Radiologische Messungen des Verhaltens lumbaler Bandscheiben bei idiopathischer Skoliose anhand der sogenannten „Bending“-Aufnahmen

Abstract

Total disc mobility, segmental mobility, both depending upon location of the disc and upon its position within the scoliotic curve as well as the opening angle of the disc in the ap x-ray were measured in the so-called "bending-test" x-rays of the lumbar curve of 40 patients with idiopathic scoliosis. The measurements showed a maximum of mobility in the segments L2/3, L3/4 and L4/5. In no direct dependence an increased mobility of the most proximal motion segment against the next lower one of the lumbar curve was found. No direct relation between lateral flexion and degree of scoliosis was measurable. Mobility towards the convexity increases directly with the opening angle of the disc concerned while mobility towards the concavity decreases; lateral flexion remains constant altogether. The results achieved might become quite relevant in connection with the possible therapeutic progress in the treatment of lumbar scoliosis with enzymatic dissolution of nucleus pulposus.