Risk factor analysis for early femoral failure in metal-on-metal hip resurfacing arthroplasty: the effect of bone density and body mass index

Table 3 Risk analysis between failure rates with T-score, body mass index, or combined.

Variable	Threshold	Failure Rate	Percentage	P-Value
T-score	T ≥ 0	0/172	0%	0.003
	0 > T > -1.5	2/161	1.2%
	T ≤ -1.5	3/40	8%
Body mass index (kg/m²)	< 29	1/234	0.4%	0.05
	≥ 29	4/139	2.9%
Combined	T < -1.5 & BMI ≥ 29	3/12	25%	< 0.001
	Others	2/361	0.6%

ISSN: 1749-799X