Abstracts, Presentations, and Media Appearances

Dr. Antonacci is often requested to present at conferences around the world on his latest groundbreaking research and studies, including both as the primary presenter and working with fellow experts in the field.


Dr. Antonacci continues to pursue new avenues for treating and preventing spinal disorders, and is frequently published for his groundbreaking findings in the leading medical journals and other publications. Review Publications


Abstracts and Presentations

  1. Laury A. Cuddihy, MD, M. Darryl Antonacci, MD; Far-Lateral Interbody Fusion (FLIF): A less Invasive Muscle Sparing Technique for Revision Surgery and Junctional Failure. Converting a Revision into a Primary Operation, ePoster, IMAST 18th Annual Meeting & Course on Advanced Spine Techniques, Copenhagen, Denmark, July 13-16, 2011.
  2. M. Darryl Antonacci, MD; Randal R. Betz, MD; Patrick J. Cahill, MD; Steven Hwang, MD; Amer Samdani, MD; Cervical sagittal plane decompensation after pediatric idiopathic scoliosis surgery: an effect imparted by post-operative thoracic hypokyphosis, Journal of Neurosurgery; in press.
  3. Patrick J. Cahill, MD; Ashish Ranade, MD; Amer Samdani, MD; Jahangir Asghar, MD: M. Darryl Antonacci, MD; David H. Clements, MD; Randal R. Betz, MD, What Does a Scoliometer Really Measure?,ePoster, 44th Annual Meeting & Course of Scoliosis Research Society, San Antonio, TX, September 23-26, 2009.
  4. Jahangir Asghar, MD; Patrick J. Cahill, MD; Amer Samdani, MD; M. Darryl Antonacci, MD; David H. Clements, MD; Randal R. Betz, MD, The Effect of Operative Position during Posterior Spinal Fusion for AIS: Does it Influence Sagittal and Axial Alignment of the Thoracic Spine?, ePoster, 44th Annual Meeting & Course of Scoliosis Research Society, San Antonio, TX, September 23-26, 2009.
  5. Patrick J.Cahill, MD; Jahangir Asghar, MD; Jason R. Smith, PA-C; Sean C. Marvil, BS; Mark E. Tantorski, DO; Amer Samdani, MD; David H. Clements, MD; M. Darryl Antonacci, MD; Randal R. Betz, MD, The Rate of Change in Spinopelvic Parameters Following Spondylolisthesis Surgery, ePoster, Louis A. Goldstein Award Nominee For Best Clinical Poster, 44th Annual Meeting & Course of Scoliosis Research Society, San Antonio, TX, September 23-26, 2009.
  6. Patrick J. Cahill, MD; Sean C. Marvil, BS; Corey Schutt, MD; Jocelyn R. Idema, DO; David H. Clements, MD; M. Darryl Antonacci, MD; Jahangir Asghar, MD; Amer F. Samdani, MD; Randal R. Betz, MD, Auto-Fusion of the Skeletally Immature Spine After Growing Rod Instrumentation, Paper Presentation, 44th Annual Meeting & Course of Scoliosis Research Society, San Antonio, TX, September 23-26, 2009.
  7. Darryl Antonacci, MD; Jason Nydick, DO; Thomas Klein; Amer Samdani, MD; Jahangir Asghar, MD, Randal Betz, MD, Growing Rod Instrumentation for Cervical Kyphosis in a Pediatric Quadriplegic Patient: A Case Study, 2nd International Congress on Early Onset Scoliosis & Growing Spine (ICEOS), Montreal, Quebec, November 7-8, 2008.
  8. Antonacci, M.D., Cahill, P.J., Nydick, J., Asghar, J.G., Tantorski, M., Clements, D.H., Betz, R.R., Samdani, A.F., Harms Study Group, Cervical Sagittal Plane Decompensation After Pediatric AIS Surgery, Paper Presentation. 23rd Annual Meeting of North American Spine Society, Toronto, Canada, 2008.
  9. Asghar, J.G., Samdani, A.F., Sciubba, D.M., Clements, D.H., Cahill, P.J., Antonacci, M.D., Betz, R.R., Harms Study Group, Surgical Trunk Rotation Correction in Patients with Moderate AIS (< 75 deg.): An All Pedicle Screw Construct with Derotation is Better than Thoracoplasty, Paper Presentation, 23rd Annual Meeting of North American Spine Society, Toronto, Canada, 2008.
