*Liu, X.-C.; +**Rizza, R.; *Thometz, J.; *Tassone, C. *Dept. of Orthopaedic Surgery, Medical College of Wisconsin. +**Dept. of Mechanical Engineering, Milwaukee School of Engineering, Milwaukee, WI [email protected] INTRODUCTION: For the treatment of scoliosis, traditional instrumentations such as Cotrel-Dubousset are very rigid and effect spine growth. Recently, spinal Fusionless instrumentation ...

Results The differences between the 90 measurements made with two different methods has never exceeded the commonly accepted measurement error (+ / -5 °), while the average of these differences was 0.02 ° (St. Dev. 1.89). The normal distribution demonstrates the high degree of correlation between the two methods of measurement. To evaluate the degree of consistency among the 30 measurements per...

Fixation to the sacrum and pelvis is a problem in the operative treatment of spinal deformity. Previous testing of pedicle screws address axial pull-out strength, yet how screws are loaded in vivo remains unknown. The goals of this study were to determine the loads experienced by sacral screws when loaded as part of Cotrel-Dubousset (CD) sacral instrumentation and whether different anterior gra...

BACKGROUND Since the time of Paul Harrington numerous implants have been introduced for correction of scoliosis, but none are ideal. Newer devices are very expensive, and in our country some patients cannot afford them. OBJECTIVES The aim of this study was to compare the results of the Harrington rod (HR) device and the newer Cotrel-Dubousset (CD) device in treatment of adolescent idiopathic ...

pedicle screws provide rigid fixation for instabilities in the lumbar and lumbosacral spine. anatomical consideration and potential risk of neurologic complications are the reasons to hesitate using pedicle screws in the thoracic spine. twenty moulages similar to human vertebrae were instrumented with cotrel-dubousset (cd) system pedicle screw by intratransverse process, extrapedicular and intr...