Medial subtalar dislocation : (report of four cases and revie of literature)‎

Abstract EN

This paper presents a report offour patients with isolated mediai subtalar dislocations treated at King Khalid University hospital during ,January 1988 to Deeember وول©.

All the patients were male with an average age of twenty four years.

The ؛juries were closed and caused by forceful inversion of the forefoot while playing football.

They were treated by elosed reduction and below knee plaster cast immobilisation with excellent results.

Isolated subtalar dislocation of the foot is a rare in-jury and only few reports are available in the literature’’^.

It occurs when there is simultaneous dislocation of the talonavicular joint and talocalcaneal joints According to the direction of displacement of the foot, the subtalar dis-location can be medial, lateral, anterior or posterior.

The common mechanism of injury is motor vehicle accident or fall from a height causing foreeful inversion of the fore-foot during which the neck of the talus pivots with the sustentaculum tali as a fulerum, resulting in dislocation of the talonavicular joint followed by dislocation of the subtalar joint3'4.

The incidence of complications includ-ing stiffness and arthritis of subtalar joint are high5.

Be-cause of the assoeiated intra articular fractures of subtalar and talonavicular joint, open reduction and immobilisa-tion for long periods contribute to poor results؛.

We report four eases of medial subtalar dislocation where immediate closed reduction and early immobilisa-tion showed excellent results