Pure Closed Posteromedial Dislocation of the Tibiotalar Joint without Fracture

Abstract

Pure tibiotalar dislocation without an associated fracture is an extremely rare injury. We present three cases of closed posteromedial tibiotalar dislocation without any associated fractures to the foot, ankle, or leg. All patients were treated conservatively with immediate closed reduction under general or local anaesthesia and immobilised in a short leg cast for six weeks without weight-bearing resulting in a satisfactory outcome at the final follow-up. A review of the literature is also presented in this paper.

Isolated Posterior Medial Ankle Dislocation with Associated Os Trigonum Dislocation after Low-Energy Mechanism

“…Furthermore, our study corroborates the findings of multiple other authors in that ankle dislocations, without malleolar fracture, can be treated nonoperatively with good results [2][3][4][5][6][7][8][9][10]. This is likely due to the intact deltoid ligament and maintained blood supply.…”

“…Ankle dislocation without an associated fracture (pure ankle dislocation) is a rare injury accounting for only 0.065% of all ankle injuries [1]. Due to its rarity, pure ankle dislocations are not well understood with only case reports and small case series being described in the literature [2][3][4][5][6][7][8][9][10]. Even more unusual is a pure ankle dislocation with associated dislocation of an os trigonal process.…”

Treatment of open ankle dislocation without associated fractures in a young athlete using external fixation and ligament repair with suture tape augmentation

“…The occurrence of ankle dislocation without accompanying fractures is an extremely rare event [1][2][3][4]. This condition is referred to as "pure dislocation" because it is usually accompanied by concomitant malleolar fractures from an anatomical and mechanical perspective.…”

Bilateral closed posterior ankle dislocation without fracture in a professional footballer: an unusual case report and literature review

“…However, the tibial coverage on the talus is normal in all reported cases. It is no longer considered as a risk factor of ankle dislocation without fracture [7,15,24,28]. In our case, as the patient is a professional footballer who has been playing football at the competitive level for the last 8 years, we attribute the bilateral ankle dislocation without fracture to unrecognized multiple mild sprains (micro-traumas) which he may had previously during training or competitive matches.…”

“…Fahey and Murphy have classifi ed ankle dislocation without fracture in 5 subtypes depending on the direction of displacement: anterior, posterior, medial, lateral and superior [21,[26][27][28][29]. However, association patterns may be found in some cases, and the posteromedial ankle dislocation is the most frequent subtype [14,24,30,31].…”