Naoko Mizuno1, Minoru Yoneda2, Shigeto Nakagawa3, Kenji Hayashida4. 1. Department of Orthopaedic Surgery, Toyonaka Municipal Hospital, 4-14-1 Shibaharacho, Toyonaka-shi, 560-8565, Osaka, Japan. nao-miz@hcc5.bai.ne.jp. 2. Arthroscopy and Sports Medicine Center, Nakanoshima Iwaki Hospital, 3-2-9 Fukushima, Fukushima-ku, Osaka-shi, 553-0003, Osaka, Japan. 3. Department of Sports Orthopaedic Surgery, Yukioka Hospital, 2-2-3 Ukita, Kita-ku, Osaka-shi, 530-0021, Osaka, Japan. 4. Department of Orthopaedic Surgery, Osaka Police Hospital, 10-31 Kitayama-cho, Tennoji-ku, Osaka-shi, 543-0035, Osaka, Japan.
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.
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.
Entities:
Keywords:
Anterior capsular mechanism; Arthroscopy; Capsular tear; Patients over 40 years of age; Recurrent anterior shoulder dislocation
Authors: Ali Hassan Chamseddine; Ibrahim M Haidar; Oussama M El Hajj; Hadi K Zein; Ali M Bazzal; Abdullah A Alasiry; Nader A Mansour; Amer C Abdallah Journal: Int Orthop Date: 2018-08-29 Impact factor: 3.075