University of Missouri School of Medicine MU Health School of Medicine

Theodore J. Choma, MD

Vice-Chairman, Department of Orthopaedic Surgery
Professor of Orthopaedic Surgery
Chief, Spine Center
Director, Missouri Spine Center
Chairman, University Physicians 2015-2016

 

Clinical and Research Interests

Cervical spine stabilization, lumbar disc disease and back pain, myelodysplastic syndromes, scoliosis, skeletal trauma, spinal cord injuries, spina bifida, spine, spinal deformities, spine tumors, spine degenerative diseases, spinal trauma, spinal biomechanics, and disc replacement technologies.

Contact Information

University of Missouri
Missouri Orthopaedic Institute
1100 Virginia Ave
Columbia, MO 65212
Phone: 573-882-1440
E-mail: chomat@health.missouri.edu

Certifications

  • Diplomate, American Board of Orthopaedic Surgery, 2004 (Recertified 2013)
  • Diplomate, National Board of Medical Examiners, 1993
  • Advanced Trauma Life Support, 1993-current
  • Advanced Cardiac Life Support, 1992-1997
  • Basic Life Support, 1988-current

Education

  • MD: Eastern Virginia Medical School, Norfolk, Va.
  • Residency: Walter Reed Army Medical Center, Washington, D.C.
  • Fellowship: Twin Cities Spine Center, Minneapolis, Minn.

Academic Appointments

  • 2013-present: Professor, Department of Orthopaedic Surgery with tenure, University of Missouri-Columbia
  • 2008-present: Vice-chairman, Department of Orthopaedic Surgery, University of Missouri-Columbia
  • 2006-2013: Associate Professor, Department of Orthopaedic Surgery, University of Missouri-Columbia
  • 2006-present: Director, Missouri Spine Center, University of Missouri-Columbia

Scholarships

  • AO/ASIF Fellowship in Spine Surgery with Mr. J. K. Webb, Nottingham, UK 1999 (Mar-Apr)
  • Army Health Professions Scholarship, 1989- 1992
  • EVMS Summer Student Research Fellowship, 1989
  • Hill Scholarship (EVMS), 1988.
  • Lehigh University Alumni Scholarship, 1980- 1985

Other Employment

  • 2002-2006: Assistant Professor of Surgery, Uniformed Services, University of the Health Sciences Bethesda, MD
  • 2004-2006: Residency program director, Dwight D. Eisenhower Army Medical Center, Fort Gordon, Ga.
  • 2002-2005: Chief, spine surgery, Dwight D. Eisenhower Army Medical Center, Fort Gordon, Ga.
  • 2002-2004: Assistant program director, Orthopaedic Surgery Residency, Dwight D. Eisenhower Army Medical Center, Fort Gordon, Ga.
  • 2001-2005: Staff orthopaedic surgeon, Dwight D. Eisenhower Army Medical Center, Fort Gordon, Ga.
  • 1994-1995: Instructor, Department of Mathematics and Science European Division, University of Maryland, Heidelberg, Germany
  • 1993-1995: Brigade flight surgeon, 4th Aviation Brigade, 1st Armored Division, Hanau, Germany
  • 1992-2005: Medical corps officer, United States Army Active Duty
  • 1987-1988: Biomechanical engineer, Orthopedics Section, CDRH, U.S. Food and Drug Administration, Silver Spring, Md.
  • 1986-1987: Research Assistant, Department of Engineering Science and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, Va.

Honors & Awards

  • AOSpine Excellence in Education Award, North America Regional Faculty, Dec, 2014
  • Certificate of Recognition for an Entrepreneurial Spirit. University of Missouri, 2014.
  • Co- recipient, Vice Chancellor’s Award for UMHS Innovation and Improvement Sharing Days, 2014.
  • Co- recipient, Louis A. Goldstein Award for best clinical poster presentation, Scoliosis Research Society, Lyon, France, 2013.
  • Named, “20 Spine & Neurosurgeon Leaders at Large Academic Medical Centers”, by Becker’s Spine Review, Apr, 2012
  • Named, “10 Spine Surgeon Leaders of Academic Medical Centers to Know”, by Becker’s Orthopaedic and Spine Review, Feb, 2011
  • Peer - Selected, Best Doctors in America 2009-14
  • US Army (EUR) Flight Surgeon of the Year, 1995
  • Alpha Omega Alpha honor medical society, inducted 1991

