Chondral and osteochondral injuries associated with acute patellar dislocation.

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Abstract

[Indexed for MEDLINE] 20. BMJ Case Rep. 2022 Mar 9;15(3):e248398. doi: 10.1136/bcr-2021-248398. Arthroscopically reduced, irreducible patella dislocation. Tanos P(1), Farook MZ(2), Volpin A(2). Author information: (1)Institute of Applied Health Sciences, University of Aberdeen, Aberdeen, UK p.tanos.17@abdn.ac.uk. (2)Trauma and Orthopaedics, Dr Gray's Hospital, Elgin, UK. Acute patella dislocations account for approximately 2%-3% of knee injuries and are therefore a relatively common presentation in the accident and emergency department. The majority of patella dislocations can be reduced with simple manoeuvres or even spontaneously and can be managed conservatively by bracing and rehabilitation. The aim of this study is to identify and review the main causes of the unique and unexpected event of irreducible patella dislocation and their characteristic presentations. Irreducible patella dislocations can happen but are very rare. Currently, a limited number of case reports are available, prompting for a need for research on this topic. This case study can shed light on the possible pathogenesis and pathognomonic features of irreducible patella dislocations and provide insight on the available therapeutic approaches. © BMJ Publishing Group Limited 2022. No commercial re-use. See rights and permissions. Published by BMJ. DOI: 10.1136/bcr-2021-248398 PMCID: PMC8915408