Prediction of the skeletal medio-lateral dimension using non-invasive anthropometric measurements for the provision of ischial containment sockets: A pilot study

Background:Great emphasis is placed on the skeletal medio-lateral to maintain the normal adduction of the remnant femur and to ensure coronal plane stability in an ischial containment socket. Given the invasiveness of the skeletal medio-lateral measurement, an alternative approach using prediction based on non-invasive measures would be welcomed.Objectives:Determine the accuracy with which the skeletal medio-lateral dimension could be predicted using sex, stature, anterior–posterior dimension and iliofemoral angle.Study design:Cross-sectional.Method:Anthropometric measurements on 77 persons were recorded and used as input data into a standard multiple regression.Results:The regression model explained 59% of the variance in skeletal medio-lateral (r2 = 0.59) that was statistically significant (F(4, 72) = 25.37, p = 0.000). Only sex contributed significantly to the prediction of skeletal medio-lateral (β = 0.67, t = 6.15, p = 0.00). The degree of error associated with the regression model (sum of squared er...