Lateral pain • tear • tendon instability
Peroneal tendon disorders
The peroneal tendons run behind the outer ankle bone and help stabilise the foot and ankle. They can develop tendinopathy, split tears, ruptures or instability.
What symptoms may suggest this condition?
- Pain behind or below the outer ankle bone, sometimes after repeated sprains.
- Snapping or a feeling that the tendon “jumps” with certain movements.
- Weakness, swelling or associated lateral instability.
How is the diagnosis confirmed?
Examination looks for tenderness along the tendons, instability and possible cavovarus alignment. Dynamic ultrasound can demonstrate instability; MRI helps define tears or ruptures.
Is surgery always necessary?
Treatment may include temporary activity reduction, physiotherapy, strengthening, correction of biomechanical factors and sometimes short immobilisation during painful phases.
When should surgery be discussed?
Surgery depends on the lesion: tendon repair, debridement of degenerative tissue, stabilisation of an unstable tendon or reconstruction for major tears. Alignment correction or ligament stabilisation may be added when needed.
Source patient : AOFAS / AAOS. General information, to be adapted to each clinical situation.
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