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Annabelle has a robust research portfolio (20+ publications) with focuses in sports-related concussion, innovations in spine surgery, and ultra-high-field MRI.
Featured Publications
Featured Publications
Shaffer, A., Anderson, A. T., Goldberg, Z., Tarr, A., Flannell, J., Huesmann, G., Wszalek, T. M., Zimmerman, J., & Arnold, P. M. (2024). SCAT5 baseline values, test-retest reliability, and reliable change metrics in high school athletes. Neurosurgical Focus, 57(1), E5. https://doi.org/10.3171/2024.4.FOCUS24112
Shaffer, A., Yu, A. K., Yu, A., Huesmann, G., Iyer, R., & Arnold, P. M. (2024). One- and 2-year outcomes of lumbar facet arthroplasty versus spinal fusion in young (<65 years) and old (≥65 years) patients for the treatment of degenerative spondylolisthesis and stenosis. NASSJ Open. https://doi.org/10.1016/j.xnsj.2024.100329
All Publications
Shaffer A, Kemprecos H, Moran Z, Anderson, AT, et al. Injury Characteristics and Risk Factors of Sport-Related Concussion Among High School Athletes in School-Sponsored Sports. In press with Neurosurgery.
Shaffer A, Anderson AT, Goldberg Z, et al. SCAT5 Baseline Values, Test-Retest Reliability, and Reliable Change Metrics in High-School Athletes. Nueruosurgical Focus. July 1 2024; doi: 10.3171/2024.4.FOCUS24112
Shaffer A, Yu AK, Yu A, et al. Long-term Outcomes of Lumbar Facet Arthroplasty versus Spinal Fusion in Young (<65 years) and Old (³65 years) Patients for the Treatment of Degenerative Spondylolisthesis and Stenosis. NASSJ. May 16 2024; doi:10.1016/j.xnsj.2024.100329
Lee M, Shaffer A, Alfouzan N, et al. Successful dietary changes correlate with weight loss outcomes in a new dietary weight loss program. In press with Obesity Science & Practice. doi: 10.1002/osp4.764
Naik A, Bah M, Govande M, Palsgaard P, Dharnipragada R, Shaffer A, et al. Optimal Frequency in rTMS for the Management of Chronic Pain: A Network Meta-Analysis of Randomized Controlled Trials. World Neurosurg. Jan 5 2024;doi:10.1016/j.wneu.2024.01.010
Johnson R, Shaffer A, Tang A, Tsai A, et al. Posterior-only two-level vertebrectomy and fusion in a medically complex patient with a lumbar metastasis. In production with JNS: Case Lessons.
Shaffer A, Pozin M, Nasr S, et al. Refractory Seizures Secondary to Radiation-Induced Cortical Dysplasia. JNS Case Lessons. doi: 10.3171/CASE23374
Covell MM, Naik A, Shaffer A, et al. Social Determinants of Health Impact Spinal Cord Injury Outcomes in Low- and Middle-Income Countries: A Meta-Epidemiological Study. Neurosurgery. 9900:10.1227/neu.0000000000002765. doi:10.1227/neu.0000000000002765
Smith A, Lauinger A, Arnush M, Shaffer A, et al. The Neurosurgeon Workforce: A Geographical Gender-Focused Analysis of the Trends in Representation of Neurosurgeons and Choices in Training Over 70 Years. Neurosurgical Focus. 2023;55(5):E9-. doi:10.3171/2023.8.FOCUS23473
Shaffer A, Nigh N, Weisbaum D, et al. Cardiothoracic and Vascular Surgery Implant Compatibility With Ultrahigh Field Magnetic Resonance Imaging (4.7 Tesla and 7 Tesla). Am J Cardiol. Jun 29 2023;201:239-246. doi:10.1016/j.amjcard.2023.05.062
Smith EJ, Naik A, Shaffer A, et al. Differentiating radiation necrosis from tumor recurrence: a systematic review and diagnostic meta-analysis comparing imaging modalities. J Neurooncol. Feb 28 2023;doi:10.1007/s11060-023-04262-1
Naik A, MacInnis BR, Shaffer A, et al. Trends in Technology for Pedicle Screw Placement: A Temporal Meta-Analysis. Spine (Phila Pa 1976). Feb 16 2023;doi:10.1097/BRS.0000000000004604
Shaffer A, Naik A, Bederson M, Arnold PM, Hassaneen W. Efficacy of Deep Brain Stimulation for the Treatment of Anorexia Nervosa: a Systematic Review and Network Meta-Analysis of Patient-Level Data. Neurosurg Focus. doi:10.3171/2022.11.FOCUS22616
Shaffer A, Johnson R, Guglielmi G, et al. Disseminated blastomycosis with an intracranial fungoma in an immunocompetent patient: illustrative case. Journal of Neurosurgery: Case Lessons. 16 Jan. 2023 2023;5(3):CASE22406. doi:10.3171/case22406
Shaffer A, Weisbaum D, Naik A, Anderson A, Wszalek T, Cohen M, Sutton B, Webb A, Damon A, Arnold PM. Neurosurgical Implant Safety in 7 T MRI: A Scoping Review. J Magn Reson Imaging. Sep 29 2022. doi:10.1002/jmri.28449.
Shaffer A, Naik A, Macinnis B, Chen M, Ivankovic A, Paisan G, Garst JR, Hassaneen W, Arnold PM. Perioperative prophylaxis for surgical site infections in pediatric spinal surgery: a systematic review and network meta-analysis. J Neurosurg Pediatr. Oct 28 2022:1-9. doi:10.3171/2022.9.PEDS22316
Lee MH, Applegate CC, Shaffer AL, Emamaddin A, Erdman JW, Jr., Nakamura MT. A feasibility study to test a novel approach to dietary weight loss with a focus on assisting informed decision making in food selection. PLoS One. 2022;17(5):e0267876. doi:10.1371/journal.pone.0267876.
Shaffer A, Kwok SS, Naik A, et al. Ultra-High-Field MRI in the Diagnosis and Management of Gliomas: A Systematic Review. Front Neurol. 2022;13:857825. doi:10.3389/fneur.2022.857825.
Naik A, Smith AD, Shaffer A, et al. Evaluating robotic pedicle screw placement against conventional modalities: a systematic review and network meta-analysis. Neurosurg Focus. Jan 2022;52(1):E10. doi:10.3171/2021.10.FOCUS21509.
Follmann R, Shaffer A, Mobille Z, Rutherford G, Rosa E. Synchronous tonic-to-bursting transitions in a neuronal hub motif. Chaos. Oct 2018;28(10):106315. doi:10.1063/1.5039880.
Shaffer A, Follmann R, Harris AL, Postnova S, Braun H, Rosa E. A critical firing rate associated with tonic-to-bursting transitions in synchronized gap-junction coupled neurons. The European Physical Journal Special Topics. 2017/06/01 2017;226(9):1939-1951. doi:10.1140/epjst/e2017-70024-6.
Shaffer A, Harris AL, Follmann R, Rosa E. Bifurcation transitions in gap-junction-coupled neurons. Phys Rev E. Oct 2016;94(4-1):042301. doi:10.1103/PhysRevE.94.042301.
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