Radiology 9 Springer-Verlag 1991 Radiographic imaging for llizarov limb lengthening in children

Abstract. The Ilizarov method for limb lengthening is rapidly gaining popularity in North America. Use of this new technique has necessitated modifications in radio-graphic protocol. Initial imaging problems gained from our experience with twenty children are detailed includ-ing accurate centering for the plain films, correcting for magnification to accurately measure the distraction gap and the expected radiographic appearance ofthe regener-ate bone. Ultrasonography has potential value in accu-rately measuring the distraction gap and in imaging the new bone prior to radiographic appearance. Since overly fast distraction inhibits bone formation and overly slow distraction leads to premature consolidation, ultrasound may serve a useful role in the qualitative evaluation of new bone formation in Ilizarov limb lengthening, enabling th