This form is to be used by students who complete the semester but do not plan to return to LHU the next regular academic semester (fall or spring), excluding graduated students, 3+2 programs, or other specially arranged academic programs.
Bone Chips in the Knee (Osteochondritis Dissecans) Osteochondritis dissecans is a knee problem caused by an injury to the bones or cartilage of the knee joint. The cartilage covering the femur (thighbone) or patella (kneecap) is usually affected. (Cartilage is the tissue that lines and cushions the surface of the joints.) Fragments or chips of bone or cartilage may come loose and float around in the knee joint.
In the knee, the knobby portion of the thighbone on the inside of the knee (the medial femoral condyle) is most often affected. However, osteonecrosis of the knee may also occur on the outside of the knee (the lateral femoral condyle) or on the flat top of the lower leg bone (tibial plateau). Top of page. The exact cause of the osteonecrosis of the knee is not yet known.