The value of Hounsfield units in predicting cage subsidence after transforaminal lumbar interbody fusion

Table 3 Correlations between HUm and other parameters

	HU	BMD-l	BMD-f	BMI	Preoperative disc height
BMD-l	0.467^a
BMD-f	0.661^a	0.696^a
BMI	−0.086	0.028	−0.004
Preoperative disc height	0.081	0.059	0.138^b	−0.138^b
Modified Taillard index	0.064	0.047	0.102	− 0.079	0.115

ISSN: 1471-2474