Differences in fixation strength among constructs of atlantoaxial fixation
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چکیده
منابع مشابه
RESPONSE OF METACARPAL FRACTURE FIXATION CONSTRUCTS TO PHYSIOLOGICAL LOADINGS
This study compares the functional capabilities of different metacarpal fixation constructs under physiological loadings in an attempt to identify the optimal construct rather than the strongest one. One hundred and twenty-six preserved human metacarpals were mechanically tested after oblique osteotomies and internal fixation. Maximum load to failure, average structural rigidity, and energ...
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Three-dimensional CT was used to examine the atlantoaxialjoint ofa nine-year-old girl who presented with fixed rotation of the head 3.5 months after an apparently spontaneous acute torticollis. The method provided clear, anatomical images to show the site, extent and direction of the type-I rotatory fixation (Fielding and Hawkins 1977). The 3-D reconstructions helped to guide manipulation which...
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Over the past century, steady advances have been made in fixating an unstable atlantoaxial complex. Current options for fixation of the atlantoaxial complex include posterior clamps, posterior wiring techniques, C1-C2 transarticular screw fixation, posterior C1 lateral mass screw with C2 pars or pedicle screw fixation, and anterior transoral C1 lateral mass to C2 vertebral body fixation.
متن کاملAtlantoaxial rotatory fixation--a cause of torticollis.
BACKGROUND A rare, but important cause of torticollis in children is atlantoaxial rotatory fixation. If the patient remains undiagnosed for more than three months, surgery is generally the only therapeutic alternative. In this article we present our experiences of surgical treatment of late-diagnosed atlantoaxial rotatory fixation in children. MATERIAL AND METHOD This article is based on a re...
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In cases of chronic irreducible and recurrent unstable atlantoaxial rotatory fixation (AARF), closed reduction and its maintenance are often unsuccessful, requiring surgical treatment. The purpose of the present report is to describe a rare case of pediatric AARF that required multiple treatments. A 6-year-old boy was diagnosed as having type 2 AARF. After conservative treatment, the patient wa...
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ژورنال
عنوان ژورنال: Journal of Neurosurgery: Spine
سال: 2019
ISSN: 1547-5654
DOI: 10.3171/2018.6.spine171390