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Evaluation of risk factors for irreparable rotator cuff tear in patients older than age 70 including evaluation of radiologic factors of the shoulder.
Journal of Shoulder and Elbow Surgery 2018 November
BACKGROUND: Rotator cuff tears (RCTs) are generally considered to occur at the age of 40 to 50, but some becomes massive tears at the age of 60 to 70 if neglected. This study evaluated preoperative factors affecting tear size and reparability of rotator cuffs based on magnetic resonance imaging findings among patients older than age 70.
METHODS: We identified 270 patients with full-thickness RCTs (175 reparable tears, group A; 95 irreparable tears, group B) that were confirmed with magnetic resonance imaging findings from January 2009 to March 2016. Irreparable tear was identified if all of the following criteria were met: (1) a large to massive RCT based on the DeOrio and Cofield classification, (2) sum of preoperative global fatty degeneration index of the supraspinatus and infraspinatus ≥6, and (3) positive tangent sign. Preoperative variables included demographic data, medical history, and radiologic data. Acromial index, critical shoulder angle, and acromiohumeral interval (AHI) were evaluated to investigate the relationship between anatomic factors and reparability of RCT.
RESULTS: Stepwise multivariated regression analysis revealed older age, longer symptom duration, longer duration of overhead sports activity, lower preoperative forward elevation of the shoulder joint, and shorter AHI as risk factors for irreparable RCTs.
CONCLUSIONS: This study suggests that older age at surgery, longer duration of symptoms, longer duration of overhead sports activity, lower preoperative forward elevation of the shoulder joint, and shorter AHI are independent risk factors for irreparable RCT.
METHODS: We identified 270 patients with full-thickness RCTs (175 reparable tears, group A; 95 irreparable tears, group B) that were confirmed with magnetic resonance imaging findings from January 2009 to March 2016. Irreparable tear was identified if all of the following criteria were met: (1) a large to massive RCT based on the DeOrio and Cofield classification, (2) sum of preoperative global fatty degeneration index of the supraspinatus and infraspinatus ≥6, and (3) positive tangent sign. Preoperative variables included demographic data, medical history, and radiologic data. Acromial index, critical shoulder angle, and acromiohumeral interval (AHI) were evaluated to investigate the relationship between anatomic factors and reparability of RCT.
RESULTS: Stepwise multivariated regression analysis revealed older age, longer symptom duration, longer duration of overhead sports activity, lower preoperative forward elevation of the shoulder joint, and shorter AHI as risk factors for irreparable RCTs.
CONCLUSIONS: This study suggests that older age at surgery, longer duration of symptoms, longer duration of overhead sports activity, lower preoperative forward elevation of the shoulder joint, and shorter AHI are independent risk factors for irreparable RCT.
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