[Measurement of lower extremity length using computed tomography]

A new method for lower extremities length measurement in patients destined for surgical legalization is presented. It is based on a scan in investigational CT. Reference points are marked and the distance between them is calculated. The record is inclusive of synthetic, diminutive anterior-posterior image of the extremity along with the measurement. Since September 1990 to December 1993, 34 patient underwent this procedure. The advantage is sensitivity better than 1 mm, flexibility in choosing reference points, good reproducibility and little exposure to the radiation. The result is more precise and trustworthy then obtained with other radiological or clinical methods.