Effectiveness of Different Pain Control Methods in Patients with Knee Osteoarthritis after Knee Arthroplasty

Table 11

Optimal knee flexion angle of the two groups after knee arthroplasty by anesthetic method ().

Parameters	Estimate value	Standard error	Wald chi-square	value
Intercept	72.441	1.590	2074.802	<.001
Time
T3 versus T2	12.768	1.266	101.657	<.001
T4 versus T2	21.249	1.387	234.793	<.001
Anesthetic method
GA versus SA	−2.184	4.552	.230	.631

Note: GEE = generalized estimating equations; ; ; T₂: postoperative day 1; T₃: postoperative day 2; T₄: postoperative day 3.