Retinacula musculorum peroneorum

Outside view of the right foot showing the tendon sheaths and ligaments

Small bone shell on the outer ankle in the X-ray image as a correlate for an avulsion of the peroneal retinaculum. In this case the tendon of the musculus peroneus brevis was partially dislocated.

The retinacula musculorum peroneorum or retinacula peronealia ( singular : Retinaculum peroneale) are ligaments on the outside of the foot that guide the tendons of the musculus peroneus longus and the musculus peroneus brevis with their tendon sheaths around the outer ankle or secure them back and down. An injury to the ligaments can lead to total or partial dislocation of the tendons to the front and outside. A distinction is made between two parts:

• The retinaculum musculorum peroneorum superius runs obliquely backwards and downwards from the outer ankle to the heel bone and variably to the Achilles tendon .
• The retinaculum musculorum peroneorum inferius, as the lower, outer continuation of the retinaculum extensorum inferius, also extends obliquely back and down to the heel bone.

Sources and literature

• Daniel Bodor, MD: " MRI Web Clinic - October 2006: Peroneal Tendon Dislocation and Superior Peroneal Retinaculum Injury " at http://radsource.us
• Xiao-Tian Wang et al .: " Normal Variants and Diseases of the Peroneal Tendons and Superior Peroneal Retinaculum: MR Imaging Features ", Radiographics May-June 2005 Volume 25, Issue 3

This article is about a health issue. It is not used for self-diagnosis and does not replace a diagnosis by a doctor. Please note the information on health issues !