Table 2. Outcomes at 5 Years Following Medial UKA.

Variable	UKA patient (n = 1,075)	Change*	MCID	p-value*
Flexion range (°)	130 ± 11	2 ± 2	NA	< 0.001
Alignment (°)	5 ± 2 valgus	8 ± 3	NA	< 0.001
Knee Society Knee Score†	87 ± 13	40 ± 24	NA	< 0.001
Knee Society Function Score†	78 ± 18	18 ± 20	NA	< 0.001
Oxford Knee Score‡	18 ± 5	14 ± 10	5	< 0.001
SF-36 Physical Component Score§	73 ± 20	24 ± 20	10	< 0.001
SF-36 Mental Component Score§	71 ± 18	22 ± 20	NA	< 0.001

Values are presented as mean ± standard deviation.

UKA: unicompartmental knee arthroplasty, MCID: minimal clinically important difference, NA: not applicable, SF-36: Short Form 36.

^*Compared to preoperative values. ^†A higher score represents a better outcome. ^‡A higher score represents a worse outcome. §A higher score represents a better outcome.