Access Keys:
Skip to content (Access Key - 0)

Meniscal Tears

  • medial tear much more common than lateral tear, may be due to difference in excursion (medial ~ 5 mm, lateral ~ 11mm)

Functions of Menisci

  • Mechanical spacers
  • Rotary stability
  • Shock absorbers
  • Distribute synovial fluid
  • Facilitate movement

Mechanism

  • twisting force on knee when it is partially flexed (e.g. stepped down and turning)
  • requires moderate trauma in young person but only mild trauma in elderly due to degeneration

Clinical Features

  • immediate pain, difficulty weightbearing, instability and clicking
  • increased pain with squatting and/or twisting
  • effusion (hemarthrosis) with insidious onset (24-48 hours after injury)
  • joint line tenderness medially or laterally
  • locking of knee (if portion of meniscus mechanically obstructing extension)

Investigations

  • MRI, arthroscopy

Treatment

  • if not locked: ROM and strengthening
  • if locked or failed above: arthroscopic repair/partial meniscectomy
JAAOS Articles

Review articles on Meniscal Tears from JAAOS. [Sign Up and build your orthopaedic network].

Refresh
The license could not be verified: License Certificate has expired!
Orthopaedic Web Links

Internet resources validated by OrthopaedicWebLinks.com

Refresh
The license could not be verified: License Certificate has expired!
Related Content

Resources on Meniscal Tears and related topics in OrthopaedicsOne spaces.