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Office
1611 W Harrison St
# 400
Chicago, IL 60612Phone+1 312-243-4244Fax+1 312-942-1517- Is this information wrong?
Education & Training
- University of Pennsylvania Health SystemResidency, Orthopaedic Surgery, 1988 - 1989
- Sidney Kimmel Medical College at Thomas Jefferson University/TJUHResidency, Orthopaedic Surgery, 1987 - 1988
- University of ToledoResidency, Orthopaedic Surgery, 1983 - 1987
- University of ToledoInternship, Transitional Year, 1982 - 1983
- The University of Toledo College of MedicineClass of 1982
Certifications & Licensure
- IL State Medical License 1997 - 2026
- WI State Medical License 1989 - 2007
- PA State Medical License 1987 - 1990
- American Board of Orthopaedic Surgery Orthopaedic Surgery
Awards, Honors, & Recognition
- Chicago Magazine: Top Doctors Castle Connolly, 2014
- America's Top Doctors Castle Connolly, 2009-2014
- CMS Meaningful Use Stage 1 Certification NextGen Ambulatory EHR, NextGen Healthcare, 2012-2013
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Clinical Trials
- A Prospective Study of Instrumented, Posterolateral Lumbar Fusions (PLF) With OsteoAMP® Start of enrollment: 2015 Nov 19
Publications & Presentations
PubMed
- Discovery of circulating blood biomarkers in patients with and without Modic changes of the lumbar spine: a preliminary analysis.Toro, S. J., Khaled Aboushaala, Ana V Chee, Sheila J Toro, Rajko Vucicevic, Catherine Yuh, Jake Dourdourekas, Ishani K Patel, Alejandro Espinoza-Orias, Chundo Oh, Lena...> ;European Spine Journal. 2024 Mar 7
- 1 citationsThe efficacy and safety of oral antibiotic treatment in patients with chronic low back pain and Modic changes: A systematic review and meta-analysis.Wong, A., Mallow, G., Pinto, S., Aboushaala, K., Udby, P., Samartzis, D., Hornung, A., Rudisill, S., An, H.> ;JOR Spine. 2024 Mar 1
- How Does Resorption Differ Amongst Single- and Multi-Level Lumbar Disc Herniations? A Prospective Multi-Imaging and Clinical Phenotype Study.Rudisill, S., Hornung, A., Alexander L Hornung, Samuel S Rudisill, J Nicolas Barajas, Garrett Harada, Ashlyn A Fitch, Skylar F Leonard, Ashley C Roberts, Howard S An, ...> ;Spine. 2024 Feb 12
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Journal Articles
- Multi- Versus Single-Level Anterior Cervical Discectomy and Fusion: Comparing Sagittal Alignment, Early Adjacent Segment Degeneration, and Clinical OutcomesHoward S An, Edward J Goldberg, Bryce A Basques, Kamran Movassaghi, Arya Varthi, European spine journal
Press Mentions
- Etiology-Based Classification of Adjacent Segment Disease Following Lumbar Spine FusionJuly 1st, 2020
- SpinalCyte Announces Publication Supporting the Therapeutic Effects of Fibroblast Cell Therapy in Disc Degeneration and Inflammation in the Spine JournalOctober 11th, 2018
- 10 Spine Surgeon Leaders to KnowSeptember 28th, 2018
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Grant Support
- Relationship Between DISC And Facet Degeneration And In Vivo Lumbar KinematicsNational Institute Of Arthritis And Musculoskeletal And Skin Diseases2006–2010
- Biological Treatment Strategies For Growth Factors And Cytokines InhibitorsNational Institute Of Arthritis And Musculoskeletal And Skin Diseases2006–2010
- Regeneration Of The Intervertebral DISC MatrixNational Institute Of Arthritis And Musculoskeletal And Skin Diseases2001–2002
Hospital Affiliations
- Rush University Medical CenterChicago, Illinois
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