Global Trends in Joint Arthroplasty: A Systematic Review and Future Projections.

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Abstract

Conflict of interest statement: The authors declare no conflict of interest. 13. Orthop Traumatol Surg Res. 2023 Sep;109(5):103583. doi: 10.1016/j.otsr.2023.103583. Epub 2023 Mar 4. Is hybrid fixation in revision TKA using LCCK prostheses reliable? Laudren A(1), Delacroix R(2), Huten D(2). Author information: (1)Service d'orthopédie-traumatologie, CHU de Rennes, Rennes, France. Electronic address: arthur.laudren@chu-rennes.fr. (2)Service d'orthopédie-traumatologie, CHU de Rennes, Rennes, France. INTRODUCTION: The optimal technique for component fixation in revision total knee arthroplasty (rTKA) remains controversial: full cementation (FC) versus hybrid fixation (HF), which involves press-fit stem with cement fixation in the metaphyseal and epiphyseal zones. Previous series have either demonstrated the superiority of one or the other of these techniques or their equivalence. However, few studies have compared these 2 methods for rTKA using the Legacy® Constrained Condylar Knee (LCCK) prosthesis (Zimmer, Warsaw, Indiana, USA). HYPOTHESIS: Our hypothesis was that HF of LCCK components is associated with a higher rate of aseptic loosening (AL) than FC. MATERIALS AND METHODS: This was a single-center, multi-surgeon, retrospective study. Primary revisions between January 2010 and December 2014 were included for all indications. The only exclusion criterion was death without revision before the 5-year follow-up. The primary objective of this study was to compare the survivorship of 2 groups of LCCK components (femoral or tibial), depending on whether their stems had been cemented (HF versus FC), taking AL, revised or not, as the endpoint. The secondary objective was to look for other predictive factors of AL. RESULTS: A total of 75 rTKAs (150 components) were included. The FC group (51 components) had more Anderson Orthopedic Research Institute (AORI) type 2B and type 3 bone defects (BDs) (p