Table 3. Demographic and Operative Characteristics.

BTP: buprenorphine transdermal patch, KTP: ketoprofen transdermal patch, ASA: American Society of Anesthesiologist.

		BTP (n = 50)		KTP (n = 50)	p value
Age (years)		62.52±4.385		63.24±4.880	0.8002
Gender		Male:	19	17
		Female:	31	33
ASA grade	I	10		13
	II	36		34
	III	4		3
Alignment		Varus	46	47
		Valgus	4	3
BMI		23.7±1.864		23.768±1.680	0.8034
Blood loss (ml)		266.04±45.071		269.68±45.962	0.5289
Operative time (minutes)		69.3±12.435		64.9±12.673	1.0000
Length of hospital stay (days)		6.38±1.550		6.6±1.653	0.4476