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KMID : 0858320080110020096
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Journal of the Korean Shoulder Elbow Society
2008 Volume.11 No. 2 p.96 ~ p.103
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MRI Follow-up Study After Arthroscopic Repair of Multiple Rotator Cuff Tendons
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Tae Suk-Kee
Kim Jin-Young
Park Jae-Sik
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Abstract
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Purpose: This study investigated the rate of retear and related factors after arthroscopic repair of rotator cuff tears involving more than one tendon.
Materials & Methods: Arthroscopic repair of 22 rotator cuff tears (average size 3.2cm: average age 58 years old) involving the supraspinatus and part or all of the infraspinatus were investigated using MRI on average 10 months after repair. The status of the repaired cuff was investigated using Sugaya’s classification, and the change in muscle was evaluated with Goutallier’s classification.
Results: Retear (Sugaya grade IV, V) was found in 7cases(32%). Tears larger than 3cm had a higher retear rate(67%) than smaller tears(8%). Retear cases had Goutallier grade II or higher muscle changes preoperatively and showed aggravation of muscle atrophy postoperatively. Even without retear, reversal of muscle change was not seen.
Conclusion: Rotator cuff tears not confined to the supraspinatus had a 32% retear rate after arthroscopic repair. The size of the tear was the most crucial factor influencing retear. Retear was frequent in tear over 3cm. Atrophy of the cuff muscle worsened when the repair failed but did not improve even without retear.
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KEYWORD
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Rotator Cuff, Arthroscopic Repair, MRI
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