Related Experiment Video
Updated: Jan 11, 2026
05:44
Author Spotlight: Double Posteromedial Approach for Treating Posterior Cruciate Ligament Cysts
Published on: October 20, 2023
1.3K
Minimum 5-Year Outcomes, Complication Rates, and Conversion to Total Knee Arthroplasty Following Isolated Medial
Jorge Chahla1, Rodrigo Saad Berreta1, Eric J Cotter1
1Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA.
Orthopaedic Journal of Sports Medicine
|November 17, 2025
Summary
Medial meniscus posterior root tear (MMPRT) repair shows promising midterm outcomes. Most patients achieved clinically significant results and maintained arthroplasty-free survival at 5 years.
Area of Science:
- Orthopedic surgery
- Knee biomechanics
- Meniscal repair outcomes
Background:
- Medial meniscus posterior root tears (MMPRT) require repair to prevent osteoarthritis progression in patients with healthy cartilage.
- Limited data exists on midterm outcomes following MMPRT repair.
Purpose of the Study:
- To evaluate patient-reported outcome measures (PROMs), complications, and failure rates after MMPRT repair with a minimum 5-year follow-up.
- To assess the efficacy of transtibial pullout repair for isolated MMPRT.
Main Methods:
- Retrospective query of a prospectively collected database for patients undergoing isolated MMPRT repair (Jan 2016-Mar 2019).
- Exclusion criteria included advanced osteoarthritis, concurrent procedures, all-inside repair, and lateral meniscal tears.
- PROMs assessed: KOOS Jr, IKDC, VR-12. Clinical failure defined by failure to meet minimal clinically important difference (MCID).
Main Results:
- 36 patients (94.7%) followed up at a mean of 65.8 months.
- 5 patients (13.9%) underwent conversion to arthroplasty.
- 86.1% arthroplasty-free survivorship at midterm follow-up.
- 74.2% achieved MCID for KOOS Jr; 51.6% achieved Patient Acceptable Symptom State (PASS).
Conclusions:
- Transtibial pullout repair for isolated MMPRT yields clinically significant outcomes in a majority of patients at 5-year follow-up.
- High midterm arthroplasty-free survivorship supports this technique for MMPRT.
- Further research may explore long-term outcomes and patient selection criteria.
