Modified Transtibial Pullout Repair for Medial Meniscus Posterior Root Tear Using a Barbed Suture: A Technical Note

Area of Science:

• Orthopedic Surgery
• Biomedical Engineering
• Sports Medicine

Background:

• Medial meniscus posterior root tears disrupt knee biomechanics.
• Traditional repair methods may have limitations in fixation strength and load distribution.
• Restoring meniscal integrity is crucial for preventing osteoarthritis.

Purpose of the Study:

• To describe a modified transtibial pullout repair technique for medial meniscus posterior root tears.
• To enhance fixation strength and load distribution using a barbed suture.
• To promote physiologic hoop stress transmission and minimize stress concentration.

Main Methods:

• A modified transtibial pullout repair incorporating a barbed suture.
• Placement of simple sutures near the torn root and a circumferential barbed suture through meniscocapsular tissue.
• Knotless, self-locking fixation with sutures retrieved through a single tibial tunnel and secured with knotless anchors.

Main Results:

• The barbed suture provides enhanced fixation strength and load distribution.
• The technique promotes meniscal centralization and reduces extrusion.
• The method is simple, reproducible, and compatible with standard arthroscopic instruments.

Conclusions:

• This modified technique offers improved fixation and biomechanical properties for medial meniscus posterior root tears.
• The knotless, self-locking barbed suture enhances repair integrity and promotes healing.
• The technique is versatile and adaptable for various meniscal root tear patterns.