نتایج جستجو برای: hook instrumentation
تعداد نتایج: 24939 فیلتر نتایج به سال:
BACKGROUND There have been reports of serious complications associated with pedicle screw fixation, including nerve root injuries caused by accidental screw insertion. We have developed a new system of lumbar spinal instrumentation that we call Tadpole system. The purposes of this report were to show the results of a biomechanical study and the short-term outcome of a clinical study, as well as...
چکیده در این پایان نامه به بررسی اعمال کنترلر بر سیستم تعلیق خودرو پرداخته می شود. در جهت مقابله با اغتشاشات و عدم قطعیت ها،از روش کنترل مد لغزشی به عنوان یک روش مقاوم به عنوان روش کنترلی اعمال شده بر سیستم استفاده شده است. این کنترلر بوسیله مدلهای متداول یک چهارم و یک دوم خودرو،از ترکیب خطی ریاضیاتی یک مدل ایده آل sky-hook و یک مدل ایده آل ground-hook بعنوان مدل مرجع استفاده میکند،که این مدل ...
BACKGROUND Failure of pedicle screw fixation is often seen in patients with severe osteoporosis. We developed new lumbar spinal instrumentation (Tadpole system) for elderly patients who have osteoporotic bone and poor general health status. The objective of this study was to document the long-term clinical outcomes after Tadpole system fixation, the rate of spinal fusion, the incidence of adjac...
With the development of the Harrington rod (Harrington, 1962) a long-segment rod and hook instrumentation was available for the first time, which became the worldwide standard procedure for many years in the surgical treatment of adolescent idiopathic scoliosis. According to a retrospective meta-analysis, Harrington rods were used in more than 85% of such cases between 1958 and 1993 (Haher et a...
Group 2 &3 Posterior Instrumentation (PI): 91 patients, average age 14.2 yrs. The posterior group was divided into all Hook/ hybrid (Group 2, n=45) and all Pedicle screw construct (Group 3, n=46), for evaluation of radiological outcomes. The groups were compared for various surgical and radiological outcomes at immediate post-op, 2 and 5 year intervals. Average follow-up 6.6 years (5-12 yrs). R...
Costello syndrome is characterised by dwarfism, unique cutaneous lesions, a distinct facial gestalt, and mental retardation. There have been no detailed reports of severe spinal deformities requiring surgical treatment as a complication of Costello syndrome. We report a case of a 10-year-old girl with progressive scoliosis associated with Costello syndrome. She underwent anterior release and po...
Background: Nasal foreign body (NFB) is a common presentation to the emergency department (ED). It is often a dilemma for the treating physician to choose the best method as removal of NFB can be challenging, frustrating and distressing for the physician, the patient, and the patient’s parents. Method: We have listed the 20 possible methods one could use to remove NFB in an ED setting. Results ...
OBJECTIVE Atlantoaxial stability can be achieved by laminar hook systems via posterior approach. This technique is much more safer than using screws. We presented our experience with the C1-C2 claw procedure. METHODS AND MATERIAL Seven patients with atlantoaxial instability were operated by using C1 and C2 hooks, rods and transverse connector at Neurosurgery Clinic of Istanbul University Cerr...
Background:It is possible that some hamate hook fractures are not diagnosed or treated, thereby affecting the study of their natural history. Study of the prevalence of incidental hamate hook fractures, nonunions, and other abnormalities on computed tomography (CT) ordered for another reason could document a subset of undiagnosed and untreated hamate hook fractures which might change our under...
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