Total knee arthroplasty: Effect of obesity and other patients’ characteristics on operative duration and outcome

Table 1 Patient’s characteristics

Variable		Frequency (n)	%
Gender	Males	49	24
	Females	155	76
Type of TKR	Unilateral	163	79.9
	Bilateral	41	20.1
Co-morbidities	Hypertension	126	61.8
	Diabetes	84	41.2
	Dyslipidemia	67	32.8
BMI	Normal BMI (BMI value 18.5 to < 25)	9	4.4
	Overweight (BMI value 25 to < 30)	37	18.1
	Obesity class 1 (BMI value 30 to < 35)	47	23
	Obesity class 2 (BMI value 35 to < 40)	61	29.9
	Morbid obesity (BMI value > 40)	50	24.5
Post	DVT	2	1
Operative	PE	0	0
Complications	Infection	2	1

TKR: Total knee replacement; BMI: Body mass index; DVT: Deep venous thrombosis; PE: Pulmonary embolism.