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Related Experiment Video

Updated: Jan 10, 2026

Destabilization of the Medial Meniscus and Cartilage Scratch Murine Model of Accelerated Osteoarthritis
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Meniscus Centralization in Medial Meniscus Posterior Root Repair.

Sercan Yalcin1, Christian Lattermann1, Elizabeth G Matzkin1

  • 1Mass General-Brigham, Department of Orthopaedics, Harvard Medical School, Boston, Massachusetts, USA.

Video Journal of Sports Medicine
|November 21, 2025
PubMed
Summary
This summary is machine-generated.

Meniscal root repair with centralization significantly reduces medial meniscus extrusion, preventing further cartilage damage and knee osteoarthritis progression. This technique shows promising outcomes without requiring total knee arthroplasty in early follow-up.

Keywords:
medial meniscus posterior rootmeniscus centralizationmeniscus extrusionosteoarthritisroot repair

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Area of Science:

  • Orthopedic Surgery
  • Sports Medicine
  • Biomechanical Engineering

Background:

  • Meniscal root tears, affecting 60-70 per 100,000 people, are increasingly recognized.
  • Meniscal extrusion (>3 mm) associated with root tears contributes to degenerative cartilage damage and increased tibiofemoral stress.

Purpose of the Study:

  • To evaluate the efficacy of medial meniscus centralization during posterior root repair.
  • To assess the impact on meniscal extrusion and knee osteoarthritis progression.

Main Methods:

  • Medial meniscus posterior root repair using a pullout technique.
  • Meniscus body centralization with a knotless anchor and additional all-inside sutures for stability.

Main Results:

  • Significant reduction in meniscal extrusion observed at 2- and 3-year follow-up.
  • No cases of conversion to total knee arthroplasty were reported.

Conclusions:

  • Medial meniscus centralization effectively restores meniscus anatomy and function.
  • This technique helps prevent osteoarthritis progression by improving tibiofemoral contact surfaces.