Biomechanical analysis of differing pedicle screw insertion angles
نویسندگان
چکیده
منابع مشابه
Biomechanical analysis of differing pedicle screw insertion angles.
BACKGROUND Pedicle screw fixation to stabilize lumbar spinal fusion has become the gold standard for posterior stabilization. A significant percentage of surgical candidates are classified as obese or morbidly obese. For these patients, the depth of the incisions and soft tissue makes it extremely difficult to insert pedicle screws along the pedicle axis. As such, the pedicle screws can only be...
متن کاملBiomechanical Analysis of Pedicle Screw Fixation for Thoracolumbar Burst Fractures.
Treatment of unstable thoracolumbar burst fractures remains controversial. Long-segment pedicle screw constructs may be stiffer and impart greater forces on adjacent segments compared with short-segment constructs, which may affect clinical performance and long-term out come. The purpose of this study was to biomechanically evaluate long-segment posterior pedicle screw fixation (LSPF) vs short-...
متن کاملGuided pedicle screw insertion: techniques and training.
BACKGROUND CONTEXT In spinal fusion surgery, the accuracy with which screws are inserted in the pedicle has a direct effect on the surgical outcome. Accurate placement generally involves considerable judgmental skills that have been developed through a lengthy training process. Because the impact of misaligning one or more pedicle screws can directly affect patient safety, a number of navigatio...
متن کاملTrue anteroposterior view pedicle screw insertion technique
BACKGROUND The wide use of minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF) surgery in the treatment of degenerative disc disease of lumbar spine in spinal surgery highlights the gradual decrease in the use of traditional pedicle screw insertion technology. This study aims to analyze the accuracy of the true anteroposterior view pedicle screw insertion technique in MIS-TLIF ...
متن کاملBiomechanical study of rotational micromovement of the pedicle screw
BACKGROUND In regard to the fixation using a pedicle screw (PS) and rod system, the mechanism from the onset of the clear zone up to the development of loosening of the pedicle screw is not completely clarified. The purpose of this study is to determine the cause of the pedicle screw loosening by performing a biomechanical study with three-dimensional movie analysis. METHODS Ten PS fixation m...
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ژورنال
عنوان ژورنال: Clinical Biomechanics
سال: 2007
ISSN: 0268-0033
DOI: 10.1016/j.clinbiomech.2006.11.007