Abstract:
:Malpositioning of cervical screws risks neurovascular injury. A cervical screw fixation system can provide proper rigidity, alignment correction, and high rates of fusion afforded by high pullout biomechanical strength. The objective is to assess the dimensions and axis of the C3-C7 cervical pedicles. A 1-mm slice thickness computed tomography (CT) scan of the cervical spine of 30 patients (15 males, 15 females) were analyzed and reconstructed in three-dimensions using Mimics(®) 10.01 software. We measured pedicle axis length (PAL), pedicle and lateral mass length (PL-LM), pedicle length (PL), outer pedicle width (OPW), and pedicle transverse angle (PTA) from the axial image and outer pedicle height (OPH) and pedicle sagittal angle (PSA) from the sagittal image. The OPH and OPW at all subaxial cervical spines were suitable for insertion of 3.5 mm cervical pedicle screws. PSA was directed cranially at C3 to C5 (13.84, 7.09, and 2.71) and directed caudally at C6 and C7 (-4.55, -6.94). PTA was greatest at C5 and smallest at C7. The respective difference between the left and right side for nearly all parameters was not statistically significant (except for C6 PL and C7 OPH). Females had a significantly smaller OPH and OPW than males at nearly all levels. The PTA was not significantly different between the sexes. Cervical pedicle screw fixation in the Thai population can be safely performed and guidelines for insertion at each vertebra documented. Appropriate preoperative planning is necessary to achieve safe and accurate placement of the screws.
journal_name
Neurol Med Chir (Tokyo)journal_title
Neurologia medico-chirurgicaauthors
Wasinpongwanich K,Paholpak P,Tuamsuk P,Sirichativapee W,Wisanuyotin T,Kosuwon W,Jeeravipoolvarn Pdoi
10.2176/nmc.oa.2013-0287subject
Has Abstractpub_date
2014-01-01 00:00:00pages
736-45issue
9eissn
0470-8105issn
1349-8029pii
DN/JST.JSTAGE/nmc/oa.2013-0287journal_volume
54pub_type
杂志文章abstract::Late onset cerebrospinal fluid (CSF) leakage, such as rhinorrhea or otorrhea, is a rare complication of closed head injury. We encountered two cases of delayed CSF leakage more than 10 years after head injury. In both cases, surgical treatments were performed using intradural approaches, and the dural defects were clo...
journal_title:Neurologia medico-chirurgica
pub_type: 杂志文章
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abstract::A 49-year-old female presented with a rare meningioma in the petrous bone. High resolution computed tomography and magnetic resonance imaging demonstrated that the tumor had developed in the jugular foramen and extended into the infralabyrinthine area of the petrous bone and intracranially into the cerebellopontine an...
journal_title:Neurologia medico-chirurgica
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abstract::A 58-year-old male suffered a massive intratumoral hemorrhage after placement of a ventriculoperitoneal shunt before treatment for pineocytoma. At admission, he complained of headache, urinary incontinence, gait disturbance, and recent memory disturbance. His neurological examination revealed impaired memory and papil...
journal_title:Neurologia medico-chirurgica
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abstract::Laser-Doppler (LD) flowmetry was used to measure tissue perfusion non-invasively and continuously during neurosurgical operations using an LD scanner. Scanning was usually completed in 20 seconds. Measurements were processed in software to provide a color-coded image of the tissue perfusion. Moreover, the measurement ...
journal_title:Neurologia medico-chirurgica
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doi:10.2176/nmc.42.1
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journal_title:Neurologia medico-chirurgica
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journal_title:Neurologia medico-chirurgica
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journal_title:Neurologia medico-chirurgica
pub_type: 杂志文章
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journal_title:Neurologia medico-chirurgica
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journal_title:Neurologia medico-chirurgica
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journal_title:Neurologia medico-chirurgica
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journal_title:Neurologia medico-chirurgica
pub_type: 杂志文章
doi:10.2176/nmc.34.686
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journal_title:Neurologia medico-chirurgica
pub_type: 杂志文章
doi:10.2176/nmc.36.423
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journal_title:Neurologia medico-chirurgica
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journal_title:Neurologia medico-chirurgica
pub_type: 杂志文章
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更新日期:1996-02-01 00:00:00
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journal_title:Neurologia medico-chirurgica
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doi:10.2176/nmc.46.353
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journal_title:Neurologia medico-chirurgica
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journal_title:Neurologia medico-chirurgica
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journal_title:Neurologia medico-chirurgica
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journal_title:Neurologia medico-chirurgica
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journal_title:Neurologia medico-chirurgica
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journal_title:Neurologia medico-chirurgica
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journal_title:Neurologia medico-chirurgica
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doi:10.2176/nmc.43.304
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journal_title:Neurologia medico-chirurgica
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journal_title:Neurologia medico-chirurgica
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journal_title:Neurologia medico-chirurgica
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journal_title:Neurologia medico-chirurgica
pub_type: 杂志文章
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journal_title:Neurologia medico-chirurgica
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journal_title:Neurologia medico-chirurgica
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