Neurosurgery
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Anatomic features of neuromas have been explored in imaging studies. However, there has been limited research into these features using resected, ex vivo human neuroma specimens. The aim of this study was to investigate the influence that time may have on neuroma growth and size, and the clinical significance of these parameters. ⋯ This study suggests that neuromas seem to continue to grow over time and that smaller nerves may form relatively larger neuromas. In addition, sensory nerves develop relatively larger neuromas compared with mixed nerves. Neuroma size does not appear to correlate with pain severity. These findings may stimulate future research efforts and contribute to a better understanding of symptomatic neuroma development.
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This study assessed feasibility, radiologic parameters, and clinical outcomes in patients who underwent the prone transpsoas (PTP) approach for lateral lumbar interbody fusion. ⋯ In this single-institution patient series, the PTP approach was effective and safe for lateral lumbar fusion, with minimal complications and improved lumbar lordosis and patient-reported pain outcomes.
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Intraventricular drug delivery enables the delivery of therapeutics to the central nervous system, while minimizing peripheral drug exposure and toxicity. However, currently used delivery devices cannot be controlled externally to adjust their output during delivery. Here, the authors investigated the performance of a conceptually novel device designed to metronomically deliver a drug to the cerebrospinal fluid in a manner that can be adjusted wirelessly from an external controller. ⋯ This implantable pump system enables external control of drug output, so that the resulting intraventricular drug concentrations can continuously be maintained within the therapeutic range.