World Neurosurg
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Review Comparative Study
Comparative analysis of surgical freedom and angle of attack of two minimal-access endoscopic transmaxillary approaches to the anterolateral skull base.
Surgical freedom and the angle of attack influence approach selection for open cranial base approaches, but these concepts have not been well studied in minimal-access endoscopic approaches. We therefore developed a methodology to study surgical freedom and angle of attack in two endoscopic transmaxillary transpterygoid approaches, the endonasal ipsilateral uninostril medial maxillotomy and the sublabial Caldwell-Luc anterior maxillotomy. ⋯ We have successfully developed a model for comparing endoscopic skull base approaches. Both the endonasal medial maxillotomy approach and Caldwell-Luc approach provided endoscopic access to each target. However, the sublabial Caldwell-Luc approach offered greater surgical freedom and a more head-on approach than the endonasal medial maxillotomy. These differences in surgical freedom and angles of attack may be useful to consider when planning minimal-access approaches.
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Review Comparative Study
Autologous and acrylic cranioplasty: a review of 10 years and 258 cases.
Cranioplasty is a well-accepted neurosurgical procedure that has application to a wide range of pathologies. Given the varied need for both autologous and synthetic cranial grafts, it is important to establish rates of procedural complication. ⋯ Cranioplasty carries a significant risk of infection and postoperative hematoma. In this large series comparing autologous and acrylic flaps, male patients, tumor patients, and those undergoing surgery at the county hospital were at increased risk of postoperative infection. Among traumatic brain injury cases, complex injuries and cases with surgical involvement of the frontal sinus may portend a higher risk.
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Quantifying the clinical neurological impairment of individuals with traumatic spinal cord injury (SCI) is of great importance in managing the population. The current gold standard is the International Standards for Neurological Classification of SCI (ISNCSCI). Administered in isolation, this measure is not sensitive or specific enough to quantify impairment for the whole SCI population with the detail required for clinical trials and interventional studies. ⋯ The use of impairment measures alone will not provide clinicians with enough information regarding ability. Thus, the use of functional outcomes, such as the Spinal Cord Independence Measure, Functional Independence Measure, and other functional tests in addition to the neurological impairment measures, such as the ISNCSCI and the electrophysiologic measures, are required for adequate characterization of the deficits and abilities in the traumatic SCI population.
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The introduction of extended endoscopic endonasal approaches for the management of midline skull base lesions has brought again the focus on the problem of postoperative cerebrospinal fluid (CSF) leak management. Notwithstanding the improvements in reconstruction techniques that have reduced the rate of postoperative CSF leakage, no technique has proven to be thoroughly effective. ⋯ An endoscope-guided sealant technique with fibrin glue used while the patient is awake has proven, in our experience, to be effective in reducing the rate of reoperations in the management of postoperative CSF leaking after endoscopic endonasal approaches for the treatment of intradural skull base lesions. This technique, which needs larger case series to be validated, could be considered in the spectrum of possibilities to manage selected postoperative CSF leakages.