Preoperative Risk Factors of Persistent Pain following Total Knee Arthroplasty

Table 3

Comparative analysis of postoperative parameters (in brackets range and standard deviation where applicable). kgf: kilogram-force.

	Group A	Group B
Flexion (°)	100 (80-120)	110 (90-120)	NS
Flexion contracture (°)	0 (0-20)	0 (0-15)	NS
KOOS pain			<0,0001
KOOS other symptoms			<0,0001
KOOS activities of daily life			<0,0001
KOOS quality of life			<0,0001
WOMAC			<0,0001
PPTs knee (kgf)	4,6 (2,5-8,0)	3,0 (1,0-10,0)	0,000277
PPTs forearm (kgf)	5,5 (3,2–9,0)	3,6 (1,0–10,0)	0,000675
Severe limitation of daily life	0%	25,6%	0,0149
Satisfaction	95,2%	67,4%	0,03151