Fig. 3

Bar chart showing AED attendance rates of different UKA systems: 3A, No difference was observed between different UKA systems in AED attendance rates; 3B, 30-day AED attendance rates were significantly lower in conventional biUKA than in uUKA; 3C, 90-day AED attendance rates of all biUKA were lower than those of uUKA across all systems, with conventional UKA being most significant