ST/G ACL reconstruction: double strand plus extra-articular sling vs double bundle, randomized study at 3-year...

Area of Science:

• Orthopedic surgery
• Sports medicine
• Biomedical engineering

Background:

• Anterior cruciate ligament (ACL) injuries are common.
• Differences exist between ACL bundles (anteromedial and posterolateral).
• ACL reconstruction aims to restore knee function.

Purpose of the Study:

• Compare clinical, instrumental, and radiographic outcomes of two ACL reconstruction techniques.
• Evaluate single-bundle with extra-articular sling versus double-bundle hamstring tendon ACL reconstruction.
• Assess functional recovery and knee stability at a minimum 3-year follow-up.

Main Methods:

• Prospective randomized study of 72 patients undergoing ACL reconstruction.
• Groups: 35 single-bundle plus lateral plasty, 37 double-bundle.
• Evaluated using IKDC, Tegner score, KT2000 arthrometer, Activity Rating Scale, Psychovitality Questionnaire, and Ahlback radiographic score.

Main Results:

• Double-bundle group showed significantly better IKDC scores, range of motion (ROM), Activity Rating Scale, and return to sport time.
• KT2000 arthrometer revealed significant differences in objective knee stability.
• The double-bundle technique demonstrated superior subjective, objective, and functional results.

Conclusions:

• The double-bundle ACL reconstruction technique provides superior outcomes compared to single-bundle with extra-articular sling.
• Anatomic double-bundle reconstruction better reproduces native ACL function.
• This technique leads to improved patient function and knee stability post-surgery.