Department of Orthopaedics, Southwest Hospital, Third Military Medical University, Chongqing, China; Department of Orthopaedics, General Hospital of Southern Theatre Command of PLA, Guangdong, China; Department of Orthopaedics, The First School of Clinical Medicine, Southern Medical University, Guangdong, China.
Department of Orthopaedics, General Hospital of Southern Theatre Command of PLA, Guangdong, China; Department of Orthopaedics, The First School of Clinical Medicine, Southern Medical University, Guangdong, China.
World Neurosurg. 2021 May;149:e969-e981. doi: 10.1016/j.wneu.2021.01.063. Epub 2021 Jan 27.
This study aimed to explore the clinical application of three-dimensional (3D) printing technology in the surgical treatment of congenital scoliosis caused by hemivertebrae.
Twenty-four patients (11 in the 3D-printing group and 13 in the conventional group) with scoliosis secondary to a single hemivertebra were retrospectively reviewed. All patients underwent hemivertebrectomy and short-segment fixation. Virtual preoperative planning, operation simulation, and intraoperative application of 3D-printed patient-specific templates were performed in the 3D-printing group. Hemorrhage volume, operation time, transfusion, and complications were noted. Radiographic parameters were evaluated preoperatively, postoperatively, and at final follow-up.
All patients had different degrees of successfully corrected scoliosis. There was a similar correction of the Cobb angle postoperatively between the 2 groups. The operation time, blood loss, transfusion, time for the insertion of each screw, accuracy of screw placement, and complication rate in the 3D-printing group were significantly superior to those in the control group. No patient experienced major complications. No significant correction loss or instrument dysfunction was observed during follow-up.
As a viable and effective auxiliary technology, 3D printing makes it possible for surgery to meet both surgeon-specific and patient-specific requirements. 3D-printed individualized templates allow surgery for the correction of congenital scoliosis to enter a new stage of personalized precision surgery.
本研究旨在探讨三维（3D）打印技术在单半椎体所致先天性脊柱侧凸手术治疗中的临床应用。
回顾性分析 24 例单半椎体所致脊柱侧凸患者（3D 打印组 11 例，常规组 13 例）的临床资料。所有患者均行半椎体切除术和短节段固定。3D 打印组采用 3D 打印患者特异性模板进行虚拟术前规划、手术模拟和术中应用。记录出血量、手术时间、输血及并发症。术前、术后及末次随访时评估影像学参数。
所有患者的脊柱侧凸均得到不同程度的成功矫正。两组术后 Cobb 角矫正程度相似。3D 打印组手术时间、出血量、输血、置钉时间、置钉准确性和并发症发生率均明显优于对照组。两组均无患者发生重大并发症。随访期间无明显矫正丢失或器械功能障碍。
3D 打印作为一种可行有效的辅助技术，使手术既能满足术者的要求，又能满足患者的要求。3D 打印个体化模板使先天性脊柱侧凸的矫形手术进入个性化精准手术的新阶段。
