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The Modified Single-working Portal Technique Using Lasso-loop Stitch with Needle for Arthroscopic Subscapularis Repair
Published on: August 8, 2025
354
Navigation-assisted suture anchor insertion for arthroscopic rotator cuff repair
Ivan Micic1, Erica Kholinne2,3, Hanpyo Hong2
1Clinic for Orthopaedic Surgery and Traumatology, Clinical Center Nis, Nis, Serbia.
BMC Musculoskeletal Disorders
|December 31, 2019
Summary
Navigation-assisted suture anchoring significantly improves accuracy and reproducibility for subscapularis tendon repair compared to conventional arthroscopic methods. This technique enhances anatomical awareness and precise anchor placement during shoulder surgery.
Area of Science:
- Orthopedic Surgery
- Surgical Navigation
- Shoulder Arthroscopy
Background:
- Subscapularis repair using suture anchors presents challenges due to distorted arthroscopic views.
- Accurate placement and angle are difficult to achieve relative to the tendon's natural direction.
Purpose of the Study:
- To compare the reliability and reproducibility of navigation-assisted suture anchoring versus conventional arthroscopic techniques.
- To evaluate the precision of anchor placement in the subscapularis footprint.
Main Methods:
- Five surgeons performed conventional and navigation-assisted suture anchoring on arthroscopic shoulder models seven times each.
- Angular and translational errors were measured and compared using statistical analysis.
- Interobserver reliability was assessed using intraclass correlation coefficients (ICCs).
Main Results:
- Navigation-assisted anchoring reduced mean angular error from 17° to 2° (p < 0.05) and translational error from 15 mm to 3 mm (p < 0.05).
- The navigation system demonstrated significantly higher interobserver reliability for both angular (ICC 0.897 vs. 0.586) and translational errors (ICC 0.938 vs. 0.619).
Conclusions:
- Navigation-assisted techniques enhance surgeon awareness of anatomy and location.
- This system provides superior guidance for optimal anchor orientation and placement in subscapularis footprint repairs.
