Case Report: Irreducible Ankle Fracture With Posterior Tibialis Tendon and Retinaculum, Deltoid Ligament, and Anteromedial Joint Capsule Entrapment

J Foot Ankle Surg. Jul-Aug 2017;56(4):889-893. doi: 10.1053/j.jfas.2017.04.004.


Irreducible ankle fractures are a relatively rare phenomenon. We present a case of a pronation abduction-type ankle fracture that was irreducible in the emergency room despite sedation. The patient was taken to the operating room, where the posterior tibialis tendon and retinaculum, deltoid ligament, and anteromedial capsule were found to be trapped within the joint. After removal of the tissue, alignment was restored. The patient did well clinically and was advanced to full weightbearing at 6 weeks. This is, to the best of our knowledge, the first report of entrapment of all 4 anatomic structures, preventing closed reduction.

Keywords: ankle fracture; deltoid; entrapment; fracture-dislocation; incarceration; irreducible; posterior tibialis; retinaculum.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Ankle Fractures / surgery*
  • Humans
  • Joint Capsule / injuries
  • Joint Capsule / surgery*
  • Ligaments, Articular / injuries
  • Ligaments, Articular / surgery*
  • Male
  • Soft Tissue Injuries / surgery*
  • Tendon Entrapment / surgery*
  • Tendon Injuries / surgery*