Temporal patterns of commonly used clinical outcome scales during a 5-year period after total knee arthroplasty

Journal of Orthopaedics and Traumatology

Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 3 Temporal patterns of functional outcome scales during the 5-year period

Score	Preop.	p-Value	PO 6 months	p-Value	PO 1 year	p-Value	PO 2 years	p-Value	PO 5 years
ROM	127.2 (1.4)	< 0.001	133.8 (0.7)	0.436	134.2 (0.8)	0.043	133.2 (1.0)	< 0.001	130.2 (1.0)
AKS
Knee score (100)	44.4 (0.7)	< 0.001	95.2 (0.5)	0.001	93.5 (0.5)	0.001	95.0 (0.5)	< 0.001	92.5 (0.6)
Function score (100)	58.7 (1.0)	< 0.001	91.3 (0.9)	< 0.001	96.3 (0.8)	0.040	97.7 (0.6)	0.186	96.4 (0.9)
WOMAC
Pain (20)	11.4 (0.3)	< 0.001	3.0 (0.3)	0.012	2.2 (0.2)	0.329	1.9 (0.3)	0.002	3.2 (0.4)
Stiffness (8)	4.8 (0.2)	< 0.001	2.3 (0.1)	< 0.001	1.7 (0.1)	0.192	1.5 (0.1)	0.166	1.8 (0.2)
Function (68)	39.5 (1.0)	< 0.001	18.7 (0.9)	< 0.001	14.4 (0.8)	0.242	13.5 (0.8)	0.002	17.7 (1.3)
SF-36
PCS	29.3 (0.5)	< 0.001	41.3 (0.7)	< 0.001	45.4 (0.6)	0.356	44.6 (0.7)	0.002	42.0 (0.8)
MCS	42.0 (1.0)	0.001	46.8 (1.0)	0.086	48.9 (0.9)	0.854	49.1 (1.0)	0.002	44.8 (1.2)

Preop. preoperative, PO postoperative, ROM range of movement, AKS American Knee Society score, WOMAC Western Ontario and McMaster Universities Arthritis Index score, SF-36 36-Item Short Form Health Survey, PCS physical component summary, MCS mental component summary
Italics indicates significant p-values