Does magnetic resonance imaging appearance of supraspinatus muscle atrophy change after repairing rotator cuff tears?
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- 作者：Sang-Hoon Lhee ; MD ; PhD ; sanghoon.lhee@gmail.com ; Anant Kumar Singh ; MS ; anantsingh37@gmail.com ; Do Young Lee ; MD
- 关键词：Level II ; Retrospective Design ; Prognosis Study
- 刊名：Journal of Shoulder and Elbow Surgery
- 出版年：2017
- 出版时间：March 2017
- 年：2017
- 卷：26
- 期：3
- 页码：416-423
- 全文大小：1462 K
- 卷排序：26
文摘
This study was conducted to determine whether supraspinatus muscle atrophy appearance changes after arthroscopic rotator cuff repair and to quantify the change in appearance on magnetic resonance imaging (MRI), if any, based on age and tendon retraction.MethodsWe retrospectively reviewed patients who underwent arthroscopic rotator cuff repair and considered only 209 patients who had both preoperative and immediate postoperative MRI. Patients were grouped by age <60 years and >60 years. They were further subdivided into stage 1 (mild), stage 2 (moderate), and stage 3 (severe), depending on preoperative supraspinatus tendon retraction on the coronal view of MRI according to Patte classification. The postoperative occupancy ratio was compared with the preoperative occupancy ratio within the subgroups, and change in the occupancy ratio was used for comparison between the subgroups.ResultsThere was a significant increase in the occupancy ratio in the mild (P =.001) and moderate-severe (P =.003) subgroup from their preoperative values. In the mild subgroup, the occupancy ratio was significantly greater in the group aged <60 years compared with the group aged >60 years (P =.010). But in the moderate subgroup there was no significant difference between the 2 age groups (P =.710).ConclusionsA significant change in supraspinatus muscle atrophy occurs in every patient, provided the patient has some tendon retraction preoperatively. The amount of change in supraspinatus muscle atrophy after surgery depends on the age to some extent, but tendon retraction is the most important thing that decides how much change in atrophy can occur postoperatively.