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Related Concept Videos

Knee Joint01:23

Knee Joint

The knee joint is the most complicated joint in the body. It consists of three articulations– two tibiofemoral and one patellofemoral. As is characteristic of synovial joints, the knee joint has a thin articular capsule that partially surrounds this joint cavity. Additionally, several ligaments, muscles, and cartilaginous structures support the movement of the knee.
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris group...

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Related Experiment Video

Updated: May 29, 2026

Destabilization of the Medial Meniscus and Cartilage Scratch Murine Model of Accelerated Osteoarthritis
07:06

Destabilization of the Medial Meniscus and Cartilage Scratch Murine Model of Accelerated Osteoarthritis

Published on: July 6, 2022

[Saving the meniscus].

D Fritschy1

  • 1Service de chirurgie orthopédique ambulatoire, Département de chirurgie, HUG, 1211 Genève 14. daniel.fritschy@hcuge.ch

Revue Medicale Suisse
|September 17, 2011
PubMed
Summary
This summary is machine-generated.

Meniscal tears in the knee have varying healing potential based on location. Peripheral tears can heal and should be repaired, while inner tears often require resection.

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Last Updated: May 29, 2026

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Area of Science:

  • Orthopedic Surgery
  • Sports Medicine
  • Knee Anatomy

Background:

  • Meniscal tears are common knee injuries resulting from various accidents.
  • The knee meniscus has distinct zones with differing vascularization and healing capacities.
  • Degenerative meniscal lesions are highly prevalent in individuals over 65 years of age.

Purpose of the Study:

  • To analyze the relationship between meniscal tear location and healing prognosis.
  • To guide surgical indications for different types of meniscal lesions.
  • To evaluate the impact of age on meniscal health and treatment decisions.

Main Methods:

  • Review of meniscal tear classifications based on anatomical zones (red, white, intermediate).
  • Correlation of tear location with observed healing potential and treatment outcomes.
  • Analysis of epidemiological data regarding meniscal lesions in older populations.

Main Results:

  • Tears in the peripheral vascularized red zone exhibit significant healing capacity and benefit from repair.
  • Intermediate zone tears may heal with sutures, while inner white zone tears typically require resection.
  • Two-thirds of knees in individuals over 65 show meniscal lesions, necessitating careful surgical consideration.

Conclusions:

  • Meniscal tear treatment should be tailored to the specific anatomical location and vascularity.
  • Surgical intervention for degenerative meniscal lesions, especially in older adults, requires cautious evaluation.
  • Over-reliance on imaging without considering tear characteristics can lead to detrimental surgical outcomes.