Clinical and Radiologic Outcomes of Bioinductive Collagen Implant Augmentation in Sugaya Type III Rotator Cuff...

Area of Science:

• Orthopedic Surgery
• Regenerative Medicine
• Sports Medicine

Background:

• Sugaya type III rotator cuff re-tears involve preserved tendon continuity but reduced thickness, leading to pain and dysfunction.
• Bioinductive collagen implants offer potential for enhanced tendon healing, yet clinical data in this specific patient group is limited.
• Evaluating the efficacy of bioinductive collagen implants in augmenting arthroscopic repair for Sugaya type III re-tears is crucial.

Purpose of the Study:

• To assess the clinical and radiological outcomes of arthroscopic rotator cuff repair augmented with a bioinductive collagen implant.
• To investigate the impact of this augmentation on pain, function, and tendon morphology in patients with Sugaya type III re-tears.

Main Methods:

• A retrospective case series of 15 patients with MRI-confirmed Sugaya type III re-tears.
• Clinical outcomes (VAS, ASES, SANE, WORC scores) were evaluated preoperatively and at 6 and 12 months postoperatively.
• MRI was used to measure supraspinatus tendon thickness, with non-parametric statistical analysis applied.

Main Results:

• Significant improvements were observed in pain scores (VAS) and functional scores (ASES, SANE, WORC) at 12 months post-surgery.
• Supraspinatus tendon thickness increased significantly from 4.8 mm to 6.9 mm at 12 months (adjusted p < 0.001).
• No instances of graft failure were detected on follow-up MRI.

Conclusions:

• Arthroscopic repair combined with bioinductive collagen implant augmentation shows promise for short-term improvements in pain, function, and tendon thickness in Sugaya type III re-tears.
• The study's small sample size and retrospective design necessitate cautious interpretation of findings.
• Further prospective comparative studies are recommended to validate these results and establish the long-term efficacy of this treatment approach.