A Geometric Model to Determine Patient-Specific Cup Anteversion Based on Pelvic Motion in Total Hip Arthroplasty

Table 3

Age and spinopelvic measurements of the 24 subjects included in this study. Significant difference between standing and sitting pelvic tilts (p < 0.001).

	Average	Minimum	Maximum	Standard Deviation
Age (years)	65.6	48	81	7.1
Standing Pelvic Tilt (°)	4.2	-8.3	25.6	7.7
Sitting Pelvic Tilt (°)	23.4	5.1	41	10.6
Change in Pelvic Tilt (°)	19.3	1.6	37.5	9.9
Standing Sacral Slope (°)	41.7	9.8	64.3	14.9
Sitting Sacral Slope (°)	24.3	0.6	53.4	14.7
Change in Sacral Slope (°)	-17.5	-46.3	23.2	15.6
Standing Lumbar Lordosis (°)	45.5	10.6	68.4	17.0
Sitting Lumbar Lordosis (°)	32.3	3.5	67.0	17.0
Change in Lumbar Lordosis (°)	-13.2	-37.4	22.5	14.5