A Modified Triangular Arthroscopic Suture-Based Fixation for Tibial Eminence Fractures: Technique, Outcome and...

Area of Science:

• Orthopedic Surgery
• Sports Medicine
• Arthroscopy

Background:

• Tibial eminence fractures are common knee injuries, with high-grade types often requiring surgical intervention.
• Current treatments for Type II and Type III tibial eminence fractures vary, necessitating evaluation of novel techniques.

Purpose of the Study:

• To describe and evaluate a modified arthroscopic pull-through triangle suture fixation technique for Type II and Type III tibial eminence avulsion fractures.
• To assess the efficacy and complication rates of this modified technique compared to existing literature.

Main Methods:

• Prospective data collection and retrospective analysis of 23 adult patients undergoing arthroscopic treatment for displaced tibial eminence fractures (Type II and III).
• Minimum two-year follow-up including clinical evaluation, International Knee Documentation Committee (IKDC) questionnaire, and Tegner Activity Score.
• Post-hoc power calculation based on Tegner Activity Score compared to literature.

Main Results:

• The modified technique showed favorable outcomes with a mean postoperative Tegner Activity Score of 8.2 ± 1.7.
• Fifteen patients achieved IKDC A (normal) and six IKDC B (nearly normal) ratings.
• Excellent range of motion was observed, with 24 patients achieving normal flexion and a mean flexion of 123 ± 16°.

Conclusions:

• The modified arthroscopic suture fixation technique is a safe and efficient method for treating tibial eminence fractures.
• The procedure is technically straightforward, requires basic arthroscopic equipment, and facilitates early rehabilitation.
• This technique demonstrates a lower complication rate compared to other fixation methods for tibial eminence fractures.