Measurement for gap balancing technique in patients undergoing total knee arthroplasty: a large retrospective observational study

Journal of Orthopaedic Surgery and Research

Ren Chongxi¹  Zhao Bin²  Cao Kanduo²  Zhao Xuequan²  Yao Shuzhang² 

[1] Department of Oncology Surgery, Cangzhou Clinical College of Integrated Traditional Chinese and Western Medicine of Hebei Medical University;Department of Orthopaedics, Cangzhou Clinical College of Integrated Traditional Chinese and Western Medicine of Hebei Medical University;

关键词: Total knee arthroplasty;    Osteotomy location;    Gap-balanced;    Measuring method;   

DOI  :  10.1186/s13018-022-03104-6

来源: DOAJ

【 摘 要 】

Abstract Background Many traditional methods are available to prevent unbalance of extension and flexion gap during total knee arthroplasty (TKA), but there are no reports on the use of measurement and positioning method before tibial osteotomy with self-made tools. We designed a self-made tool measuring the location before tibial osteotomy and determined the clinical effect. Methods The retrospective study included patients who received TKA at our hospital, between January 1, 2012 and December 31, 2015. A new method, named as the measurement and localization before osteotomy with self-made tools, was developed to measure the osteotomy position of the posterior femoral condyle during TKA. They were divided into two groups, one that received the new method (Group I), and the other that received the traditional method as a control (Group I I). HSS score, Oxford score, VAS score and knee joint activity were evaluated in two groups. Results One hundred and eighty-seven of 210 eligible patients were included. The function of knee joint in all patients was improved and the pain was obviously relieved. Significant differences were found in the HSS score, Oxford score, VAS score, knee joint activity between two groups at 5-year follow-up (p < 0.05). Conclusions The biomet knee prosthesis was selected for all intraoperative implants. All operations were completed by the same senior surgeon. The use of self-made tools may contribute to improve the balance between flexion and extension gaps as well as the balance between internal and external gaps during TKA, and overcome knee flexion instability.

【 授权许可】

Unknown