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Related Experiment Video

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Author Spotlight: Integrating Mechanical and Biological Analysis in Tendinopathy Research
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Intrasheath Peroneal Tendon Subluxation: A Report of Three Cases with Technical Note.

Raquel Lima Cunha1, Alexandre Castro1, Pedro Atilano Carvalho1,2

  • 1Departamento de Ortopedia e Traumatologia, Centro Hospitalar Entre o Douro e Vouga, Santa Maria da Feira, Portugal.

Revista Brasileira De Ortopedia
|December 23, 2024
PubMed
Summary

Peroneal intrasheath instability, a rare lateral ankle condition, involves peroneal tendon subluxation. Surgical repair using groove-deepening and retinaculoplasty offers successful outcomes when conservative methods fail.

Keywords:
ankle injuries/diagnostic imagingjoint instabilitytendon injuries/diagnostic imagingtendons/diagnostic imagingultrasonography

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Area of Science:

  • Orthopedics
  • Sports Medicine
  • Anatomy

Background:

  • Peroneal intrasheath instability is characterized by painful clicking and popping in the lateral ankle.
  • This condition involves transient retromalleolar subluxation of peroneal tendons with intact superior peroneal retinaculum.
  • Its exact incidence is unknown due to infrequent reporting.

Purpose of the Study:

  • To describe diagnostic methods for peroneal intrasheath instability.
  • To evaluate a surgical technique for treating this pathology.
  • To report outcomes of surgical intervention for peroneal intrasheath instability.

Main Methods:

  • Diagnosis relies on high clinical suspicion.
  • Dynamic ultrasound is the preferred imaging modality for intact superior peroneal retinaculum cases.
  • Surgical treatment involved peroneal groove-deepening and superior retinaculoplasty.

Main Results:

  • Three cases of peroneal intrasheath instability were successfully treated surgically.
  • The described surgical technique yielded good outcomes.
  • Surgical intervention proved effective when conservative treatments were unsuccessful.

Conclusions:

  • Peroneal intrasheath instability requires specific diagnostic approaches, including dynamic ultrasound.
  • Peroneal groove-deepening and retinaculoplasty is an effective surgical treatment.
  • This surgical technique provides favorable results for patients with peroneal intrasheath instability.