Chinese Journal of Tissue Engineering Research ›› 2018, Vol. 22 ›› Issue (19): 3049-3054.doi: 10.3969/j.issn.2095-4344.0305

Previous Articles     Next Articles

Application of three-dimensional printing-assisted osteotomy versus traditional osteotomy in total knee arthroplasty  

Wang Xuan, Yu Zhuo-li, Ji Nan, Wang Shuang, Fan Jing-xu, Qiao Yue-yue   

  1. Department of Orthopedics, 202th Hospital of PLA, Shenyang 110034, Liaoning Province, China
  • Online:2018-07-08 Published:2018-07-08
  • Contact: Yu Zhuo-li, Master, Associate chief physician, Department of Orthopedics, 202th Hospital of PLA, Shenyang 110034, Liaoning Province, China
  • About author:Wang Xuan, Physician, Department of Orthopedics, 202th Hospital of PLA, Shenyang 110034, Liaoning Province, China

Abstract:

BACKGROUND: Total knee arthroplasty has been developed for many years. With the development of material science and biomechanics, the material and design of knee prosthesis have become mature. In recent years, with the emergence of three-dimensional (3D) printing technology, and its gradual application in medical field, 202th Hospital of PLA has developed the knee arthroplasty with 3D printing-assisted osteotomy.

OBJECTIVE: To understand the advantages and disadvantages of 3D-printed osteotomy in total knee arthroplasty by comparing with the traditional osteotomy method.
METHODS: Data of the eligible patients with unilateral knee osteoarthritis undergoing primary arthroplasty at Department of Orthopedics, 202th Hospital of PLA from May 2014 to December 2016 were analyzed retrospectively. Twenty-seven patients underwent 3D printed osteotomy (group A), and 32 patients underwent traditional osteotomy method (group B). The operation time, intraoperative blood loss and postoperative drainage were compared. The Hospital for Special Surgery scores and range of motion of knee joint were evaluated at 1, 3 and 6 months postoperatively. The postoperative limb alignment (angle between the line of the femoral head center and knee joint center and the line of the anatomical axis of tibia) was measured.
RESULTS AND CONCLUSION: (1) Guide plates of 3D-printed osteotomy all matched with the knee joint. (2) In the group A, the operation time, intraoperative blood loss and postoperative drainage were reduced. (3) There were no significant differences in the Hospital for Special Surgery scores at 1, 3 and 6 months postoperatively between two groups (P > 0.05). (4) The range of motion of knee joint showed no significant difference at 1, 3 and 6 months postoperatively between two groups (P > 0.05). (5) The limb alignment angle in the groups A and B was (179.37±2.03)° and (178.86±2.58)°, respectively, and the difference was insignificant (P > 0.05). (6) These results suggest that 3D-printed osteotomy applied in total knee arthroplasty can significantly shorten the operation time, reduce perioperative blood loss, contribute to perioperative blood management, and play no effect on the limb alignment and joint function within 6 months.

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, Osteotomy, Tissue Engineering

CLC Number: