Table 4.

Changes in radiographic measurements from baseline (early postoperative) to 15 years in the contralateral side

Parameter	Group 1	Group 2	Group 3	p Value
Number of hips	11	13	14
Cortical index
Below lesser trochanter	−0.05	0.33	−4.66	0.0069*
Midstem	−1.45	0.09	−2.15	0.0812
Above tip	−0.98	−0.55	−3.38	0.1459
Femur outer diameter
Below lesser trochanter	0.06	−0.41	−0.03	0.7497
Midstem	−0.30	−0.50	−0.09	0.8387
Above tip	−0.04	−0.77	0.12	0.4832
Cortical thickness
Below lesser trochanter	0.06	0.05	−1.69	0.0058*
Midstem	−0.49	−0.18	−0.57	0.9055
Above tip	−0.26	−0.48	−0.70	0.8046

A positive number indicates an increase at 15 years, and a negative number indicates a decrease at 15 years; *p < 0.01.