Publications

  1. Stannard JT, Edamura K, Stoker AM, O’Connell GD, Kuroki K, Hung CT, Choma TJ, Cook JL. Development of a whole organ culture model for intervertebral disc disease. J Orthop Trans. 2016 April;4(2):1-8.
  2. Smith MJ, Reiter MJ, Crist BD, Schultz LG, Choma TJ. Improving Patient Satisfaction Through Computer-Based Questionnaires. Orthopedics. 2016 Jan;39(1):e31-5.
  3. Choma TJ, Rechtine GR, McGuire RA Jr., Brodke DS. Treating the Aging Spine. J Am Acad Orthop Surg. 2015 Dec;23(12):e91-e100.
  4. Goldstein CL, Brodke DS, Choma TJ. Surgical Management of Spinal Conditions in the Elderly Osteoporotic Spine. Neurosurgery. 2015 Oct;77 Suppl 4:S98-107.
  5. Lubelski D, Choma TJ, Steinmetz MP, Harrop JS, Mroz TE. Perioperative Medical Management of Spine Surgery Patients with Osteoporosis. Neurosurgery. 2015 Oct;77 Suppl 4:S92-7.
  6. Goldstein CL, Chutkan NB, Choma TJ, Orr RD. Management of the Elderly with Vertebral Compression Fractures. Neurosurgery. 2015 Oct;77 Suppl 4:S33-45.
  7. Milles JL, Gallizzi MA, Sherman SL, Smith PA, Choma TJ. Does a syrinx matter for return to play in contact sports? A case report and evidence-based review of return to play criteria following transient quadriplegia. Sports Health 2014 Sep;6(5):440-5.
  8. Pfeiffer, F, Choma T, Kueny R. Finite element analysis of pedicle screw in artificial bone samples with and without supplemental cement augmentation. Computer Methods in Biomechanics and Biomedical Engineering 2014 Jul 1:1-9.
  9. Steeby SF, Jeffries JT, Choma TJ, Kuhns CA. Abdominal Heterotopic bone formation following the utilization of bone morphogenic protein to augment spinal fusion: a case report. JBJS Case Connector 2014; 4(1):e51-4.
  10. Kuhns CA, Reiter M, Pfeiffer FM, Choma TJ. Surgical strategies to improve fixation in the osteoporotic spine: The effects of tapping, cement augmentation, and screw trajectory. Global Spine J. 2014 Feb:4(1): 47-54.
  11. Uppal HS, Peterson BE, Misfeldt ML, Della Rocca GJ, Volgas DA, Murtha YM, Stannard JP, Choma TJ, Crist BD. The viability of cells obtained using the Reamer – Irrigator- Aspirator system and in bone graft from the iliac crest. Bone Joint J 2013; 95:1269-74.
  12. Knapp DR, Goytan MJ, Perra JH, Noordeen HH, Smith JS, Broadstone PA, Berven SH, Choma TJ, Ames CP, Roh MS, Kim YJ, Ruder J. Assessment of Morbidity and Mortality Collection Data 2009. Spine Deformity 2013; 1(3): 179-184.
  13. Choma TJ, Pfeiffer FM, Swope RW, Hirner JP. Pedicle Screw Design and Cement Augmentation in Osteoporotic Vertebrae: Effects of Fenestrations and Cement Viscosity on Fixation and Extraction. Spine 2012 Dec 15; 37(26):E1628-E1632.
  14. Choma TJ. Epidural Steroids for Lumbar Disc Herniation: What Can SPORT Tell Us?: Commentary on an article by Kristen Radcliff, MD, et al.: "The Impact of Epidural Steroid Injections on the Outcomes of Patients Treated for Lumbar Disc Herniation. A Subgroup Analysis of the SPORT Trial". J Bone Joint Surg Am. 2012 Aug 1;94(15):e1151-2.
  15. Choma TJ, Pfeiffer, FM, Vallurupalli S, Mannering IH. Segmental Stiffness Achieved by Anterior, Posterior, or 360° Fixation for Unstable Lumbar Spondylolytic Motion Segments. Global Spine J 2012; 2(2): 79-86.
  16. Paisley K, Jeffries JT, Monroe MH, Choma TJ. Dispersal pattern of injectate after lumbar interlaminar epidural spinal injection evaluated with computerized tomography. Global Spine J 2012; 2(1): 27- 31.
