Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025
Restoring native posterior tibial slope within 4° leads to better clinical outcomes after cruciate-retaining robot-assisted total knee arthroplasty with functional alignment.
СтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Cho Young Tak, Jung Ho Jung, Kim Joong Il
Аннотация
PURPOSE: The impact of posterior tibial slope (PTS) on clinical outcomes after robot-assisted total knee arthroplasty (RTKA) with functional alignment (FA) remains unclear. This study aimed to evaluate the effect of PTS on clinical outcomes following RTKA with FA.
METHODS: A prospectively collected database was retrospectively reviewed for patients who underwent primary cruciate-retaining RTKA (CR-RTKA) with FA using the MAKO robotic system, with a minimum 1-year follow-up. Knees were categorized into two groups: the small change (SC) group (n = 47) with a small PTS change (<4°) and the large change (LC) group (n = 53) with a large PTS change (≥4°). PTS change was defined as differences between pre- and post-operative PTS values. At the 1-year follow-up, clinical outcomes including Knee Society Score (KSS), Western Ontario and McMaster University Index (WOMAC), Forgotten Joint Score-12 (FJS-12) and post-operative complications were compared between groups. A multiple linear regression analysis was conducted to identify independent factors influencing post-operative WOMAC scores.
RESULTS: The SC group demonstrated significantly better post-operative clinical outcomes than the LC group (KSS-functional score: 85.63 ± 13.00 vs. 77.08 ± 18.39, p = 0.026; WOMAC: 10.46 ± 5.36 vs. 16.98 ± 10.69, p < 0.001; FJS-12: 75.94 ± 21.96 vs. 61.37 ± 26.61, p = 0.019). In multivariate regression analysis, PTS change was identified as an independent factor correlated with the post-operative WOMAC score (β: 0.842, p = 0.001). No post-operative complications were observed in either group during the follow-up period.
CONCLUSIONS: Restoring the native PTS within 4° leads to better clinical outcomes following CR-RTKA with FA without post-operative complications for up to 1 year. Therefore, efforts to restore the native PTS are critical for achieving optimal short-term clinical outcomes after CR-RTKA with FA.
LEVEL OF EVIDENCE: Level III.
METHODS: A prospectively collected database was retrospectively reviewed for patients who underwent primary cruciate-retaining RTKA (CR-RTKA) with FA using the MAKO robotic system, with a minimum 1-year follow-up. Knees were categorized into two groups: the small change (SC) group (n = 47) with a small PTS change (<4°) and the large change (LC) group (n = 53) with a large PTS change (≥4°). PTS change was defined as differences between pre- and post-operative PTS values. At the 1-year follow-up, clinical outcomes including Knee Society Score (KSS), Western Ontario and McMaster University Index (WOMAC), Forgotten Joint Score-12 (FJS-12) and post-operative complications were compared between groups. A multiple linear regression analysis was conducted to identify independent factors influencing post-operative WOMAC scores.
RESULTS: The SC group demonstrated significantly better post-operative clinical outcomes than the LC group (KSS-functional score: 85.63 ± 13.00 vs. 77.08 ± 18.39, p = 0.026; WOMAC: 10.46 ± 5.36 vs. 16.98 ± 10.69, p < 0.001; FJS-12: 75.94 ± 21.96 vs. 61.37 ± 26.61, p = 0.019). In multivariate regression analysis, PTS change was identified as an independent factor correlated with the post-operative WOMAC score (β: 0.842, p = 0.001). No post-operative complications were observed in either group during the follow-up period.
CONCLUSIONS: Restoring the native PTS within 4° leads to better clinical outcomes following CR-RTKA with FA without post-operative complications for up to 1 year. Therefore, efforts to restore the native PTS are critical for achieving optimal short-term clinical outcomes after CR-RTKA with FA.
LEVEL OF EVIDENCE: Level III.