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Purpose <p>This prospective randomized study compared the clinical outcomes of patients undergoing arthroscopic repair for partial-thickness bursal-side rotator cuff tears (PT-BRCTs) using the double-locking loop stitching technique (DLLST) versus traditional conversion-to-full-thickness repair techniques.</p> Methods <p>The study included 110 patients with PT-BRCTs exceeding 50% of tendon thickness. They were randomly assigned to two groups during surgery. Ninety-four patients completed follow-up (Group I: DLLST, n = 43; Group II: traditional repair, n = 51). Clinical outcomes, including range of motion (ROM), visual analog scale (VAS), American Shoulder and Elbow Surgeons (ASES) score, Constant score, and modified SF-12 quality-of-life scores, were assessed preoperatively, at 3&#xa0;months, and final follow-up. Postoperative MRI evaluated tendon integrity.</p> Results <p>Both groups demonstrated significant improvements in all clinical parameters (P &lt; 0.05). At final follow-up, Group I exhibited superior ASES (91.25 ± 2.88 vs. 89.95 ± 3.24, P = 0.042) and Constant scores (91.19 ± 2.73 vs. 90 ± 2.76, P = 0.040), along with faster pain reduction at 3&#xa0;months (VAS: 2.19 ± 1.33 vs. 2.67 ± 0.99, P = 0.023). No significant differences were observed in SF-12 scores (P &gt; 0.05). MRI confirmed complete tendon healing in all cases.</p> Conclusion <p>Both techniques provided satisfactory functional recovery and pain relief for PT-BRCTs exceeding 50% of tendon thickness. However, DLLST achieved faster functional restoration while preserving tendon integrity, suggesting its potential as a biomechanically advantageous alternative.</p>

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A comparison of the double-locking loop stitching technique and traditional repair techniques for partial-thickness bursal-side rotator cuff tears: randomized controlled trial

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年11月3日

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  • Weipeng Zheng,
  • Qirun Liu,
  • Yuke Song,
  • Zhihao Liao,
  • Zhijun Liu,
  • Sheng Chen,
  • Suming Zheng,
  • Zhiyong Yi,
  • Xudong Huang,
  • Hewei Wei

摘要

Purpose

This prospective randomized study compared the clinical outcomes of patients undergoing arthroscopic repair for partial-thickness bursal-side rotator cuff tears (PT-BRCTs) using the double-locking loop stitching technique (DLLST) versus traditional conversion-to-full-thickness repair techniques.

Methods

The study included 110 patients with PT-BRCTs exceeding 50% of tendon thickness. They were randomly assigned to two groups during surgery. Ninety-four patients completed follow-up (Group I: DLLST, n = 43; Group II: traditional repair, n = 51). Clinical outcomes, including range of motion (ROM), visual analog scale (VAS), American Shoulder and Elbow Surgeons (ASES) score, Constant score, and modified SF-12 quality-of-life scores, were assessed preoperatively, at 3 months, and final follow-up. Postoperative MRI evaluated tendon integrity.

Results

Both groups demonstrated significant improvements in all clinical parameters (P < 0.05). At final follow-up, Group I exhibited superior ASES (91.25 ± 2.88 vs. 89.95 ± 3.24, P = 0.042) and Constant scores (91.19 ± 2.73 vs. 90 ± 2.76, P = 0.040), along with faster pain reduction at 3 months (VAS: 2.19 ± 1.33 vs. 2.67 ± 0.99, P = 0.023). No significant differences were observed in SF-12 scores (P > 0.05). MRI confirmed complete tendon healing in all cases.

Conclusion

Both techniques provided satisfactory functional recovery and pain relief for PT-BRCTs exceeding 50% of tendon thickness. However, DLLST achieved faster functional restoration while preserving tendon integrity, suggesting its potential as a biomechanically advantageous alternative.