Distances between bony landmarks and adjacent nerves: anatomical factors that may influence retractor placement in total hip replacement surgery

Table 3 Multivariate analyses on distances from bony landmarks to adjacent nerves

Distances	B estimate	SE	P value	R ²
A acetabular rim to FN				0.578
Intercept	−4.938	0.588
Gender	−0.023	0.049	0.689
Age (years)	0.002	0.001	0.233
BH (cm)	0.052	0.006	<0.001
BMI (kg/m²)	−0.004	0.003	0.662
PW (cm)	−0.005	0.002	0.992
S acetabular rim to SGN				0.660
Intercept	−4.418	0.527
Gender	−0.059	0.039	0.197
Age (years)	0.001	0.003	0.794
BH (cm)	0.042	0.002	<0.001
BMI (kg/m²)	−0.002	0.005	0.619
PW (cm)	−0.001	0.001	0.431
P acetabular rim to SN				0.711
Intercept	−4.310	0.452
Gender	−0.065	0.039	0.096
Age (years)	0.000	0.001	0.843
BH (cm)	0.040	0.002	<0.001
BMI (kg/m²)	−0.002	0.003	0.649
PW (cm)	−0.001	0.001	0.393
G to SN				0.610
Intercept	−6.819	1.014
Gender	−0.133	0.084	0.129
Age (years)	0.000	0.001	0.948
BH (cm)	0.076	0.005	<0.001
BMI (kg/m²)	0.002	0.004	0.693
PW (cm)	−0.002	0.003	0.402

BH body height, BMI body mass index, SE standard error, R ² coefficient of determination, A anterior, FN femoral nerve, S superior, SGN superior gluteal nerve, P posterior, SN sciatic nerve, G greater trochanter

ISSN: 1749-799X