腱板断裂肩における位置覚の検討

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Background: In this study, shoulder joint position sense (SJPS) was studied in relation to tear size, patient's age and compared to the SJPS of the healthy side. Methods: 115 of 182 shoulders that were repaired for cuff tear were studied. They were 75 male and 40 female, average age was 65.6 years. SJPS was assessed by active angle reproduction test. Each setting angle was measured 3 times, absolute value of the difference between the setting angle and the measured angle was studied. 73 uninvolved shoulders without pain and past history of shoulder disease and trauma were compared to involved side. Results: In the relation between involved and uninvolved side, the error angles in the involved side were statistically higher than those of the uninvolved side at all setting angles. Statistical significances were not seen at each setting angle for the tear size. In a comparison of age, the error angle of 30 degrees of elevation in patient's whose age was 70 years or older indicated statistical larger degrees than those of under 70 years. (P=0.02). Statistical significance was not seen for other items. Discussion and conclusion: SJPS of the rotator cuff tear is significantly lower than the opposite healthy side shoulder. The statistical difference of SJPS was not recognized with a difference of the age or a difference of the tear size. Decreased SJPS in the rotator cuff tear, depended on the existence of the rotator cuff tear itself, and it was not affected by the tear size or age.
日本肩関節学会の論文

腱板断裂肩における位置覚の検討

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