Higher preoperative Advanced Activities Score of the 2011 Knee Society Score is associated with greater patient satisfaction after ground kinematically aligned total knee arthroplasty
- 1Department of Orthopaedic Surgery Kobe University Graduate School of Medicine Kobe Japan.
- 2Department of Orthopaedic Surgery Kobe Kaisei Hospital Kobe Japan.
Abstract
Purpose
Ground kinematically aligned total knee arthroplasty, which uses the ground mechanical axis as a reference, has shown favourable clinical outcomes. Nevertheless, preoperative factors associated with post-operative satisfaction remain unclear. This study aimed to identify preoperative predictors of patient satisfaction after ground kinematically aligned total knee arthroplasty using patient-reported outcome measures.Methods
A total of 117 consecutive patients with varus knee osteoarthritis who underwent primary ground kinematically aligned total knee arthroplasty were retrospectively analyzed. Patients were classified into excellent satisfaction (≥32 points) and suboptimal satisfaction (<32 points) groups based on the satisfaction subscale of the 2011 Knee Society Score. Stepwise multiple regression analysis was performed to identify preoperative factors associated with post-operative satisfaction. Receiver operating characteristic curve analysis was used to determine the cut-off value of the preoperative Advanced Activities Score for excellent satisfaction. Multivariable logistic regression analysis was performed to identify factors independently associated with excellent post-operative satisfaction.Results
Preoperative Advanced Activities Score was significantly associated with post-operative satisfaction (B = 0.057). Receiver operating characteristic analysis identified an optimal cut-off value of 12 (sensitivity = 0.744; specificity = 0.677). Multivariable logistic regression confirmed that higher preoperative Advanced Activities Score was independently associated with excellent post-operative satisfaction (odds ratio = 1.320; p < 0.001).Conclusions
Higher preoperative activity level was associated with greater post-operative satisfaction after ground kinematically aligned total knee arthroplasty.Level of evidence
Level III.
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BibTeX
@article{hayashi2026higher,
title = {{Higher preoperative Advanced Activities Score of the 2011 Knee Society Score is associated with greater patient satisfaction after ground kinematically aligned total knee arthroplasty}},
author = {Takuma Hayashi and Tomoyuki Matsumoto and Kemmei Ikuta and Masanori Tsubosaka and Tomoyuki Kamenaga and Yuichi Kuroda and Naoki Nakano and Kazunari Ishida and Shinya Hayashi and Ryosuke Kuroda},
journal = {Journal of experimental orthopaedics},
year = {2026},
month = oct,
doi = {10.1002/jeo2.70974},
url = {https://europepmc.org/article/PMC/PMC13718614},
note = {CC BY},
}
RIS
TY - JOUR
TI - Higher preoperative Advanced Activities Score of the 2011 Knee Society Score is associated with greater patient satisfaction after ground kinematically aligned total knee arthroplasty
AU - Takuma Hayashi
AU - Tomoyuki Matsumoto
AU - Kemmei Ikuta
AU - Masanori Tsubosaka
AU - Tomoyuki Kamenaga
AU - Yuichi Kuroda
AU - Naoki Nakano
AU - Kazunari Ishida
AU - Shinya Hayashi
AU - Ryosuke Kuroda
PY - 2026
DA - 2026/10/01
JO - Journal of experimental orthopaedics
DO - 10.1002/jeo2.70974
UR - https://europepmc.org/article/PMC/PMC13718614
AB - Purpose Ground kinematically aligned total knee arthroplasty, which uses the ground mechanical axis as a reference, has shown favourable clinical outcomes. Nevertheless, preoperative factors associated with post-operative satisfaction remain unclear. This study aimed to identify preoperative predictors of patient satisfaction after ground kinematically aligned total knee arthroplasty using patient-reported outcome measures.Methods A total of 117 consecutive patients with varus knee osteoarthritis who underwent primary ground kinematically aligned total knee arthroplasty were retrospectively analyzed. Patients were classified into excellent satisfaction (≥32 points) and suboptimal satisfaction (<32 points) groups based on the satisfaction subscale of the 2011 Knee Society Score. Stepwise multiple regression analysis was performed to identify preoperative factors associated with post-operative satisfaction. Receiver operating characteristic curve analysis was used to determine the cut-off value of the preoperative Advanced Activities Score for excellent satisfaction. Multivariable logistic regression analysis was performed to identify factors independently associated with excellent post-operative satisfaction.Results Preoperative Advanced Activities Score was significantly associated with post-operative satisfaction (B = 0.057). Receiver operating characteristic analysis identified an optimal cut-off value of 12 (sensitivity = 0.744; specificity = 0.677). Multivariable logistic regression confirmed that higher preoperative Advanced Activities Score was independently associated with excellent post-operative satisfaction (odds ratio = 1.320; p < 0.001).Conclusions Higher preoperative activity level was associated with greater post-operative satisfaction after ground kinematically aligned total knee arthroplasty.Level of evidence Level III.
SN - 2197-1153
ER -