Improving the cementation of the tibial component in knee arthroplasty

Author:

Rodríguez-Collell Juan Ramón1,Mifsut Damian2ORCID,Ruiz-Sauri Amparo3,Rodríguez-Pino Luis2ORCID,González-Soler Eva María1,Valverde-Navarro Alfonso Amador1

Affiliation:

1. Department of Human Anatomy and Embryology, University of Valencia, Valencia, Spain

2. Department of Surgery, University of Valencia, Valencia, Spain

3. Department of Pathology, University of Valencia, Valencia, Spain

Abstract

Aims The main objective of this study is to analyze the penetration of bone cement in four different full cementation techniques of the tibial tray. Methods In order to determine the best tibial tray cementation technique, we applied cement to 40 cryopreserved donor tibiae by four different techniques: 1) double-layer cementation of the tibial component and tibial bone with bone restrictor; 2) metallic cementation of the tibial component without bone restrictor; 3) bone cementation of the tibia with bone restrictor; and 4) superficial bone cementation of the tibia and metallic keel cementation of the tibial component without bone restrictor. We performed CT exams of all 40 subjects, and measured cement layer thickness at both levels of the resected surface of the epiphysis and the endomedular metaphyseal level. Results At the epiphyseal level, Technique 2 gave the greatest depth compared to the other investigated techniques. At the endomedular metaphyseal level, Technique 1 showed greater cement penetration than the other techniques. Conclusion The best metaphyseal cementation technique of the tibial component is bone cementation with cement restrictor. Additionally, if full tibial component cementation is to be done, the cement volume used should be about 40 g of cement, and not the usual 20 g. Cite this article: Bone Joint Res 2021;10(8):467–473.

Publisher

British Editorial Society of Bone & Joint Surgery

Subject

Orthopedics and Sports Medicine,Surgery

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