PDF(Pubmed)
Abstract：
UNASSIGNED: To compare and analyze the Ortho-Bridge System (OBS) clinical efficacy assisted by 3D printing and proximal femoral nail anti-rotation (PFNA) of AO/OTA type 31-A3 femoral intertrochanteric fractures in elderly patients.
UNASSIGNED: A retrospective analysis of 25 elderly patients diagnosed with AO/OTA type 31-A3 femoral intertrochanteric fracture was conducted from January 2020 to August 2022 at Yan\'an Hospital, affiliated to Kunming Medical University. The patients were divided into 10 patients in the OBS group and 15 in the PFNA group according to different surgical methods. The OBS group reconstructed the bone models and designed the guide plate by computer before the operation, imported the data of the guide plate and bone models into a stereolithography apparatus (SLA) 3D printer, and printed them using photosensitive resin, thus obtaining the physical object, then simulating the operation and finally applying the guide plate to assist OBS to complete the operation; the PFNA group was treated by proximal femoral nail anti-rotation. The operation time, the intraoperative blood loss, Harris hip score (HHS), Oxford Hip Score (OHS), and complications were compared between the two groups.
UNASSIGNED: The operation time and the intraoperative blood loss in the PFNA group were less than that in the OBS group, and there was a significant difference between the two groups (P < 0.05). The HHS during the 6th month using OBS was statistically higher than PFNA (P < 0.05), however, there were no significant differences in OHS during the 6th month between the OBS group and PFNA group (P > 0.05). The HHS and OHS during the 12th month in the OBS group were statistically better than in the PFNA group (P < 0.05).
UNASSIGNED: The OBS assisted by 3D printing and PFNA are effective measures for treating intertrochanteric fractures. Prior to making any decisions regarding internal fixation, it is crucial to evaluate the distinct circumstances of each patient thoroughly.
UNASSIGNED: A retrospective analysis of 25 elderly patients diagnosed with AO/OTA type 31-A3 femoral intertrochanteric fracture was conducted from January 2020 to August 2022 at Yan\'an Hospital, affiliated to Kunming Medical University. The patients were divided into 10 patients in the OBS group and 15 in the PFNA group according to different surgical methods. The OBS group reconstructed the bone models and designed the guide plate by computer before the operation, imported the data of the guide plate and bone models into a stereolithography apparatus (SLA) 3D printer, and printed them using photosensitive resin, thus obtaining the physical object, then simulating the operation and finally applying the guide plate to assist OBS to complete the operation; the PFNA group was treated by proximal femoral nail anti-rotation. The operation time, the intraoperative blood loss, Harris hip score (HHS), Oxford Hip Score (OHS), and complications were compared between the two groups.
UNASSIGNED: The operation time and the intraoperative blood loss in the PFNA group were less than that in the OBS group, and there was a significant difference between the two groups (P < 0.05). The HHS during the 6th month using OBS was statistically higher than PFNA (P < 0.05), however, there were no significant differences in OHS during the 6th month between the OBS group and PFNA group (P > 0.05). The HHS and OHS during the 12th month in the OBS group were statistically better than in the PFNA group (P < 0.05).
UNASSIGNED: The OBS assisted by 3D printing and PFNA are effective measures for treating intertrochanteric fractures. Prior to making any decisions regarding internal fixation, it is crucial to evaluate the distinct circumstances of each patient thoroughly.
摘要：
■对比分析3D打印与股骨近端防旋髓内钉（PFNA）辅助下骨桥系统（OBS）治疗AO/OTA31-A3型老年股骨粗隆间骨折的临床疗效。
2020年1月至2022年8月在延安医院对25例诊断为AO/OTA型31-A3型股骨粗隆间骨折的老年患者进行回顾性分析，隶属于昆明医科大学。根据手术方式不同将患者分为OBS组10例和PFNA组15例。OBS组术前重建骨模型并通过计算机设计导板,将引导板和骨骼模型的数据导入到立体光刻设备（SLA）3D打印机中，用光敏树脂印刷，从而获得物理对象，然后模拟手术，最后应用导板辅助OBS完成手术；PFNA组采用股骨近端防旋髓内钉治疗。操作时间,术中失血,哈里斯髋关节评分（HHS），牛津髋关节评分（OHS），比较两组并发症发生情况。
■PFNA组的手术时间和术中出血量少于OBS组，两组比较差异有统计学意义(P<0.05)。使用OBS的第6个月HHS高于PFNA（P<0.05），然而,OBS组与PFNA组6个月OHS比较差异无统计学意义(P>0.05)。OBS组术后12个月的HHS和OHS均优于PFNA组(P<0.05)。
■3D打印和PFNA辅助的OBS是治疗股骨粗隆间骨折的有效措施。在做出关于内固定的任何决定之前，彻底评估每个患者的不同情况是至关重要的。
2020年1月至2022年8月在延安医院对25例诊断为AO/OTA型31-A3型股骨粗隆间骨折的老年患者进行回顾性分析，隶属于昆明医科大学。根据手术方式不同将患者分为OBS组10例和PFNA组15例。OBS组术前重建骨模型并通过计算机设计导板,将引导板和骨骼模型的数据导入到立体光刻设备（SLA）3D打印机中，用光敏树脂印刷，从而获得物理对象，然后模拟手术，最后应用导板辅助OBS完成手术；PFNA组采用股骨近端防旋髓内钉治疗。操作时间,术中失血,哈里斯髋关节评分（HHS），牛津髋关节评分（OHS），比较两组并发症发生情况。
■PFNA组的手术时间和术中出血量少于OBS组，两组比较差异有统计学意义(P<0.05)。使用OBS的第6个月HHS高于PFNA（P<0.05），然而,OBS组与PFNA组6个月OHS比较差异无统计学意义(P>0.05)。OBS组术后12个月的HHS和OHS均优于PFNA组(P<0.05)。
■3D打印和PFNA辅助的OBS是治疗股骨粗隆间骨折的有效措施。在做出关于内固定的任何决定之前，彻底评估每个患者的不同情况是至关重要的。
