AU - von Keudell, Arvind AU - Gomoll, Andreas H. AU - Bryant, Tim AU - Minas, Tom TI - Spontaneous Osteonecrosis of the Knee Treated with Autologous Chondrocyte Implantation, Autologous Bone-Grafting, and OsteotomyA Report of Two Cases with Follow-up of Seven and Nine Years PT - JOUR DP - 2011 TA - The Journal of Bone & Joint Surgery PG - e149 1-7 VI - 93 IP - 24 AID - 10.2106/JBJS.K.00242 [doi] 4100 - http://dx.doi.org/10.2106/JBJS.K.00242 SO - The Journal of Bone & Joint Surgery December 21, 2011 93(24):e149 1