International Journal of Research in Orthopaedics | January-February 2021 | Vol 7 | Issue 1 Page 156 International Journal of Research in Orthopaedics Nair SG et al. Int J Res Orthop. 2021 Jan;7(1):156-158 http://www.ijoro.org Case Report Medial swivel dislocation of talonavicular joint due to low energy trauma Syam Gangadharan Nair*, Sudheesh Vasanthakumari Sreeramakrishnan Nair, Sachin Joseph, Arun Chand Surendran INTRODUCTION Mid tarsal joint dislocations are very rare injuries of the foot and ankle. Most of these injuries are due to major trauma. Incidence is estimated at 3.6/100.000/year. 1 The rigid bony and ligamentous support surrounding the mid tarsal joints are responsible for fracture and dislocation rather than pure dislocation involving these joints. 2 Isolated dislocations of talonavicular joint is caused by severe abduction or adduction injury to the fore foot. Main and Jowett described these injuries in detail and proposed a classification system for talonavicular joint dislocation based on the mechanism of injury. 3 We report a case of medial swivel dislocation of talonavicular joint caused by a low energy trauma, its management and one year follow up result. CASE REPORT A 72-year-old female patient presented to the emergency department with history of twisting injury to left foot and ankle following slip and fall at home. Patient complained of pain, oedema and inability to bear weight over left foot. Clinical examination revealed diffuse oedema over left foot and an abrasion over dorsal aspect of mid foot (Figure 1). Neuro vascular status of the foot was intact. She denies any significant past medical history such as diabetes mellitus, inflammatory arthropathy or regular intake of any medications. Anteroposterior and oblique radiograph revealed isolated medial dislocation of talonavicular joint with a compression defect on antero medial aspect of head of talus. Rest of the bones and joints of foot and ankle were normal (Figure 2). There was no radiological evidence of Charcots arthropathy or inflammatory arthritis. Figure 1: Clinical picture of foot of oedema and medial fullness. ABSTRACT Medial swivel variant of talonavicular dislocation is rare. Usually, it is caused by high velocity trauma. They are relatively easier to reduce and are associated with fewer complications than pure dorsal dislocations and sub talar dislocations. We report a case of medial swivel dislocation of talonavicular caused by a low energy trauma, its management and one year follow up result. Keywords: Talonavicular dislocation, Swivel variant, Subtalar dislocation Department of Orthopedics, ESIC Model and Super speciality hospital, Asramam, Kollam, Kerala, India Received: 17 September 2020 Accepted: 29 October 2020 *Correspondence: Dr. Syam Gangadharan Nair, E-mail: syamgangan@gmail.com Copyright: © the author(s), publisher and licensee Medip Academy. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. DOI: https://dx.doi.org/10.18203/issn.2455-4510.IntJResOrthop20205580 A B