Spondylolytic fractures.
نویسندگان
چکیده
A method is described whereby fractures of the neural arch similar to those in spondylolysis are produced experimentally. The forces, bending moments and displacements required to initiate the fractures are given; The mechanical aspects in the aetiology of spondylolysis are explained by a simplified two-dimensional force analysis.
منابع مشابه
Unilateral Pedicle Fracture Accompanying Spondylolytic Spondylolisthesis
Unilateral pedicle stress fracture accompanying spondylolytic spondylolisthesis is rare even in the elderly. Most are associated with major trauma, previous spine surgery, or stress-related activity. Here, the authors describe an unique case of unilateral pedicle fracture associated with spondylolytic spondylolisthesis at the L5 level, which was successfully treated by posterior lumbar interbod...
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Modern day fast bowling places immense strain on the spine. Stress fractures of the lumbar region are common. If a period of conservative treatment fails to return a fast bowler to professional sport, surgery is considered. Good results have been reported using a direct screw repair of the spondylolytic defect. A case is presented of a failed surgical intervention with an alternative technique.
متن کاملA review of the pathomechanism of forward slippage in pediatric spondylolysis: the Tokushima theory of growth plate slippage.
Spondylolysis is a stress fracture of the pars interarticularis, which in some cases progresses to spondylolisthesis (forward slippage of the vertebral body). This slip progression is prevalent in children and occurs very rarely after spinal maturation. The pathomechanism and predilection for children remains controversial despite considerable clinical and basic research into the disorder over ...
متن کاملAnatomic Variability of 120 L5 Spondylolytic Defects
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STUDY DESIGN A retrospective study. PURPOSE To comparatively investigated the rate of the adjacent segment degeneration and the clinical outcomes in patients with spondylolytic spondylolisthesis, spinal stenosis or degenerative spondylolisthesis. OVERVIEW OF LITERATURE There have been few studies reported on the adjacent segment degeneration following posterior lumbar interbody fusion(PLIF)...
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ورودعنوان ژورنال:
- The Journal of bone and joint surgery. British volume
دوره 58-B 4 شماره
صفحات -
تاریخ انتشار 1976