Peroneal tendon subluxation
Appear to occur from rapid dorsiflexion (+/- forced eversion) of foot followed by vigorous contraction or peroneals (eg skiing)..
Patient usually fells a ‘snap’.
Swelling and bruising over lateral ankle; may have heard a snap; moderate to severe pain; palpable dislocated tendon – especially if foot is actively plantarflexed and dorsiflexed
Can be misdiagnosed as a sprained ankle.
Spontaneous relocation can occur, but may become a chronic dislocating tendon
Non-weightbearing cast for 6 weeks
Surgical reconstruction of peroneal retinaculum.