  17. Bal BS and Choma TJ. What to Disclose? Revisiting Informed Consent. Clin Ortho Rel Res, 2012 May; 470(5): 1346-56.
  18. Choma TJ, Schuster JM, Norvell DC, Dettori JR, Chutkan NB. Fusion vs. non-operative management for chronic low back pain: Do co-morbid diseases or general health factors affect outcome? Spine 2011Oct 1; 36(21S): S87-S95.
  19. Smith JS, Sansur CA, Donaldson WF 3rd, Perra JH, Mudiyam R, Choma TJ, Zeller RD, Knapp DR Jr, Noordeen HH, Berven SH, Goytan MJ, Boachie-Adjei O, Shaffrey CI. Short-Term Morbidity and Mortality Associated with Correction of Thoracolumbar Fixed Sagittal Plane Deformity: A Report from the Scoliosis Research Society Morbidity and Mortality Committee. Spine 2011 May 20;36(12):958-964.
  20. Smith JS, Shaffrey CI, Sansur CA, Berven SH, Fu KM, Broadstone PA, Choma TJ, Goytan MJ, Noordeen HH, Knapp DR, Hart RA, Donaldson WF 3rd, Polly DW Jr, Perra JH, Boachie-Adjei O. Rates of Infection Following Spine Surgery Based on 108,419 Procedures: : A Report from the Scoliosis Research Society Morbidity and Mortality Committee. Spine 2011 Apr 1: 36(7):556-563.
  21. Choma TJ, Frevert WF, Carson WL, Waters NP, Pfeiffer FM. Biomechanical Analysis of Pedicle Screws in Osteoporotic Bone with Bioactive Cement Augmentation Using Simulated In Vivo Multi-Component Loading. Spine (Phila Pa 1976). 2011 Mar 15;36(6):454-62.
  22. Williams BJ, Sansur CA, Smith JS, Berven SH, Broadstone PA, Choma TJ, Goytan MJ, Noordeen HH, Knapp DR, Hart RA, Zeller RD, Donaldson, WF III, Polly DW Jr, Perra JH, Boachie-Adjei O, Shaffrey CI. Incidence of unintended durotomy in spine surgery based on 108,748 cases. Neurosurgery 2011 Jan;68(1):117-124.
  23. Sansur CA, Reames D, Smith JS, Hamilton DK, Berven SH, Broadstone PA, Choma TJ, Goytan MJ,. Noordeen HH. Knapp R, Hart RA, Zeller RD, Donaldson WF, Polly DW, Perra JH, Boachie-Adjei O , Shaffrey CI. Morbidity and Mortality in the Surgical Treatment of 10,242 Adults with Spondylolisthesis. J Neurosurgery: Spine 2010 Nov 13(5):589-93.
  24. Fu KG, Smith JS, Polly DW, Perra JH, Sansur CA, Berven SH, Broadstone PA, Choma TJ, Goytan MJ, Noordeen HH, Knapp DR, Hart RA, Zeller RD, Donaldson WF, Boachie-Adjei O, Shaffrey CI. Morbidity and Mortality in the Surgical Treatment of 605 Pediatric Patients with Isthmic or Dysplastic Spondylolisthesis. Spine 35 (Aug 25, 2010, epub ahead of print)
  25. Williams BJ, Sansur CA, Smith JS, Berven SH, Broadstone PA, Choma TJ, Goytan MJ, Noordeen HH, Knapp DR, Hart RA, Zeller RD, Donaldson, WF III, Polly DW Jr, Perra JH, Boachie-Adjei O, Shaffrey CI. Incidence of unintended durotomy in spine surgery based on 108,748 cases. Neurosurgery (accepted Jul 2010, in press)
  26. Sansur CA, Reames D, Smith JS, Hamilton DK, Berven SH, Broadstone PA, Choma TJ, Goytan MJ,. Noordeen HH. Knapp R, Hart RA, Zeller RD, Donaldson WF, Polly DW, Perra JH, Boachie-Adjei O , Shaffrey CI. Morbidity and Mortality in the Surgical Treatment of 10,242 Adults with Spondylolisthesis. J Neurosurgery: Spine (in press, accepted Jan 2010).
  27. Choma TJ, Frevert WF, Carson WL, Waters NP, Pfeiffer FM. Biomechanical Analysis of Pedicle Screws in Osteoporotic Bone with Bioactive Cement Augmentation Using Simulated In Vivo Multi-Component Loading. Spine (September 24, 2010, epub ahead of print).
