Joint-sparing resection of periarticular bone tumors can be challenging because of complex geometry. Successful reconstruction of periarticular bone defects after tumor resection is often performed with structural allografts to allow for joint preservation. However, achieving a size-matched allograft to fill the defect can be challenging because allograft sizes vary, they do not always match a patient's anatomy, and cutting the allograft to perfectly fit the defect is demanding.

中文翻译：

---

徒手、患者专用器械或手术导航对于肿瘤切除后的同种异体移植重建效果更好吗？临床前合成骨研究。


由于复杂的几何形状，关节周围骨肿瘤的保留关节切除可能具有挑战性。肿瘤切除后关节周围骨缺损的成功重建通常采用同种异体结构移植，以保留关节。然而，实现尺寸匹配的同种异体移植物来填充缺损可能具有挑战性，因为同种异体移植物尺寸各不相同，它们并不总是与患者的解剖结构相匹配，并且切割同种异体移植物以完美贴合缺损的要求很高。