Radiographic deformities of the lower extremity in patients with spontaneous osteonecrosis of the knee

Spontaneous osteonecrosis of the knee (SONK) is one of the acute knee pain disorders arising in elderly patients. The presence of knee varus alignment and the size of necrotic area have been reported as the negative prognostic factors in prior studies. However, no previous study has yet clarified the radiological analysis of the lower extremity in SONK compared with that in osteoarthritis. The purpose of this study was therefore to identify the radiographic findings of the lower extremity in SONK.

Source: The Knee - April 21, 2020 Category: Orthopaedics Authors: Hiroaki Tsukamoto, Hidetomo Saito, Kimio Saito, Takayuki Yoshikawa, Masashi Oba, Kana Sasaki, Chie Sato, Manabu Akagawa, Yasuhiro Takahashi, Naohisa Miyakoshi, Yoichi Shimada Source Type: research