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  • Femoral fractures (broken thighbone)
  • Tibial fractures (broken shinbone)
  • Growth plate fractures
  • Stress fractures

Tears and instability

  • Anterior cruciate ligament injuries
  • Collateral ligament injuries
  • Combined knee ligament injuries
  • Meniscal tear
  • Patellar tendon tear
  • Posterior cruciate ligament (PCL) tear
  • Quadriceps tendon tear
  • Unstable kneecap

Pain syndromes

Diseases and syndromes

  • Bowed legs
  • Kneecap (prepatellar) bursitis
  • Osteonecrosis of the knee

Find out more about the Knee from the Orthopaedics connection website of American Academy of Orthopaedic Surgeons.