  10. Asghar, J.G., Sciubba, D.M., Samdani, A.F., Cahill, P.J., Clements, D.H., Antonacci, M.D., Betz, R.R., Harms Study Group, The Majority of Initial Coronal Imbalance Following Fusion Surgery for AIS Improves Within Six Months, Paper Presentation, Scoliosis Research Society 43rd Annual Meeting, Salt Lake City, UT, September 2008.
  11. Antonacci, M.D., Cahill, P.J., Nydick, J., Asghar, J.G., Tantorski, M., Clements, D.H., Betz, R.R., Samdani, A.F., Harms Study Group, Cervical Sagittal Plane Decompensation After Pediatric AIS Surgery, ePoster, Scoliosis Research Society 43rd Annual Meeting, Salt Lake City, UT, September 2008.
  12. Asghar, J.G., Sciubba, D.M., McCarthy, J.J., Samdani, A.F., Cahill, P.J., Clements, D.H., Antonacci, M.D., Betz, R.R., Harms Study Group, Are Triggered EMG Thresholds Reliable for Assessing Thoracic Pedicle Screw Breach in the Cerebral Palsy Population?, Poster. Scoliosis Research Society 43rd Annual Meeting, Salt Lake City, UT, September 2008.
  13. Asghar, J.G., Ranade, A., Cahill, P.J., Samdani, A.F., Clements, D.H., Antonacci, M.D., Betz, R.R., Harms Study Group, The Interobserver and Intraobserver Reliability of Assessing Thoracic Pedicle Screw Position Based on Computed Tomography, ePoster, The 14th International Meeting on Advanced Spine Techniques, Hong Kong, China, 2008.
  14. Asghar, J.G., Sciubba, D.M., McCarthy, J.J., Samdani, A.F., Cahill, P.J., Clements, D.H., Antonacci, M.D., Betz, R.R., Harms Study Group, Are Triggered EMG Thresholds Reliable for Assessing Thoracic Pedicle Screw Breach in the Cerebral Palsy Population?, ePoster, The 14th International Meeting on Advanced Spine Techniques, Hong Kong, China, 2008.
  15. Asghar, J.G., Sciubba, D.M., Samdani, A.F., Cahill, P.J., Clements, D.H., Antonacci, M.D., Betz, R.R., Harms Study Group, The Majority of Initial Coronal Imbalance Following Fusion Surgery for AIS Improves Within Six Months, ePoster, The 14th International Meeting on Advanced Spine Techniques, Hong Kong, China, 2008.
  16. Asghar, J.G., Samdani, A.F., Sciubba, D.M., Clements, D.H., Cahill, P.J., Antonacci, M.D., Betz, R.R., Harms Study Group, Surgical Trunk Rotation Correction in Patients with Moderate AIS (< 75 deg.): An All Pedicle Screw Construct with Derotation is Better than Thoracoplasty, ePoster, The 14th International Meeting on Advanced Spine Techniques, Hong Kong, China, 2008.
  17. Antonacci, M.D., Cahill, P.J., Nydick, J., Asghar, J.G., Tantorski, M., Clements, D.H., Betz, R.R., Samdani, A.F., Harms Study Group, Cervical Sagittal Plane Decompensation After Pediatric AIS Surgery, Paper Presentation, The 14th International Meeting on Advanced Spine Techniques, Hong Kong, China, June 2008.
  18. Antonacci, M.D. Repair Strategies for Spinal Cord Injury, Lecture. European BIOSPINE IICongress, Leipzig, Germany, September 2007.
  19. Antonacci, M.D. Strategies for Spinal Cord Injury Recovery. Invited Guest Lecturer, Pitie-Salpetriere Hospital, Paris, France, November 13, 2006.
  20. Antonacci, M.D. Shriners Hospital for Children – Depuy Spine Tutorial, Advanced Spine Techniques, Participant and invited faculty, October 12, 2006.
  21. Antonacci, M.D. Strategies of Repair in SCI. Invited Guest Lecturer, AO Spine Europe, Majorca, Spain, September 2006.
  22. Antonacci, M.D. Spinal Cord Injury Repair. Invited Guest Lecturer, European Cervical Spine Research Society Annual Meeting, Berlin, Germany, May 2006.
