Chinese Journal of Tissue Engineering Research ›› 2019, Vol. 23 ›› Issue (8): 1155-1160.doi: 10.3969/j.issn.2095-4344.1053

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Personalized three-dimensional printed osteotomy guider applied in total knee arthroplasty

Chen Yong, Wang Zenghui, Piao Chengzhe   

  1. Department of Orthopedics, Central Hospital Affiliated to Shenyang Medical College, Shenyang 110024, Liaoning Province, China
  • Online:2019-03-18 Published:2019-03-18
  • Contact: Piao Chengzhe, Professor, Chief physician, Department of Orthopedics, Central Hospital Affiliated to Shenyang Medical College, Shenyang 110024, Liaoning Province, China
  • About author:Chen Yong, MD, Attending physician, Department of Orthopedics, Central Hospital Affiliated to Shenyang Medical College, Shenyang 110024, Liaoning Province, China
  • Supported by:

     the Project of Shenyang Science and Technology Bureau, No. F16-206-9-16 (to PCZ)

Abstract:

BACKGROUND: Traditional total knee arthroplasty mainly depends on the intramedullary/extramedullary alignment guiders and intraoperative computer-assisted navigation technology, but both have disadvantages. Personalized three-dimensional printed osteotomy guider in total knee arthroplasty will not open the medullary cavity, can reduce the blood loss and incidence of fat embolism, and hold exact osteotomy.

OBJECTIVE: To explore the effectiveness and safety of three-dimensional printing technology-assisted total knee arthroplasty versus traditional total knee arthroplasty.
METHODS: Ten patients undergoing primary total knee arthroplasty from January 2017 to January 2018 were enrolled, and randomized into three-dimensional printing and traditional groups (n=5 per group), followed by undergoing total knee arthroplasty using personalized three-dimensional printed osteotomy guider and traditional technology, respectively. The Hospital for Special Surgery scores at baseline and 3 months postoperatively, operation time, blood loss, postoperative anatomical parameters on X-ray films (femoral flexion angle at orthographic and lateral knee, tibia angle), and incidence of complications were recorded in both groups.
RESULTS AND CONCLUSION: (1) The operation time and blood loss in the three-dimensional printing group were significantly less than those in the traditional group (P=0.000). (2) There were no significant differences in the Hospital for Special Surgery scores at 3 months postoperatively and anatomical parameters on X-ray films between two groups (P > 0.05). The Hospital for Special Surgery scores at 3 months postoperatively in both groups were significantly improved compared with the baseline (P=0.000). (3) Complications occurred in neither groups. (4) These results indicate that the three-dimensional printing technology and traditional technology both obtain satisfactory treatment outcomes in total knee arthroplasty. Additionally, personalized three-dimensional printed osteotomy can shorten the operation time and reduce blood loss. 

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程

Key words: Arthroplasty, Replacement, Knee, Prostheses and Implants, Joint Prosthesis, Tissue Engineering

CLC Number: