@article{doi:10.2106/JBJS.K.00242,
author = {von Keudell, Arvind and Gomoll, Andreas H. and Bryant, Tim and Minas, Tom},
title = {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},
journal = {The Journal of Bone & Joint Surgery},
volume = {93},
number = {24},
pages = {e149 1-7},
year = {2011},
doi = {10.2106/JBJS.K.00242},
URL = { + http://dx.doi.org/10.2106/JBJS.K.00242},
eprint = {}
}