Hoffa's fat pad syndrome [top]

  • knee pain and locking
  • Pain beneath patella

Medial shelf syndrome [top]

  • Medial knee pain and locking

Meniscal tear [top]

  • Acute knee pain, locking
  • History of forced twisting of flexed knee

Loose bodies in knee joint [top]

  • Recurrent knee pain, locking, giving way
  • Swelling and effusion
  • Causes include osteoarthritis, osteochondritis dessicans, chip fractures

Osteochondritis dessicans [top]

  • Aching knee pain and swelling after activity with locking and giving way
  • Usually affects teenager or young adult
  • Caused by separation of articular cartilage from underlying bone
  • Risk factors: Trauma, Male, Overuse in sports