Factors affecting postoperative HKA angle deviation
REGRESSION
To screen for factors affecting postoperative HKA angle, we first subjected the demographic data (age, preoperative KSS, sex, surgical side, and interventions), radiographic parameters (preoperative HKA angle and preoperative HKA angle deviation), and operation duration to single-factor linear regression analysis. The results showed that the preoperative HKA angle (Results of single-factor linear regression analysisKSS, Knee Society score; ROM, range of motion; VAS, 10-cm visual analog scale.
Subsequently, preoperative HKA angle, preoperative HKA angle deviation, preoperative KSS, interventions, and preoperative ROM were included in multiple linear regression analysis. After statistical analysis, a statistical significance was observed with respect to interventions (Results of multiple linear regression analysisKSS, Knee Society score; ROM, range of motion.
Based on the results of multiple linear regression analysis, patients were divided into slight lower extremity alignment deviation group (preoperative HKA angle deviation <6°) and severe lower extremity alignment deviation group (preoperative HKA angle deviation ≥6°). The follow-up imaging parameters and clinical outcomes were then analyzed