Relationship between shoulder abduction strength and rotator cuff tear in elderly women: a general population study
Objectives To investigate the effect of age-related rotator cuff tears on shoulder strength in a general population cohort.Design Cross sectional observational study.Setting This study was set in an outpatient clinic setting in Chingford, North East London, and was a component of the 20 year visit o...
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| Формат: | Статья |
| Язык: | English |
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BMJ Publishing Group
2023-07-01
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| Серии: | BMJ Open |
| Online-ссылка: | https://bmjopen.bmj.com/content/13/7/e071908.full |
| _version_ | 1827172627554238464 |
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| author | Andrew J Carr Nigel K Arden Hannah Hinsley Charlotte Ganderton |
| author_facet | Andrew J Carr Nigel K Arden Hannah Hinsley Charlotte Ganderton |
| author_sort | Andrew J Carr |
| collection | DOAJ |
| description | Objectives To investigate the effect of age-related rotator cuff tears on shoulder strength in a general population cohort.Design Cross sectional observational study.Setting This study was set in an outpatient clinic setting in Chingford, North East London, and was a component of the 20 year visit of the Chingford 1000 women cohort.Participants Individuals were part of the Chingford 1000 women cohort, a 20-year-old longitudinal population study. This cohort has been extensively characterised as representative of the population of the UK. At the 20 year visit, 446 attended for shoulder assessment and were aged between 64 and 87.Primary and secondary outcome measures Isometric shoulder abduction strength measured using a Nottingham Mecmesin Myometer and the presence of rotator cuff pathology, determined via ultrasound examination (GE voluson i portable ultrasound machine with a 10-16MHz linear probe). Shoulders were classified into normal, abnormal tendon/partial tear, full-thickness tears (>0 and ≤2.5 cm) and full-thickness tears (>2.5 cm). Symptoms were defined using the Oxford Shoulder Score, where an abnormal score was defined as symptomatic.Results 446 women (891 shoulders) aged 71 (range 65–84) were included in the study. Age, the presence of pain and the non-dominant arm were demonstrated to reduce strength. Rotator cuff tears and pathology had no isolated effect on shoulder strength in those aged under 70. However, in the over 70s full-thickness tears>0 and ≤2.5 cm, and >2.5 cm had mean reductions of 6.3 and 12.7 N, respectively (p<0.001).Conclusion Rotator cuff tears of all sizes in those aged under 70 were not associated with a loss of shoulder strength. In those aged over 70, strength was reduced by 30% with small and 40% with large full thickness tears. Loss in strength was associated a loss of ability to perform activities of daily living but only for large tears. |
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| format | Article |
| id | doaj.art-c9f985b9e442494e828e88a6d376297a |
| institution | Directory Open Access Journal |
| issn | 2044-6055 |
| language | English |
| last_indexed | 2025-03-21T03:26:46Z |
| publishDate | 2023-07-01 |
| publisher | BMJ Publishing Group |
| record_format | Article |
| series | BMJ Open |
| spelling | doaj.art-c9f985b9e442494e828e88a6d376297a2024-08-01T00:10:10ZengBMJ Publishing GroupBMJ Open2044-60552023-07-0113710.1136/bmjopen-2023-071908Relationship between shoulder abduction strength and rotator cuff tear in elderly women: a general population studyAndrew J Carr0Nigel K Arden1Hannah Hinsley2Charlotte Ganderton3Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UKDepartment of Orthopaedics Rheumatology and Musculoskeletal Sciences, University of Oxford Nuffield, Oxford, Oxfordshire, UKNuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UKNursing and Allied Health, Swinburne University of Technology Faculty of Health Arts and Design, Hawthorn, Victoria, AustraliaObjectives To investigate the effect of age-related rotator cuff tears on shoulder strength in a general population cohort.Design Cross sectional observational study.Setting This study was set in an outpatient clinic setting in Chingford, North East London, and was a component of the 20 year visit of the Chingford 1000 women cohort.Participants Individuals were part of the Chingford 1000 women cohort, a 20-year-old longitudinal population study. This cohort has been extensively characterised as representative of the population of the UK. At the 20 year visit, 446 attended for shoulder assessment and were aged between 64 and 87.Primary and secondary outcome measures Isometric shoulder abduction strength measured using a Nottingham Mecmesin Myometer and the presence of rotator cuff pathology, determined via ultrasound examination (GE voluson i portable ultrasound machine with a 10-16MHz linear probe). Shoulders were classified into normal, abnormal tendon/partial tear, full-thickness tears (>0 and ≤2.5 cm) and full-thickness tears (>2.5 cm). Symptoms were defined using the Oxford Shoulder Score, where an abnormal score was defined as symptomatic.Results 446 women (891 shoulders) aged 71 (range 65–84) were included in the study. Age, the presence of pain and the non-dominant arm were demonstrated to reduce strength. Rotator cuff tears and pathology had no isolated effect on shoulder strength in those aged under 70. However, in the over 70s full-thickness tears>0 and ≤2.5 cm, and >2.5 cm had mean reductions of 6.3 and 12.7 N, respectively (p<0.001).Conclusion Rotator cuff tears of all sizes in those aged under 70 were not associated with a loss of shoulder strength. In those aged over 70, strength was reduced by 30% with small and 40% with large full thickness tears. Loss in strength was associated a loss of ability to perform activities of daily living but only for large tears.https://bmjopen.bmj.com/content/13/7/e071908.full |
| spellingShingle | Andrew J Carr Nigel K Arden Hannah Hinsley Charlotte Ganderton Relationship between shoulder abduction strength and rotator cuff tear in elderly women: a general population study BMJ Open |
| title | Relationship between shoulder abduction strength and rotator cuff tear in elderly women: a general population study |
| title_full | Relationship between shoulder abduction strength and rotator cuff tear in elderly women: a general population study |
| title_fullStr | Relationship between shoulder abduction strength and rotator cuff tear in elderly women: a general population study |
| title_full_unstemmed | Relationship between shoulder abduction strength and rotator cuff tear in elderly women: a general population study |
| title_short | Relationship between shoulder abduction strength and rotator cuff tear in elderly women: a general population study |
| title_sort | relationship between shoulder abduction strength and rotator cuff tear in elderly women a general population study |
| url | https://bmjopen.bmj.com/content/13/7/e071908.full |
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