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Destabilization of the Medial Meniscus and Cartilage Scratch Murine Model of Accelerated Osteoarthritis
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Meniscal Extrusion: A Critical Analysis Review.

Joshua T Kaiser1, Dhanur Damodar1, Matthew J Udine2

  • 1Midwest Orthopaedics at Rush University Medical Center, Chicago, Illinois.

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|August 3, 2022
PubMed
Summary

Pathologic meniscal extrusion, a displacement of the meniscus, can worsen knee osteoarthritis. Diagnosis via MRI or ultrasound guides surgical treatment based on individual patient factors.

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Area of Science:

  • Orthopedics
  • Radiology
  • Sports Medicine

Background:

  • Pathologic meniscal extrusion compromises meniscal function.
  • This can increase tibiofemoral contact forces.
  • It also accelerates osteoarthritis development.

Purpose of the Study:

  • To define meniscal extrusion and its diagnostic methods.
  • To outline surgical management principles for meniscal extrusion.

Main Methods:

  • Meniscal extrusion is defined as radial displacement of ≥3 mm outside the tibial border.
  • Magnetic resonance imaging (MRI) is the gold standard for diagnosis.
  • Ultrasonography shows promising diagnostic utility.

Main Results:

  • Meniscal extrusion negatively impacts knee joint health.
  • Accurate diagnosis is crucial for appropriate management.
  • Surgical intervention is tailored to specific patient criteria.

Conclusions:

  • Meniscal extrusion is a significant factor in tibiofemoral joint pathology.
  • Effective diagnosis and individualized surgical management are key to mitigating osteoarthritis progression.