Table 1.

Comparison of clinical and histomorphometric parameters in the 4 different age-matched groups of patients with hip osteoarthritis and osteoporosis.

	Osteoarthritis	Osteoarthritis + osteopenia	Osteoarthritis + osteoporosis	Femoral neck fracture
Number of patients (male/female)	11/9	11/9	9/11	8/12
Age (years)	71.7 ± 5.2	71.6 ± 7.2	73.0 ± 4.5	71.9 ± 9.0
Harris Hip Score	41.2 ± 8.6	33.4 ± 7.2	25.5 ± 7.6	73.9 ± 13.2*
Bone mineral density (T-score)	0.89 ± 0.85	−1.32 ± 0.84	−2.57 ± 0.51	−2.67 ± 0.51
Bone volume fraction (BV/TV) %	36.49 ± 7.73	32.93 ± 6.83	20.71 ± 5.23	20.77 ± 4.34

Values are ±SD; *calculated on the contralateral femur. P values are reported in the text.