Wang Shanshan, Wang Li, Liu Yan, Ren Yongfang, Jiang Li, Li Yan, Zhou Hao, Chen Jie, Jia Wenxiao, Li Hui
Department of Radiology, The Second Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830000, P.R. China.
Department of Radiology, People's Hospital, Xinjiang Autonomous Region, Urumqi, Xinjiang 830001, P.R. China.
Exp Ther Med. 2017 Sep;14(3):2595-2599. doi: 10.3892/etm.2017.4799. Epub 2017 Jul 18.
This study was designed to assess the use of a 3D printing technique in total hip arthroplasty (THA) for severe hip deformities, where new and improved approaches are needed. THAs were performed from January 2015 to December 2016. Bioprosthesis artificial hip joints were used in both conventional and 3D printing hip arthroplasties. A total of 74 patients (57 cases undergoing conventional hip replacements and 17 undergoing 3D printing hip replacements) were followed-up for an average of 24 months. The average age of the patients was 62.7 years. Clinical data between the patients treated with different approaches were compared. Results showed that the time to postoperative weight bearing and the Harris scores of the patients in the 3D printing group were better than those for patients in the conventional hip replacement group. Unfortunately, the postoperative infection and loosening rates were higher in the 3D printing group. However, there were no significant differences in femoral neck anteversion, neck shaft, acetabular or sharp angles between ipsilateral and contralateral sides in the 3D printing group (P>0.05). The femoral neck anteversion angle was significantly different between the two sides in the conventional hip replacement group (P<0.05). Based on these results, we suggest that the 3D printing approach provides a better short-term curative effect that is more consistent with the physiological structure and anatomical characteristics of the patient, and we anticipate that its use will help improve the lives of many patients.
本研究旨在评估3D打印技术在严重髋关节畸形全髋关节置换术（THA）中的应用，此类病例需要新的改良方法。全髋关节置换术于2015年1月至2016年12月进行。传统和3D打印髋关节置换术中均使用生物假体人工髋关节。共74例患者（57例行传统髋关节置换，17例行3D打印髋关节置换）接受了平均24个月的随访。患者平均年龄为62.7岁。比较了不同治疗方法患者的临床数据。结果显示，3D打印组患者术后负重时间和Harris评分优于传统髋关节置换组患者。遗憾的是，3D打印组术后感染和松动率较高。然而，3D打印组同侧与对侧之间的股骨颈前倾角、颈干角、髋臼角或锐利角无显著差异（P>0.05）。传统髋关节置换组两侧股骨颈前倾角差异有统计学意义（P<0.05）。基于这些结果，我们认为3D打印方法提供了更好的短期疗效，更符合患者的生理结构和解剖特征，我们预计其应用将有助于改善许多患者的生活。
