Orthopedics. 2020 Nov 1;43(6):e486-e491. doi: 10.3928/01477447-20200923-05. Epub 2020 Oct 1.
Complex regional pain syndrome (CRPS) is an uncommon cause of residual pain after total knee arthroplasty (TKA). The presentation is variable, and there is no gold standard diagnostic test. Diagnosis is more difficult after TKA because some classic signs of CRPS may be unreliable and imaging may be difficult to interpret. Early intervention is the most important factor in predicting improvement, necessitating high suspicion in patients with exaggerated pain and stiffness after excluding more common causes. This article reviews the literature regarding CRPS following TKA, explains the diagnosis, and discusses treatment. [Orthopedics. 2020;43(6):e486-e491.].
复杂性区域疼痛综合征（CRPS）是全膝关节置换术后（TKA）遗留疼痛的一种罕见原因。其表现形式多种多样，且没有金标准诊断测试。由于 CRPS 的一些典型体征可能不可靠，影像学检查也可能难以解读，因此 TKA 后诊断更为困难。早期干预是预测改善的最重要因素，对于排除更常见原因后疼痛和僵硬明显的患者，需要高度怀疑 CRPS。本文复习了关于 TKA 后发生 CRPS 的文献，解释了其诊断方法，并讨论了治疗方法。[骨科。2020；43（6）：e486-e491.]。
