Multilevel analysis of trunk surface measurements for noninvasive assessment of scoliosis deformities.

摘要: STUDY DESIGN Reliability study. OBJECTIVES To assess between-acquisition reliability of new multilevel trunk cross sections measurements, in order to define what is a real change when comparing 2 surface acquisitions same patient, before and after surgery or throughout the clinical monitoring. SUMMARY OF BACKGROUND DATA Several cross-sectional measurements have been proposed literature for noninvasive assessment deformity patients with adolescent idiopathic scoliosis (AIS). However, only maximum values along are evaluated used monitoring progression assessing treatment outcome. METHODS Back rotation (BSR), (TR), coronal sagittal deviation computed on 300 trunk. Each set measures represented as single functional data, using basis functions. evaluate variability at all levels, test-retest study conducted 35 AIS. A correlation analysis also carried out any redundancy between measurements. RESULTS was successfully described 10 The good very over trunk, except above shoulders level. typical errors measurement 1.20° 2.2° rotational 6 mm measures. There strong BSR TR moderate both TR, no other measurement. CONCLUSION This novel representation allows global deformity. Multilevel provide broader perspective allow reliable during follow-up AIS esthetic outcome surgery.