Overweight and obesity in hip and knee arthroplasty: Evaluation of 6078 cases

Table 10 Relationships between preferred prosthesis type, age at total hip arthroplasty, Harris Hip Score, body mass index, stages of overweight/obesity and gender

	Bicondylar surface replacement (Reference)		Long stem(Reference)		PFJ(Reference)		Unicondylar knee replacement (Reference)
	Regression coefficient B	P value	Regression coefficient B	P value	Regression coefficient B	P value	Regression coefficient B	P value
Bicondylar surface replacement
BMI			0.023 (0.001 to 0.045)	0.299	0.085 (0.023 to 0.147)	0.172	0.133 (0.104 to 0.162)	< 0.001
Age at THA			-0.046 (-0.057 to -0.035)	< 0.001	0.158 (0.131 to 0.185)	< 0.001	0.043 (0.033 to 0.053)	< 0.001
Gender			-0.097 (-0.307 to 0.113)	0.642	0.447 (-0.06 to 0.954)	0.378	-0.277 (-0.477 to -0.077)	0.167
HSS			0.070 (0.063 to 0.077)	< 0.001	-0.056 (-0.077 to -0.035)	< 0.001	-0.047 (-0.056 to -0.038)	< 0.001
Long stem
BMI	-0.023 (-0.045 to -0.001)	0.299			0.062 (-0.004 to 0.128)	0.348	0.110 (0.074 to 0.146)	< 0.05
Age at THA	0.046 (0.035 to 0.057)	< 0.001			0.204 (0.175 to 0.233)	< 0.001	0.089 (0.074 to 0.104)	< 0.001
Gender	0.097 (-0.113 to 0.307)	0.642			0.545 (-0.002 to 1.092)	0.320	-0.179 (-0.466 to 0.108)	0.532
HSS	-0.070 (-0.077 to -0.063)	< 0.001			-0.125 (-0.148 to -0.102)	< 0.001	-0.117 (-0.128 to -0.106)	< 0.001
PFJ
BMI	-0.085 (-0.147 to -0.023)	0.172	-0.062 (-0.128 to 0.004)	0.348			0.049 (-0.019 to 0.117)	0.472
Age at THA	-0.158 (-0.185 to -0.131)	< 0.001	-0.204 (-0.233 to -0.175)	< 0.001			-0.115 (-0.143 to -0.087)	< 0.001
Gender	-0.447 (-0.954 to 0.06)	0.378	-0.545 (-1.092 to 0.002)	0.320			-0.724 (-0.1262 to -0.186)	0.178
HSS	0.056 (0.035 to 0.077)	< 0.001	0.125 (0.102 to 0.148)	< 0.001			0.008 (-0.015 to 0.031)	0.711
Unicondylar knee replacement
BMI	-0.133 (-0.162 to -0.104)	< 0.001	-0.110 (-0.146 to -0.074)	< 0.05	-0.049 (-0.117 to 0.019)	0.472
Age at THA	-0.043 (-0.053 to -0.033)	< 0.001	-0.089 (-0.104 to -0.074)	< 0.001	0.115 (0.087 to 0.143)	< 0.001
Gender	0.277 (0.077 to 0.477)	0.167	0.179 (-0.108 to 0.466)	0.532	0.724 (0.186 to 1.262)	0.178
HSS	0.047 (0.038 to 0.056)	< 0.001	0.117 (0.106 to 0.128)	< 0.001	-0.008 (-0.031 to 0.015)	0.711

THA: Total hip arthroplasty; HHS: Harris Hip Score; BMI: Body mass index; PFJ: Patello-femoral joint.