  28. Smith JS, Fu KG, Polly DW, Sansur CA, Berven SH, Broadstone PA, Choma TJ, Goytan MJ, Noordeen HH, 7, Knapp DR, Hart RA, Zeller RD, Donaldson WF, Perra JH, Boachie-Adjei O, Shaffrey CI. Complication Rates of Three Common Spine Procedures and Rates of Thromboembolism Following Spine Surgery Based on 108,419 Procedures. Spine 35(June 24, 2010, epub ahead of print).
  29. Fu KM, Smith JS, Shaffrey CI, Berven SH, Broadstone PA, Choma TJ, Goytan MJ, Noordeen HH, Knapp DR, Hart RA, Zeller RD, Donaldson WF III, Polly D, Perra JH, Boachie-Adjei O. Morbidity and mortality in the surgical treatment of 10,329 adults with degenerative lumbar stenosis: a report from the Scoliosis Research Society Morbidity and Mortality Committee. J Neurosurg Spine. May;12(5):443-6, 2010.
  30. Lehmen JA, Babbel DM, Mikhitarian K, Choma TJ. Paraganglioma Presenting as Metastatic Lesion in a Cervical Vertebra. Spine. In press, 2009.
  31. Choma TJ, Miranda J, Siskey R, Baxter R, Steinbeck MJ, Kurtz SM. Retrieval Analysis of a ProDiscT-L Total Disc Replacement. J Spinal Disord Tech 2009;22:290–296.
  32. Choma TJ, Burke M, Kim C, Kakarlapudi R. Epidural Abscess as a Delayed Complication of Spinal Instrumentation in Scoliosis Surgery – A case of progressive neurologic dysfunction with complete recovery. Spine 33(3): E76-80, February 1, 2008.
  33. Ofiram E, Polly DW, Gilbert TJ, Choma TJ. Is It Safer to Place Pedicle Screws in the Lower Thoracic Spine Than in the Upper Lumbar Spine? Spine 32(1):49-54, January 1, 2007.
  34. Choma TJ, Denis F, Lonstein JE, Perra JH, Schwender JD, Garvey TA, Mullin WJ. Stepwise Methology for Plain Radiographic Assessment of Pedicle Scew Placement: A Comparison with Computed Tomography. J Spinal Disord Tech 19(8): 547-553, 2006.
  35. Choma TJ, Polly DP. Techniques and indications for pedicle screw insertion in the thoracic and lumbosacral spine. Contemporary Spine Surgery 5(12): 1-9, 2004.
  36. Choma TJ, Kuklo TR, Islinger RB, Murphey MD, Temple HT.: Paget's disease of bone in patients younger than 40 years. Clin Orthop Relat Res. 2004 Jan;(418):202-4.
  37. Choma TJ, Chwirut D, Polly DP. Biomechanics of long segment fixation – hook patterns and rod strain. J Spinal Disorders, 14(2): 125-32, 2001
  38. Islinger RB, Kuklo TR, Owens BD, Horan PJ, Choma TJ, Murphey MD, Temple HT.: Langerhans cell histiocytosis in patients older than 21 years. Clin Orthop Rel Res 379:231-5, 2000
  39. Kilkelly FX, Choma TJ, Popovic N, Miller DW, Sweet, DE. Tendon Repair by Laser Welding: A Histologic and Biomechanical Comparison with Suture Repair. Lasers Surg. Med. 19(4): 487-491, 1996.
  40. Klioze SD, Poppas, DP, Rooke CT, Choma TJ, Schlossberg S.: Development and Initial Application of a Real Time Thermal Control System for Laser Tissue Welding. J. Urology 152: 744-748, 1994.
  41. Choma TJ, Davlin LB, Wagner JS. Iliac Osteomyelitis in the Newborn Presenting as Nonspecific Musculoskeletal Sepsis. Orthopedics 17(7): 632-634, 1994
  42. Poppas DP, Choma TJ, Rooke CT, Schlossberg SM. Preparation of Human Albumin as an Adjuvant to Laser Welding: A New Technique. Lasers Surg. Med. 13: 577-580, 1993
  43. Rooke CT, Poppas DP, Choma TJ, Schlossberg SM. CO 2 Laser Welding Versus Conventional Microsuture Repair in a Patch Graft Urethroplasty: A Comparison. Urology, 41(6): 585-589, 1993.
  44. Choma TJ, Poppas DP, Rooke CT, Schlossberg SM. CO 2 Laser Urethroplasty in the Rabbit: A Preclinical Model. Lasers Surg. Med. 12: 639-644, 1992.