  23. Nothias, M., Antonacci, M.D. et al. Repetitive Passive cycling exercise in combination with serotonergic agonist therapy Improves motor recovery following experimental spinal cord injury, Cervical Spine Research Society, San Diego, CA, December 2005.
  24. Antonacci, M.D. Current Strategies for Spinal Cord Repair, Lecturer, Cervical Spine Research Society, Instructional Courses, San Diego, CA, December 2005.
  25. Hiroyuki Yoshihara, Jed S. Shumsky, Darryl Antonacci, Marion Murray and Itzhak Fischer. Combination therapy of rat bone marrow stromal cells and training, Scoliosis Research Society, Miami, FL, October 2005.
  26. Antonacci, M.D., Invited Lecturer. Pediatric Spinal Cord Injury Annual Conference. Shriners Hospital For Children, October 10, 2005.
  27. Antonacci, M.D. Rehabilitation after Spinal Cord Injuries. Spine Deformity Summit, Palm Beach, FL, June 2005.
  28. Mehta, S., Betz, R.R., Mulcahey, M.J., MacDonald, C., Vogel, L, Anderson, C., D’Andrea, L., and Antonacci, M.D., The Effect of Bracing on Paralytic Scoliosis Secondary to Spinal Cord Injury. Scoliosis Research Society, Buenos Aires, Argentina, September 6-9, 2004.
  29. Nothias, M., Antonacci, M.D. et al. Passive cycling exercise in combination with serotonergic agonist therapy Improves motor recovery following experimental spinal cord injury, Scoliosis Research Society Buenos Aires, Argentina, September 6-9, 2004.
  30. Antonacci, M.D., Lecturer. Contemporary Topics in Pediatric Spinal Cord Injury. Shriners Hospital For Children, Cell therapies for Spinal Cord Repair, October 11-12, 2004.
  31. Antonacci, M.D. Visiting Lecturer, I Congresso Internacional de Cirugia de Columna Vertebral. Mexican Neurosurgery Congress, Leon, GTO, Mexico, September 28-30, 2004.
  32. Antonacci, M.D. SDEG Visiting Fellowship Lecture, Texas Scottish Rite Hospital, Strategies for Spinal Cord Regeneration, Dallas, TX, December 14-18, 2003.
  33. Antonacci, M.D. Howard H. Steele Conference: Injuries and Dysfunction of the Spinal Cord in Children, Invited Lecturer: Strategies in Spinal Cord Regeneration, Shriners Hospital for Children, Orlando, FL, December 7-9, 2003.
  34. Antonacci, M.D., Jean-Manuel Nothias, Tom Parks, Chris Cawley, Marion Murray, Ph.D. “Human Marrow Stromal Cell Transplants In a Collagen Matrix Support Axonal Regeneration of Descending Pathways Across Complete Spinal Cord Transections. Scoliosis Research Society, Winner Russell Hibbs Basic Science Award, Quebec, Canada, September 2003.
  35. Antonacci, M.D.: Strategies for Spinal Cord Regeneration. American Academy of Orthopaedic Surgeons, FOSA, Specialty Day, February 7, 2003.
  36. Antonacci, M.D., Jean-Manuel Nothias, Tom Parks, Chris Cawley, Marion Murray, Ph.D. Transplants of Unmodified Human Bone Marrow Stromal Cells in a Collagen Matrix Support Brainstem-Spinal Axonal Regeneration Across Complete Spinal Cord Transections. Cervical Spine Research Society, Miami, FL, December 5-7, 2002.
  37. Antonacci, M.D., Jean-Manuel Nothias, Tom Parks, Chris Cawley, Marion Murray, Ph.D., Axonal Regeneration Using Transplants of Genetically Engineered Cells in SCI, American Spinal Injury Association, Winner: First Place Paper, Vancouver, Canada May 2-6, 2002.
  38. Antonacci, M.D., Jean-Manuel Nothias, Catherine Humphreys, Alan Tessler, M.D., Itzhak Fisher, Ph.D., and Marion Murray, Ph.D.: Regeneration of Mammalian CNS axons across complete spinal cord transection using transplants of fibroblasts genetically modified to secrete neurotrophic factors. American Academy of Orthopaedic Surgeons, Dallas, TX, February 2002.
