Minimally Invasive Unicompartmental Knee Arthroplasty for Spontaneous Osteonecrosis of the Knee. - Guo, Wan‐shou; Zhang, Qi‐dong; Liu, Zhao‐hui; Cheng, Li‐ming; Yue, De‐bo; Wang, Wei‐guo; Zhang, Nian‐fei; Li, Zi‐rong (Orthopaedic Surgery, 2015)