World Neurosurg
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We discuss the rationale of surgical treatment of group B basilar invagination by atlantoaxial facet joint stabilization and segmental arthrodesis. ⋯ The pathogenesis of basilar invagination in group B is related to atlantoaxial instability. The clinical outcome suggests that the surgical treatment in these cases should be directed toward atlantoaxial stabilization and aimed at segmental arthrodesis. Inclusion of the occipital bone in the fixation construct is not necessary. Foramen magnum decompression and procedures involving manipulation of Chiari malformation and syringomyelia are not necessary.
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Case Reports
Ultrasonography detects ulnar nerve dislocation despite normal electrophysiology and magnetic resonance imaging.
Dislocation of the ulnar nerve (UN) occurs in a subset of patients with ulnar neuropathy. Electrodiagnostic and magnetic resonance imaging (MRI) studies are performed to support the clinical diagnosis. We report the case of a patient with ulnar neuropathy with normal electrodiagnostic and MRI studies but with ultrasonography (US) showing UN dislocation, which prompted successful treatment by UN submuscular transposition. ⋯ Normal findings on electrodiagnostic or MRI studies should not immediately dissuade surgeons from operating on a symptomatic patient with a clinical examination supporting ulnar neuropathy and with US evidence of UN dislocation, because such a patient may experience postoperative symptom relief. Furthermore, the dynamic capability of US imaging complements data obtained from electrodiagnostic and MRI studies, especially when these tests are normal, and it should be considered by clinicians when evaluating patients with medial elbow pain or signs of ulnar neuropathy.
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To investigate the impact of hospital teaching status on the timing of intervention and inpatient morbidity and mortality after surgery for acute spinal cord injury (SCI). ⋯ In this nationwide study, patients with vertebral column fractures with SCI who were admitted to teaching hospitals were more likely to receive early intervention compared to patients admitted to nonteaching hospitals. Future studies into the long-term implications of admission to teaching hospitals versus nonteaching hospitals for patients with SCI are encouraged.
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The aim of the study was to investigate the diagnostic potential of interleukin 6 (IL-6) and other soluble biomarkers in serum and cerebrospinal fluid (CSF) for early diagnosis of cerebral vasospasm (cVSSAH) and external ventricular drain-associated ventriculitis (VCSAH) and to separate these conditions from aneurysmal subarachnoid hemorrhage (aSAH) without further complication (SAHw/o/c). ⋯ CSFIL-6 is increased after aSAH in patients with cVSSAH or VCSAH. Patients with a CSFIL-6 level higher than a C-OFF of 3100 pg/mL have an increased likelihood for VCSAH; patients with CSFIL-6 levels between 530 and 3100 pg/mL have an increased posttest probability for cVSSAH.
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Case Reports
Multilevel spinal stabilization as a treatment for Hirayama disease: Report of an experience with 5 cases.
To analyze the role of multisegmental spinal instability in the pathogenesis of Hirayama disease. ⋯ From the observations, it appears that atlantoaxial and subaxial spinal instability plays a major role in the pathogenesis of Hirayama disease.