شکست وسایل تثبیت ستون فقرات

Authors

  • Karami, M
  • Sadat, MM
Abstract:

This was a retrospective review of a consecutive series of patients with spinal disease in year 2000, who underwent posterior fusion and instrumentation with Harrington distraction and Cotrel-Dobousset system to evaluate causes of hardware failure. Many cases of clinical failure has been observed in spinal instrumentation used in spinal disorder like spondylolisthesis, fractures, deformities, … . Thirty six cases that were operated because of spinal disorders like spondylolisthesis, fractures, deformities, …, were included in this study. Seventeen of this cases had breakage of device. Factors like age at surgery, type of instrumentation, angles before and after surgery and …, were compared in two groups of patients. The most common instrument breakage was pedicle screw breakage. Pseudoarthrosis was the main factor that was presented in failure group (P value<0.001). Other important causes were, age of patient at surgery (P value=0.04), pedicle screw placement off center in the sagittal or coronal plane of the pedicle (P value=0.04). Instrumentation loads increased significantly as a direct result of variations in surgical technique that produce pseudoarthrosis, pedicle screw placement off center in the sagittal plane of the pedicle, or using less than 6 mm diameter screw. This factor can be prevented with meticulous surgical technique and using proper devices.

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رابطة عادات و وسایل استراحتی با ناهنجاری های وضعیتی ستون فقرات دختران جوان (مطالعة موردی: دانشجویان دختر دانشگاه های شیراز)

هدف از تحقیق، بررسی ارتباط عادات استراحتی با ناهنجاری های ستون فقرات دانشجویان دختر دانشگاه های شیراز بود. به این منظور 402 نفر به صورت تصادفی از بین 7800 نفر از دانشجویان ساکن خوابگاه دانشگاه های دولتی شیراز (دانشگاه شیراز، علوم پزشکی و دانشگاه صنعتی) انتخاب شدند. ابتدا پرسشنامة «بررسی نحوة استراحت و وضعیت ستون فقرات»، که اعتبار آن 83 درصد برآورد شده است، در بین آزمودنی ها توزیع شد، سپس وضعیت ...

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Journal title

volume 59  issue None

pages  37- 43

publication date 2001-11

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