Value of 3D Preoperative Planning for Primary Total Hip Arthroplasty Based on Biplanar Weightbearing Radiographs

Table 1

Global description of data collected.

	N	mean	SD	median	Q1	Q3	min	max
Size of femoral component implanted	33	11.7	1.7	12	11	13	8	15
Size of acetabular component implanted	33	51.6	3.0	52	50	54	46	56
Preop anatomical leg length (mm)	33	778.3	54.6	777	739	824	664	866
Postop anatomical leg length (mm)	33	782.2	55.2	780	741	827	663	874
Preop-postop change in leg length on EOS (mm)	33	3.8	5.7	3.0	-1.0	8.0	-6.0	14.0
Preop femoral offset (mm)	33	40.9	6.1	42.0	35.0	46.0	28.0	53.0
Postop femoral offset (mm)	33	41.2	5.2	40.0	37.0	45.0	34.0	52.0
Preop-postop change in offset on EOS (mm)	33	0.3	5.0	0.0	-4.0	4.0	-9.0	11.0
Size of femoral component planned	33	11.4	1.4	11	11	13	8	14
Size of acetabular component planned	33	51.0	3.0	50	48	54	46	58
Difference in leg length from planned length (mm)	33	1.9	2.0	2.0	0.0	3.0	-3.0	6.0
Difference in offset from planned offset (mm)	33	0.6	4,.	1.0	-1.0	3.0	-9.0	10.0

standard deviation.