Bone Indices in Thyroidectomized Patients on Long-Term Substitution Therapy with Levothyroxine Assessed by DXA and HR-pQCT

Table 4

Bone indices as measured by DXA scans in patients on long-term treatment with levothyroxine and matched controls. Median with interquartile (25%–75% percentiles) range.

	Patients; ( = 49)	Controls; ( = 49)	value
Areal BMD by DXA, g/cm^2
Hip
Total	0.902 (0.824–0.990)	0.904 (0.810–0.991)	0.90
Fem neck	0.740 (0.678–0.812)	0.724 (0.662–0.846)	0.73
Spine	1.006 (0.878–1.118)	1.029 (0.906–1.107)	0.73
Forearm
Total	0.522 (0.478–0.583)	0.536 (0.495–0.584)	0.50
Ultra distal	0.381 (0.336–0.434)	0.387 (0.341–0.423)	0.69
MID	0.549 (0.486–0.612)	0.551 (0.518–0.602)	0.53
1/3	0.656 (0.611–0.737)	0.692 (0.629–0.732)	0.29
Whole body	1.124 (1.053–1.185)	1.151 (1.048–1.254)	0.15
Subtotal	0.942 (0.893–1.026)	0.999 (0.901–1.076)	0.11
Body composition
Fat mass (Kg)	23.7 (17.8–29.7)	22.9 (15.7–28.0)	0.41
Lean tissue mass (Kg)	50.2 (44.7–55.9)	48.2 (44.7–54.7)	0.50