Abstract
Purpose
We evaluated the pathologies of anterior capsular mechanism in older patients with recurrent anterior shoulder dislocation in the absence of full-thickness rotator cuff tears.
Methods
Three hundred and ninety-five shoulders with recurrent anterior shoulder dislocation were assessed. The patients were divided into three groups by the age at the first dislocation and the surgical treatment: group A (onset and treatment were at an age over 40 years), group B (onset was at an age under 40 years and treatment was at an age over 40 years) and group C (onset and treatment were at an age under 40 years). Groups A, B and C involved nine, 31 and 355 shoulders, respectively.
Results
The prevalence of an isolated Bankart lesion was 81.7 % in group C, 33.3 % in group A and 64.5 % in group B, and each of A and B was significantly lower than group C. The prevalence of an isolated capsular tear was 3.1 % in group C, while it was 33.3 % in group A, which was significantly higher.
Conclusions
The prevalence of an isolated Bankart lesion was low and the prevalence of a capsular tear was high in older patients. We should keep in mind the existence of a capsular tear in older patients and examine the whole anterior capsular mechanism meticulously.
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Compliance with ethical standards
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. For this type of study formal consent is not required. This article does not contain any studies with human participants or animals performed by any of the authors. Informed consent was obtained from all individual participants included in the study.
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The authors declare that they have no conflict of interest.
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Mizuno, N., Yoneda, M., Nakagawa, S. et al. The pathology of the anterior capsule in patients over forty years of age with recurrent shoulder dislocation. International Orthopaedics (SICOT) 40, 81–86 (2016). https://doi.org/10.1007/s00264-015-2864-x
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DOI: https://doi.org/10.1007/s00264-015-2864-x