A Case of Bilateral Spontaneous Osteonecrosis of The Knee

The etiology of spontaneous osteonecrosis of the knee is still unknown. Severa authors have reported that medial meniscal tears are related to osteonecrosis. We report a case in which osteonecrosis occurred after sustaining a medial meniscal tear. A factor in the etiology of this disease is the stress concentration over the edge of the meniscal fragment.