In plain language
Abnormal movement of the peroneal tendons within or out of the groove behind the lateral malleolus, often involving the superior retinaculum.
Clinical Significance & Management
Distinguish acute, recurrent and intrasheath patterns, and assess tears or ligament injury. Selected acute non-athlete cases may try immobilization with recurrence counseling; athletes and chronic symptomatic cases often discuss stabilization.
Symptoms & Clinical Presentation
Posterolateral snapping, pain or swelling
Instability with cutting or eversion weakness
Etiology & Injury Mechanisms
- Forceful contraction with dorsiflexion and eversion
- Retinacular injury and anatomical crowding or groove factors
Diagnostics & Imaging Guide
Examination and dynamic ultrasound
MRI for tendons/retinaculum; radiographs for fractures
Treatment Options
Selected immobilization followed by strength and balance work
Retinacular repair, tendon treatment or groove work as appropriate
Rehabilitation Milestones & Timeline
Rehabilitation depends on the diagnosis, procedure and associated injuries. Progression requires assessment of healing, symptoms and function; elapsed time or a single test cannot determine readiness for sport.
Protect
Avoid snapping maneuvers; loading follows the treatment plan
Recover
Restore motion, eversion strength and balance after clearance
Sport
Progress running and cutting without painful recurrent snapping
Evidence-Based Clarifications
Normal static MRI cannot exclude dynamic displacement. Painless noise alone differs from symptomatic instability.
Sources & References
Peroneal Tendon Injuries
American College of Foot and Ankle Surgeons (ACFAS)
The ESSKA-AFAS international consensus statement on peroneal tendon pathologies (2018)
ESSKA-AFAS / Knee Surgery, Sports Traumatology, Arthroscopy
Educational clinical definitions synthesized from AAOS, Cleveland Clinic, Mayo Clinic, and HSS. Individual diagnosis and surgery require professional medical evaluation.
Publication date
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