  39. Antonacci, M.D., Jean-Manuel Nothias, Catherine Humphreys, Alan Tessler, M.D., Itzhak Fisher, Ph.D., and Marion Murray, Ph.D.: Grant Update on: Regeneration of Mammalian CNS axons across complete spinal cord transection using transplants of fibroblasts genetically modified to secrete neurotrophic factors. Cervical Spine Research Society, Monterrey, CA, November-December 2001.
  40. Antonacci, M.D., Rutz, K., Mody, D.R., Weilbacher, D.G., and Heggeness, M.H.: A Histologic Study of Fractured Human Vertebral Bodies. Scoliosis Research Society, Cleveland, OH, September 2001.
  41. Antonacci, M.D., Jean-Manuel Nothias, Catherine Humphreys, Alan Tessler, M.D., Itzhak Fisher, Ph.D., and Marion Murray, Ph.D.: Axonal Regeneration Using Transplants of Genetically Engineered Fibroblasts in Spinal Cord Injury. Scoliosis Research Society, Winner: Russell Hibbs Basic Science Award, Cleveland, OH, September 2001.
  42. Antonacci, M.D., Jean-Manuel Nothias, Catherine Humphreys, Alan Tessler, M.D., Itzhak Fisher, Ph.D., and Marion Murray, Ph.D.: Regeneration of Mammalian CNS axons across complete spinal cord transection using transplants of fibroblasts genetically modified to secrete neurotrophic factors. Cervical Spine Research Society, Charleston, SC, November 29-December 3, 2000.
  43. Antonacci, M.D.: Surgical Treatment of Cervical Myelopathy and Radiculopathy, MCP-Hahnemann University School of Medicine, Dept. of Surgery Trauma Grand Rounds, Hahnemann University Hospital, Philadelphia, PA, November 2, 2000.
  44. Antonacci, M.D.: Surgical Treatment of Cervical Myelopathy and Radiculopathy, Dept. of Surgery Grand Rounds, Graduate Hospital, Philadelphia, PA, October 28, 2000.
  45. Antonacci, M.D.: Surgical Treatment of Cervical Myelopathy and Radiculopathy, MCP-Hahnemann University School of Medicine, Dept. of Neurology Grand Rounds, Hahnemann University Hospital, Philadelphia, PA, June 23, 2000.
  46. Antonacci, M.D.: Role of Transplanted Grafts in Spinal Cord Injury Recovery, Symposium: Spine in the New Millenium, Program Director: Parvis Kambin, M.D., Graduate Hospital, Philadelphia, PA, May 5, 2000.
  47. Antonacci, M.D.: Cervical Myelopathy and Surgical Approaches, Dept. of Neuroanatomy- Spinal Cord Injury Research Center, MCP-Hahnemann School of Medicine, April 7, 2000.
  48. Antonacci, M.D.: Cervical Radiculopathy and Myelopathy, General Surgery Grand Rounds; MCP-Hahnemann School of Medicine, March 14, 2000.
  49. Antonacci, M.D. Program Director: Update on the Management of Spinal Disorders, Speakers: Joseph Torg, M.D., Peter Pizzutillo, M.D., Darryl Antonacci, M.D., Robert Corba, D.O, and Steve Yokum, D.O., Jan. 29, 2000.
  50. Antonacci, M.D. Update on Lumbar Disorders, Neurology Grand Rounds, MCPHU, December 1999.
  51. Antonacci, M.D. Lumbar Radiculopathy, Medicine Grand Rounds, MCPHU, December 1999.
  52. Antonacci, M.D., and Heggeness, M.H.,: Osteonecrosis and Osteoporotic Compression Fractures. North American Spine Society, 13th Annual Meeting, San Francisco, CA, October 28-31, 1998.
  53. Antonacci, M.D., Mody, D.R., and Heggeness, M.H.: Histology of Human Vertebrae: Documentation of Intraosseous Nerves. North American Spine Society, 13th Annual Meeting, San Francisco, CA, October 28-31, 1998.
  54. Antonacci, M.D., Hanson, D.S., and Heggeness, M.H.: Regional Variation in Vertebral Bone Density and Trabecular Architecture are Influenced by Degenerative Change and Osteoporosis. North American Spine Society, 12th Annual Meeting, New York, NY, October 1997.
  55. Rutz, K., Mody, D.R., Weilbacher, D.G., and Heggeness, M.H.: A Histologic Study of Fractured Human Vertebral Bodies. North American Spine Society 11th Annual Conference, Vancouver, Canada, October 23-26, 1996.