Patents

  • Radiopaque-enhanced Bone or Spine Model for Fluoroscopy #13UMC040prov; 2/2013
  • Laser Tissue Welding Control System. U.S. Patent # 5,334,191 ; August, 1994
  • Laser Tissue Welding Control System. U.S. Patent # 5,409,481 ; April, 1995

Referred Paper Presentations

  1. Stannard, JT. Stoker, A. Pfeiffer, FM. Choma TJ, Cook, JL. Effects of Diurnal Loading on Intervertebral Disc Using a Whole Organ Culture Model. Accepted at Orthopaedic Research Society Annual Meeting, Las Vegas, NV Mar, 2015.
  2. Stannard, JT. Stoker, A. Zallas, A. Pfeiffer, P. Choma TJ, Cook, JL. Effects of Static Loading on Intervertebral Disc Using a Whole Organ In Vitro Culture Model. Accepted at Orthopaedic Research Society Annual Meeting, Las Vegas, NV Mar, 2015.
  3. Pfeiffer FM and Choma TJ. Validation of Pedicle Screw Failure Modes in Osteoporotic Vertebrae. Accepted at ASME Verification and Validation Symposium, Las Vergas, NV May 20 4.
  4. Stoker AM, Crist B, Choma T, Cook JL and Stannard JP. Analysis of Reamer Irrigator and Aspirator (RIA) System Aspirate Protein Content. Presented at Orthopaedic Research Society Annual Meeting, San Antonio, TX, Jan, 2013.
  5. Stannard JT, Edamura K, Choma TJ, Stoker A, O'Connell G, Kuroki K, Kuhns CA, Reinsel T, Hung C, Jeffries JT, Cook JL. A novel model for intervertebral disc degeneration using whole organ explants in a rotating bioreactor. Presented at North American Spine Society 27th Annual Meeting, Dallas, TX, Oct, 2012.
  6. Uppal, H, Peterson, B, Misfeldt, M, Murtha, YM, Della Rocca, GJ, Stannard, JP, Volgas, DA, Choma, TJ, Crist, BD. Cell viability and osteogenic potential of bone graft obtained via iliac crest versus reamer irrigator aspirator (RIA). . 2012 Orthopaedic Trauma Association Annual Meeting. October 3-6, 2012. Minneapolis, MN. Abstract #16. International Meeting.
  7. Choma TJ, Pfeiffer FM, Vallurupalli S. Segmental Stiffness Achieved by Three Types of Fixation for Unstable Lumbar Spondylolytic Motion Segments: Anterior, Posterior, or Both? AONA Joint Congress- 2012 Challenges in Fracture Care Across Disciplines, Lake Buena vista, FL, Feb 2012.
  8. Choma TJ, Pfeiffer FM, Hirner JH. Evaluation of Pedicle Screw Failure in Osteoporotic Vertebrae: Effect of cement augmentation and fenestrated screws. AONA Joint Congress- 2012 Challenges in Fracture Care Across Disciplines, Lake Buena vista, FL, Feb 2012.
  9. Kuhns CA, Jenkins T, Pfeiffer FM, Jeffries JT, Choma TJ. Bailout Screw Placement in the Posterior Subaxial Cervical Spine—Is a Spinolaminar Screw a Viable Option? Accepted at Cervical Spine Research Society 39th Annual Meeting, Scottsdale, Az 2011.
  10. Knapp DR, Goytan MJ, Perra JH, Nordeen HH, Smith JS, Broadstone PA, Berven SH, Choma TJ, Ames CP, Roh MS, Kim YJ. Assessment of Morbidity and Mortality Collection data 2009. Scoliosis Research Society, Louisville, KY, Sep 2011.
  11. Choma TJ, Pfeiffer FM, Hirner J. Assessment of cement augmentation and screw trajectory on pedicle screw fixation in osteoporotic vertebrae. Global Spine Congress, Barcelona, 2011.
  12. Complication rates of three common spine procedures based on 26,910 cases: a report from the Scoliosis Research Society Morbidity and Mortality Committee. (IMAST, 2009)
  13. Morbidity and mortality in the surgical treatment of 605 pediatric patients with isthmic or dysplastic spondylolisthesis: a report from the Scoliosis Research Society Morbidity and Mortality Committee. (IMAST, 2009
  14. Rates of PE and DVT following spine surgery based on 108,419 procedures: a report from the Scoliosis Research Society Morbidity and Mortality Committee. (IMAST, 2009)
  15. Complications rates in the treatment of adult scoliosis: a report from the Scoliosis Research Society Morbidity and Mortality Committee. (poster presentation at SRS, 2009; oral presentation at IMAST, 2009)
  16. Rates of infection following spine surgery based on 108,419 procedures: a report from the Scoliosis Research Society Morbidity and Mortality Committee. (Scoliosis Research Society, 2009)
