Publications by authors named "Grant O Schmidt"

Article Synopsis
  • - The study aimed to explore the relationship between Hounsfield units (HU) from CT scans and bone mineral density (BMD) assessed through DEXA scans in children and adolescents, as previous research primarily focused on adults.
  • - Researchers analyzed patients under 18 years who had both a lumbar spine CT scan and a DEXA scan within six months, finding a moderate correlation between DEXA Z-scores and HU values.
  • - Results showed that children with a DEXA Z-score of ≤-2.0 had significantly lower HU values compared to healthy peers, indicating that HU measurements on CT scans might effectively estimate BMD in the pediatric population.
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Article Synopsis
  • - The study examined intraoperative screw malposition during robot-assisted cortical bone trajectory (RA-CBT) surgeries, focusing on two types of malposition: skive and shift, which occur due to instrument deflection or registration changes, respectively.
  • - A total of 1344 screws were placed in 256 patients, with a malposition rate of 2.4%, linked to higher body mass index (BMI) and specific vertebral characteristics at the insertion points.
  • - No screw revisions were necessary post-surgery, highlighting that while malpositions occurred, they did not require further intervention, with factors such as obesity and specific bone properties influencing the likelihood of these errors.
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  • Circumferential lumbar fusions (cLFs) are becoming more popular due to new minimally invasive techniques, leading to a study comparing staged versus single-anesthetic approaches.
  • The study used a matched sample of patients who had cLFs for lumbar degenerative disease to evaluate various complications within different time frames post-surgery.
  • Results indicated that while the single-anesthetic surgeries took longer overall, they had more intraoperative complications, but there were no significant differences in hospital stays or long-term outcomes between the two methods.
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Article Synopsis
  • This study utilized a longitudinal observational cohort design to assess the effectiveness of Quantitative Romberg measurements in evaluating balance outcomes before and after surgery in patients with cervical spondylotic myelopathy (CSM).
  • It involved 27 patients who underwent pre- and postoperative testing to measure center of pressure (COP) motion while standing with their eyes open and closed, revealing significant improvements in balance metrics post-surgery.
  • The results indicate that Quantitative Romberg testing offers an objective way to measure balance recovery in CSM patients, potentially guiding future surgical decisions and patient management.
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Study Design: Propensity-matched cohort.

Objective: The aim of this study was to determine if opioid-sparing anesthesia (OSA) reduces in-hospital and 1-year postoperative opioid consumption.

Summary Of Background Data: The recent opioid crisis highlights the need to reduce opioid exposure.

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Background: Patients with a pseudarthrosis after anterior cervical discectomy and fusion (ACDF) may have concurrent adjacent segment disease (ASD). Although prior studies have shown posterior cervical decompression and fusion (PCDF) is effective in repairing pseudarthrosis, improvement in patient reported outcomes (PROs) has been marginal. The aim of this study is to evaluate the effectiveness of PCDF in achieving symptom relief in patients with pseudarthrosis after ACDF and whether that is altered by the additional treatment of ASD.

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Study Design: Retrospective chart review.

Objective: To provide reference values for Hounsfield unit (HU) measured on computed tomography (CT) scans of children and adolescents.

Summary Of Background Data: Spine surgeons increasingly use HU on spine CT as a measure of bone mineral density (BMD).

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