  56. Antonacci, M.D., and Tullos, H.S.: The Effect of Osteoporosis on the Cancellous Bone Distribution of the Proximal Tibia. The American Association of Hip and Knee Surgeons 6th Annual Fall Meeting, Dallas, TX, November 10, 1996.
  57. Antonacci, M.D., Feinstein, W.K., Diliberti, T.C., and Landon, G.C. : Hip Dislocation Following Total Hip Arthroplasty. Grand Rounds Presentation for the Department of Orthopaedic Surgery, Baylor College of Medicine, February 1996.
  58. Antonacci, M.D., Mody, D.R., and Heggeness, M.H.: A Histologic Study of the Effects of Degenerative Change and Osteoporosis on the Vertebral Body. Grand Rounds Presentation for the Department of Internal Medicine and Rheumatology at the Houston Veterans Affairs Medical Center, August 14, 1995.
  59. Antonacci, M.D., Mody, D.R., Hanson, D.S., and Heggeness, M.H.: Age-related Changes in Vertebral Bone Density and Trabecular Architecture are Influenced by Degenerative Changes. Mid-America Orthopaedic Association 13th Annual Meeting, Palm Beach, FL, April 19-23, 1995.
  60. Antonacci, M.D., Biology of Fracture Repair, A Symposium, Wyeth-Ayerst Orthopaedic Resident Reporter Program, AAOS, Orlando, FL, February 16-21, 1995.
  61. Antonacci, M.D., Hanson, D.S., and Heggeness, M.H.: Pitfalls in the Use of Bone Mineral Density Measurements by Dual Energy X-Ray Absorptiometry. (Poster Exhibit). American Academy of Orthopaedic Surgeons 62nd Annual Meeting, Orlando, FL, February 16-21, 1995.
  62. Antonacci, M.D., Mody, D.R., Hanson, D.S., and Heggeness, M.H.: Age-related Changes in Vertebral Bone Density and Trabecular Architecture are Influenced by Degenerative Change. (Poster Exhibit). American Academy of Orthopaedic Surgeons 62nd Annual Meeting, Orlando, FL, February 16-21, 1995.
  63. Antonacci, M.D., Mody, D.R. and Heggeness, M.H.: A Histologic Study of the Vertebral Endplate. North American Spine Society 9th Annual Conference, Minneapolis, MN, October 1994.
  64. Antonacci, M.D., Mody, D.R., and Heggeness, M.H.: A Histologic Study of the Human Vertebral Body. North American Spine Society 9th Annual Conference, Minneapolis, MN, October 1994.
  65. Antonacci, M.D., Joshi, A.B., Hanson, D., and Tullos, H.S.: The Trabecular Architecture of the Patella: Implications for Design and Fixation. The American Association of Hip and Knee Surgeons 4th Annual Fall Meeting, Washington, DC, September 24-26, 1994.
  66. Antonacci, M.D., Mody, D.R., Hanson, D.S., and Heggeness, M.H.: Age-related Changes in Vertebral Bone Density and Trabecular Architecture are Influenced by Degenerative Change and Osteoporosis. Grand Rounds Presentation for the Department of Orthopaedic Surgery, Baylor College of Medicine, Houston, TX, August 1994.
  67. Antonacci, M.D., Noble, P.C., and Tullos, H.S.: Sub-regional Cancellous Bone Loss in the Proximal Femur as a Predictor of Fracture Risk. The American Orthopaedic Association’s 27th Annual Residents’ Conference, Atlanta, GA, March 23-26, 1994.
  68. Schlichting, J.L., Massotti, M., Antonacci, M.D., and Guidotti, A.: Differences in the Pharmacological Profiles of Benzodiazepine Recognition Site Ligands Reflect Interactions with Heterogeneous Population of GABAA Receptors. Society for Neuroscience Annual Meeting, 1989.

Media Appearances

  1. Radio Talk Show: Medical Frontiers, hosted by Joel Posner, M.D., WWDB 96.5, Topic: Cervical and Lumbar Stenosis and other Surgical Spine Disorders, February 5, 2000.
  2. Radio Talk Show: Medical Frontiers, hosted by Joel Posner, M.D., WWDB 96.5,Topic: Spinal Disorders, October 9, 1999.
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