J Knee Surg 2021; 34(11): 1155-1161
DOI: 10.1055/s-0040-1702188
Original Article

Application of Personalized Navigation Templates to Oxford Single Condylar Replacement in a Chinese Population

Yudong Gan
1   Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, China
,
Jian Zhuang
1   Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, China
,
Wenxiao Jiang
1   Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, China
,
Wei Sun
1   Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, China
,
Yijun Zhang
1   Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, China
› Author Affiliations
Funding None.

Abstract

The purpose of this study is to develop and validate a novel patient-specific navigational template for unicompartmental knee arthroplasty (UKA). A total of 120 patients who underwent UKA were randomized and divided into the conventional method and navigational template groups. In the navigational template group, patient-specific navigational templates were designed and used intraoperatively to assist 60 patients with UKA. Information on operation time and blood loss was recorded by an independent operating room nurse. After surgery, the positions of the prostheses were evaluated using X-rays. All navigation templates were found to fit its corresponding biomodel appropriately without any free movement. The navigational template exhibited significantly better accuracy than the conventional method. Statistically significant differences in the femoral prosthesis flip angle, femoral prosthesis flexion angle, and tibial plateau varus and valgus angle were observed between the two groups (p = 0.022, 0.042, 0.043, respectively). In addition, the mean operation time was statistically and significantly lower in the navigational template group than in the conventional group (p = 0.035). This study introduces a novel navigational template to UKA, the accuracy of which is proven by clinical operation. This is a Level III, therapeutic study.

Note

The work described has not been published before; it is not under consideration for publication anywhere else; its publication has been approved by all coauthors; the work has been performed at Qilu Hospital of Shandong University.




Publication History

Received: 05 March 2019

Accepted: 07 January 2020

Article published online:
06 March 2020

© 2020. Thieme. All rights reserved.

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333 Seventh Avenue, 18th Floor, New York, NY 10001, USA

 
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