Congenital knee dislocation (CKD) is a deformity in which unnatural hyperextension is possible at the knee much beyond the normal 0° full extension while the flexion is severely restricted. Incidence of this rare congenital malformation is 1/100,000 live births. We present a clinical case of unilateral CKD in a 2-week-old female child and our approach of treatment using serial casting. We have been able to demonstrate that if initiated early, within first few weeks of life, the congenital deformity of knee can be managed conservatively without any surgical intervention even in higher grades.
Case Rep Orthop Res 2021;4:138–144

中文翻译：

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先天性膝关节脱位的早期非手术治疗成功：案例报告的证明

先天性膝关节脱位 (CKD) 是一种畸形，在这种畸形中，膝关节可能会出现不自然的过度伸展，远远超出正常的 0° 完全伸展，同时屈曲受到严重限制。这种罕见的先天性畸形的发生率为 1/100,000 活产。我们介绍了一个 2 周大的女童单侧 CKD 的临床病例以及我们使用连续铸造的治疗方法。我们已经证明，如果尽早开始，在生命的最初几周内，即使在更高级别的情况下，也可以保守地治疗膝关节的先天性畸形，而无需任何手术干预。
案例代表 Orthop Res 2021；4:138–144