# Forgotten joint score one year after robot-assisted total knee arthroplasty

## TL;DR

This study found that robot-assisted knee replacement surgery leads to better joint awareness than conventional methods, especially in male patients.

## Contribution

The study identifies surgery type and sex as key predictors of joint awareness after total knee arthroplasty.

## Key findings

- raTKA patients had significantly higher Forgotten Joint Scores than cTKA patients.
- Male sex was a positive predictor of better joint awareness.
- Conventional TKA was associated with lower joint awareness scores.

## Abstract

The objective of this study was to analyze the postoperative results of patients who underwent cTKA compared to those who underwent robot-assisted total knee arthroplasty (raTKA). A retrospective analysis was conducted on patients who underwent primary TKA. Patients were classified into two groups based on prosthesis type. Functional outcomes were assessed using the Forgotten Joint Score (FJS). Statistical analysis included multiple linear regression to identify predictors of joint awareness. A total of 181 patients were analyzed (raTKA group: n = 90; cTKA group: n = 91). FJS scores were significantly higher in the raTKA group (72.5 [54.1–100]) than in the cTKA group (61.8 [39.6–91.7]; p = 0.004). Regression analysis identified the male sex (coef. = 11.50, p = 0.005) as a positive predictor of FJS, while cTKA group was associated with lower scores (coef. = − 9.09, p = 0.026). Body mass index showed no significant association with FJS (coef. = 0.65, p = 0.214). Surgery type and sex influence joint awareness after TKA. Male patients and those undergoing robotic-assisted TKA demonstrated superior functional perception.