How do you deal with osteonecrosis of the knee?

Osteonecrosis: Also called avascular necrosis or avn, this can cause pain and deformity of the joint--caused by decreased blood supply that leads to bone death. If minimal stick with conservative treatments. If significant, may need partial or total knee replacement.

Depends on severity: Depending on the severity treatment options may include rest, ice, compression and elevation, bracing, injection, pain medication, anti-inflammatory medication, physical therapy, and possible arthroscopic or open surgery including possible joint replacement.