Orthopaedic Oncology Clinic, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang-si Gyeonggi-do, 10408, South Korea; Division of Convergence Technology, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang-si Gyeonggi-do, 10408, South Korea.
Orthopaedic Oncology Clinic, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang-si Gyeonggi-do, 10408, South Korea; Division of Convergence Technology, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang-si Gyeonggi-do, 10408, South Korea.
J Orthop Sci. 2021 Mar;26(2):276-283. doi: 10.1016/j.jos.2020.03.004. Epub 2020 Apr 1.
Three-dimensional (3D)-printing technology provides an advanced approach to pelvic bone tumor resection and reconstruction. However, only a few cases of pelvic bone tumor surgery using 3D-printing have been reported due to limited time since the introduction of the new implant. This study introduces pelvic bone tumor surgeries using 3D-printed bone-cutting guides and implants.
This single-center retrospective review included 12 patients who underwent malignant pelvic bone tumor surgeries using a 3D-printed bone-cutting guide and/or implant. Clinical information was collected regarding patient demographics, tumor characteristics, pathologic diagnosis, surgery details, and functional recovery.
Type I internal hemipelvectomy was performed using 3D-printed bone-cutting guides for 4 patients that underwent cavitary bone tumor resection of the ilium. For 3 of these 4 patients, cavitary bone defects were filled with structural allobone graft precisely trimmed by the 3D-printed allograft-shaping guide (n = 1) and 3D-printed mesh-style titanium spacer (n = 2). For type II and III areas, one and two patients, respectively, underwent 3D-printing-assisted surgery. Five patients underwent type I, II, and III pelvic resection using 3D-printed cutting guides and reconstruction with 3D-printed implants. In all patients, independent gait was recovered except for a patient who underwent hindquarter amputation 4 months postoperatively because of local recurrence.
This study provides preliminary, short-term data on the efficacy and safety of pelvic bone tumor surgery using 3D-printing.
三维（3D）打印技术为骨盆骨肿瘤切除和重建提供了一种先进的方法。然而，由于新植入物引入时间有限，仅报道了少数几例使用 3D 打印进行的骨盆骨肿瘤手术。本研究介绍了使用 3D 打印截骨导板和植入物进行的骨盆骨肿瘤手术。
这是一项单中心回顾性研究，纳入了 12 例接受 3D 打印截骨导板和/或植入物治疗的恶性骨盆骨肿瘤患者。收集了患者人口统计学、肿瘤特征、病理诊断、手术细节和功能恢复等临床信息。
4 例患者采用 3D 打印截骨导板行 I 型内半骨盆切除术，用于髂骨空洞性骨肿瘤切除。这 4 例患者中有 3 例采用 3D 打印异体骨成形导板（n=1）和 3D 打印网格式钛 spacer（n=2）精确修整的结构性同种异体骨填充空洞性骨缺损。对于 II 型和 III 型区域，分别有 1 例和 2 例患者进行了 3D 打印辅助手术。5 例患者采用 3D 打印截骨导板行 I、II 和 III 型骨盆切除，并采用 3D 打印植入物重建。所有患者均恢复独立行走，除 1 例患者因局部复发于术后 4 个月行后肢截肢外。
本研究初步提供了短期数据，证明了 3D 打印在骨盆骨肿瘤手术中的疗效和安全性。
