2, Alírio Arnoldo Fabián3

  • 1Department of Orthopedics, Hospital da Senhora da Oliveira, Guimarães, Portugal.

Foot and Ankle Surgery : Official Journal of the European Society of Foot and Ankle Surgeons
|May 16, 2019
PubMed
Summary
This summary is machine-generated.

The Os Peroneum (OP), a small bone in the Peroneus Longus Tendon, was found in 45% of dissected feet. Variability in OP presence and definition may explain differing prevalence rates in studies.

Keywords:
Os PeroneumPeroneal tendonSesamoid bone

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Area of Science:

  • Anatomy
  • Orthopedics
  • Podiatry

Background:

  • The Os Peroneum (OP) is a sesamoid bone within the Peroneus Longus Tendon (PLT) sheath, near the calcaneocuboid joint.
  • OP exhibits common size and shape variations, including multipartite forms.

Purpose of the Study:

  • To investigate the prevalence and morphological characteristics of the Os Peroneum.
  • To understand the variability in OP presence and shape in human specimens.

Main Methods:

  • Dissection of twenty cadaveric lower extremities.
  • Systematic examination of the Peroneus Longus Tendon sheath for the presence of OP.

Main Results:

  • Os Peroneum was identified in nine out of twenty feet (45%).
  • Six feet showed tendon thickening, and five feet had no identifiable OP.
  • Variations in OP presence were noted.

Conclusions:

  • The study found a 45% prevalence of Os Peroneum in the analyzed sample.
  • Discrepancies in OP definition across studies may contribute to reported prevalence variations.