Modern cementless posterior stabilized mobile-bearing total knee arthroplasty shows comparable clinical and radiographical results to its cemented predecessor at 1-year follow-up.

Autor: Mikashima, Yoshinori, Imamura, Hitoshi, Shirakawa, Yoshiko, Yano, Koichiro, Ikari, Katsunori, Okazaki, Ken
Zdroj: Knee Surgery, Sports Traumatology, Arthroscopy; Sep2022, Vol. 30 Issue 9, p3131-3137, 7p, 1 Black and White Photograph, 3 Illustrations, 4 Charts, 1 Graph
Abstrakt: Purpose: The purpose of this study was to evaluate perioperative and short-term clinical and radiographical results of a modern PS mobile-bearing cementless TKA system. Methods: A retrospective review of a consecutive series of TKAs was performed by a single surgeon using a cementless or cemented TKA of the same design (Attune, DePuy Synthes, Massachusetts, USA). The 2011 Knee Society Score, Forgotten Joint Score-12, Hip-Knee-Ankle angle, and the presence of radiolucent lines (RLLs) were reviewed 1-year postoperatively with 1:1 matching performed for age, gender, body mass index, and preoperative UCLA score. Fisher's exact test or independent Student's t-test were used for statistical analyses. Results: Forty-five cementless and 45 cemented TKAs were reviewed after 1:1 matching. The mean operative time was 8.8 min shorter (P <.01), and the mean amount of drainage was 40.0 ml greater (P =.04) in the cementless cohort. At 1-year postoperatively, there were no significant differences in both cohorts in 2011 Knee Scores and Forgotten Joint Scores-12, with no patients requiring revision surgery (NS). The incidence of RLLs was significantly higher in cementless TKAs (51%) than that in cemented TKAs (22%, P <.01). However, the mean width of RLLs in the cementless TKAs (0.2 mm) was significantly smaller (P <.01) than that in the cemented TKAs (0.8 mm) at 1-year postoperatively with no progression. Conclusion: A recently introduced cementless PS mobile-bearing TKA design demonstrated comparable postoperative and radiographical results to its cemented predecessor at 1-year follow-up. Level of Evidence: Retrospective cohort study, Level III. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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