Geijer Mats, Jureus Jan, Hanni Mari, Shalabi Adel
Department of Radiology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden; Department of Clinical Sciences, Lund University, Lund, Sweden.
Department of Orthopedic Surgery, Skåne University Hospital and Lund University, Lund, Sweden.
Acta Radiol Open. 2017 Jan 1;6(2):2058460116688719. doi: 10.1177/2058460116688719. eCollection 2017 Feb.
Spontaneous osteonecrosis of the knee (SONK) is a feared condition of unknown cause, in its classic form appearing in the medial femoral condyle in middle-aged or elderly subjects. Diagnosis with radiography is notoriously difficult with a long latency before typical changes appear. Magnetic resonance imaging (MRI) is regarded as a diagnostic tool with the possibility to give an earlier diagnosis with improved chances for treatment. However, also with MRI there may be an initial diagnostic blind spot before typical changes appear. Little is known about the temporal evolution of the MRI changes. In the current case report, a case of SONK is reported where serial imaging with MRI was performed, from initial symptoms to eventual resolution after almost three years.
膝关节自发性骨坏死（SONK）是一种病因不明的可怕病症，其典型形式出现在中年或老年患者的股骨内侧髁。通过X线摄影进行诊断非常困难，典型变化出现前有很长的潜伏期。磁共振成像（MRI）被视为一种诊断工具，有可能更早诊断并提高治疗成功率。然而，即使使用MRI，在典型变化出现之前也可能存在初始诊断盲点。关于MRI变化的时间演变知之甚少。在本病例报告中，报道了一例SONK病例，从最初症状到近三年后最终痊愈，期间进行了一系列MRI成像。
