A Retrospective Study of Unicompartmental Knee Arthroplasty Functional Outcome and the Incidence of Medial Meniscus Posterior Root Tear in Spontaneous Osteonecrosis of the Knee

Table 4

Statistical comparison of pre- and postoperative outcome scores.

Preoperative	Postoperative	95% CI		value
Preop VAS	Postop VAS	(5.0700, 5.7995)	30.901	<0.001
Preop OKS	Postop OKS	(21.2991, 26.5269)	18.973	<0.001

VAS: Visual Analogue Scale; OKS: Oxford Knee Score.