COVID-19 is an emergent infection, the long-term complications of which are still under study. While hypercoagulability is a common feature in severe cases, the incidence of ischemic complications such as osteonecrosis remains unknown. Previous studies on SARS-CoV1 found an increase in osteonecrosis 3–36 months after infection, and it is still unclear if this was related to the use of corticosteroids or to the virus itself.

中文翻译：

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COVID-19 后膝关节骨坏死

COVID-19 是一种紧急感染，其长期并发症仍在研究中。虽然高凝状态是严重病例的常见特征，但缺血性并发症（如骨坏死）的发生率仍然未知。先前对 SARS-CoV1 的研究发现感染后 3-36 个月骨坏死增加，目前尚不清楚这是否与使用皮质类固醇或病毒本身有关。