The inferior peroneal retinaculum runs from the inferior extensor retinaculum to the lateral calcaneus, constraining the peroneal tendons as they curve around the peroneal trochlea.
Maintains the peroneal tendons in their tunnels around the peroneal trochlea, preventing displacement during foot movement.
A hypertrophied peroneal trochlea can compress the peroneal tendons within the inferior retinaculum tunnel producing tenosynovitis. Trochlea resection and retinaculum reconstruction addresses this impingement.
Enlarged peroneal trochlea compressing tendons in the inferior retinaculum tunnel, treated by trochlear resection.
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