Case Report
Copyright ©The Author(s) 2015. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Orthop. Apr 18, 2015; 6(3): 374-379
Published online Apr 18, 2015. doi: 10.5312/wjo.v6.i3.374
Subtalar dislocation without associated fractures: Case report and review of literature
Dionisios Giannoulis, Dimitrios V Papadopoulos, Marios G Lykissas, Panagiotis Koulouvaris, Ioannis Gkiatas, Alexandros Mavrodontidis
Dionisios Giannoulis, Dimitrios V Papadopoulos, Marios G Lykissas, Ioannis Gkiatas, Alexandros Mavrodontidis, Department of Orthopedics, University Hospital of Ioannina, 45332 Ioannina, Epirus, Greece
Panagiotis Koulouvaris, Department of Orthopedics, University Hospital “Attikon”, 12462 Haidari, Athens, Greece
Author contributions: All the authors equally contributed to this work.
Ethics approval: The study was reviewed and approved by the University Hospital of Ioannina Institutional Review Board.
Informed consent: All study participants, or their legal guardian, provided informed written consent prior to study enrollment.
Conflict-of-interest: There is no conflict of interest for all authors with any financial organization regarding the material discussed in the manuscript.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See:
Correspondence to: Dimitrios V Papadopoulos, Orthopedic Resident, Department of Orthopedics, University Hospital of Ioannina, 45332 Ioannina, Epirus, Greece.
Telephone: +30-265-1401792 Fax: +30-238-1024124
Received: September 21, 2014
Peer-review started: September 21, 2014
First decision: November 14, 2014
Revised: December 1, 2014
Accepted: March 5, 2015
Article in press: March 9, 2015
Published online: April 18, 2015

Isolated subtalar dislocations are unusual injuries due to the inherent instability of the talus. Subtalar dislocations are frequently associated with fractures of the malleoli, the talus, the calcaneus or the fifth metatarsal. Four types of subtalar dislocation have been described according to the direction of the foot in relation to the talus: medial, lateral posterior and anterior. It has been shown that some of these dislocations may spontaneously reduce. A rare case of a 36-year-old male patient who sustained a closed medial subtalar dislocation without any associated fractures of the ankle is reported. The patient suffered a pure closed medial subtalar dislocation that is hardly reported in the literature. Six months after injury the patient did not report any pain, had a satisfactory range of motion, and no signs of residual instability or early posttraumatic osteoarthritis. The traumatic mechanism, the treatment options, and the importance of a stable and prompt closed reduction and early mobilization are discussed.

Keywords: Subtalar, Dislocation, Talus, Calcaneus, Isolated, Medial

Core tip: Isolated subtalar dislocations are rare injuries. Subtalar dislocations occur typically in combination with fractures of the adjacent bones such as malleoli, talus, and calcaneus. In this case report of an isolated subtalar dislocation, a successful outcome was achieved after immediate reduction and a 4-wk period of immobilization. This manuscript highlights the importance of prompt reduction and short period of immobilization in order to avoid complications, such as stiffness and arthritis.