日直視下腱板断裂術後の経時的なMRI評価<BR>－術後1年以内と1年以降における修復腱の比較検討－

DOI
  • 大灘 嘉浩
    斗南病院スポーツ医療センター　整形外科
  • 福田 公孝
    斗南病院スポーツ医療センター　整形外科
  • 大泉 尚美
    整形外科北新病院　上肢人工関節 • 内視鏡センター
  • 杉本 寿司
    斗南病院スポーツ医療センター　理学療法科

書誌事項

タイトル別名
  • Postoperative Changes of MRI Findings<BR>after Open Rotator Cuff Repair within 1 Year and Over 1 Year

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抄録

The purpose of this study is to investigate postoperative changes of MRI findings after the open rotator cuff repair within 1 year and over 1 year. 76 shoulders, which received the open repair by a trans-osseous method and acromioplasty, were evaluated with MRI postoperatively within 1 year and over 1 year. 37 males and 35 females were involved. The average age at the time of operation was 65.1 years old. The average follow-up period was 31.7 months. The clinical outcome was evaluated by JOA score. MRI was performed on a 0.5-T system and T2-weighted images were obtained. Intensity of the tendon or the bone-tendon interface is defined as 'high' when it is as high as joint fluid, as 'low' when it was the same as the normal tendon, and as 'medium' when it was between 'high' and 'low'. At final follow-up, of 19 shoulders which showed low intensity within 1 year, 18 shoulders (94.7%) showed low intensity continuously. Of 30 shoulders which showed medium intensity within 1 year, 24 (80.0%) changed to low intensity at an average of 18.8 months after repair. Of 27 shoulders which showed high intensity within 1 year, 5 shoulders (18.5%) changed to low intensity at an average of 34.6 months after repair. The average postoperative JOA score of low intensity was 93.4 at final follow-up, and it was significantly higher than that of high intensity (81.1). Therefore, it is suggested that medium intensity of the repaired tendon has a hope of meaning a biological-repair at high rate within 2 years, and high intensity within 3 years after the operation does not always mean a re-rupture.

収録刊行物

  • 肩関節

    肩関節 35 (2), 485-488, 2011

    日本肩関節学会

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