Department of Orthopedics, Chongqing Traditional Chinese Medicine Hospital, Chongqing, Republic of China; Department of Orthopedics, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, Republic of China.
Department of Urinary Surgery, The Second Affiliated Hospital of the Army Medical University, Chongqing, Republic of China.
J Arthroplasty. 2019 Feb;34(2):338-345.e1. doi: 10.1016/j.arth.2018.10.001. Epub 2018 Oct 11.
Common three-dimensional (3D)-printed anatomic templates have generally been used to reconstruct the pelvis after zone II and III borderline pelvic tumor resection. However, gradual increases in postoperative implant complications and the tumor recurrence rate have been observed. This study aimed to introduce the innovative application of a modified 3D-printed anatomic template with a customized cutting block for pelvic reconstruction and to comparatively analyze the common and modified 3D-printed anatomic templates.
A total of 38 patients were included in this study and were allocated to 2 groups (19 patients/group). Group A received innovative therapy, and Group B received traditional therapy. All patients were questioned in detail about age, location, and duration of the mass and associated symptoms, and routine blood tests, such as serological tests, were administered.
We found that the modified 3D-printed anatomic template with a customized cutting block resulted in a shorter operating time, smaller bleeding loss, and simpler operation than the common 3D-printed anatomic template. Additionally, the tumor recurrence rate was lower and the accuracy of tumor resection was much greater for the modified 3D-printed anatomic template with a customized cutting block. However, compared with the traditional therapy, the innovative therapy had a significantly higher rate of implant loosening.
The innovative therapy can increase surgical safety and reduce recurrence after tumor resection relative to the traditional therapy. Additionally, the innovative therapy reconstructs the pelvis of zone III to improve the quality of patient life. However, the innovative therapy with implant loosening should be improved.
常见的三维（3D）打印解剖模板通常用于重建 II 区和 III 区交界性骨盆肿瘤切除后的骨盆。然而，术后植入物并发症和肿瘤复发率逐渐增加。本研究旨在介绍一种改良的 3D 打印解剖模板与定制切割块在骨盆重建中的创新应用，并对常见和改良的 3D 打印解剖模板进行比较分析。
本研究共纳入 38 例患者，分为 2 组（每组 19 例）。A 组接受创新治疗，B 组接受传统治疗。所有患者均详细询问年龄、肿块位置、肿块持续时间和相关症状，并进行常规血液检查，如血清学检查。
我们发现，与常见的 3D 打印解剖模板相比，带定制切割块的改良 3D 打印解剖模板可缩短手术时间、减少出血量、简化手术操作。此外，带定制切割块的改良 3D 打印解剖模板的肿瘤复发率更低，肿瘤切除的准确性更高。然而，与传统治疗相比，创新治疗的植入物松动率明显更高。
与传统治疗相比，创新治疗可提高手术安全性，降低肿瘤切除后的复发率。此外，创新治疗可重建 III 区骨盆，提高患者生活质量。然而，带植入物松动的创新治疗需要改进。