  17. Segmental Stiffness Achieved by Three Types of Instrumented Fixation for Unstable Lumbar Spondylolytic Motion Segments. ASME 4th Frontiers in Biomedical Devices Conference June 8-9, 2009, Irvine, California, USA
  18. Evaluation of Three Bioactive Cements used to Increase Fixation Strength of Pedicle Screws in Osteoporotic Bone. ASME 4th Frontiers in Biomedical Devices Conference June 8-9, 2009, Irvine, California, USA
  19. Finite element analysis of Pedicle screws in osteoporotic bone with and without cement augmentation. Global Spine Congress 2009 June 23-26, San Francisco, CA
  20. Morbidity and mortality in the surgical treatment of 10,329 adults with degenerative lumbar stenosis: a report from the Scoliosis Research Society Morbidity and Mortality Committee. (AANS/CNS Joint Section on Spine and Peripheral Nerve, 2009)
  21. Complications in the surgical treatment of 2,258 adults with isthmic spondylolisthesis: a report from the Scoliosis Research Society Morbidity and Mortality Committee. (AANS/CNS Joint Section on Spine and Peripheral Nerve, 2009)
  22. Short-term morbidity and mortality associated with correction of thoracolumbar fixed sagittal plan deformity. A report of the Scoliosis Research Society Morbidity and Mortality Committee. (AANS/CNS Joint Section on Spine and Peripheral Nerve, 2009)
  23. Total Disc Replacement The Eisenhower Experience. Presented at Society of military Orthopaedic Surgeons 48th annual meeting, Dec 2006. Honolulu, HI.
  24. Radiographic analysis of pedicle screw placement: a comparison with CT; presented at the 8th International Meeting for Advanced Spine Techniques, July, 2001. Paradise Island, Bahamas.
  25. Biomechanics of long segment fixation: Hook patterns and rod strain.; presented at the Society of Military Orthopaedic Surgeons 40 th annual meeting, December, 1998. Vail, CO
  26. Langerhaans cell histiocytosis presenting in patients over 21 years old: A review of cases at the AFIP; presented at the Society of Military Orthopaedic Surgeons 40 th annual meeting, December, 1998. Vail, CO
  27. Langerhaans cell histiocytosis presenting in patients over 21 years old: A review of cases at the AFIP; presented at Southern Medical Association 93 rd annual meeting, November 1998. New Orleans, LA
  28. Increased rod diameter or number of hooks: Which is stiffer?; presented at North American Spine Society 13 th annual meeting, October 1998. San Francisco, CA
  29. Biomechanics of long segment fixation: Hook patterns and rod strain.; presented at Scoliosis Research Society 33 rd annual meeting, September 1998. New York, NY
  30. Increased rod diameter or number of hooks: Which is stiffer? presented at Scoliosis Research Society 33 rd annual meeting, September 1998. New York, NY
  31. Intraosseous Lipoma vs Unicameral Bone Cyst in the Foot: Is There a Relationship? presented at Society of Military Orthopaedic Surgeons 39th annual meeting, October, 1997. Lake Placid, NY
  32. Paget’s Disease in Patients Under 40 Years Old: A Review of Cases at the AFIP; presented at American Academy of Orthopaedic Surgeons 65th annual meeting, February, 1997. San Francisco, CA
  33. Tendon Repair by Laser Welding: A Biomechanical and Histologic Comparison of Suture Repair with CO 2 and Argon Lasers; presented at Society of Military Orthopaedic Surgeons annual meeting, November, 1994. Hilton Head, SC
  34. Laser Tissue Welding; presented at the University of Maryland European Division 5th Biennial Mathematics and Science Symposium, October, 1994. Heidelberg, GE
  35. Suture Materials Used in Laser Tissue Welding; presented at the American Society for Laser Medicine and Surgery Annual Meeting, April, 1993.
  36. Optimal Temperature Values for Laser Welding of Rat Urethral Tissues: Time Zero Studies; presented at the American Society for Laser Medicine and Surgery. May 17-20, 1992. Miami, FL.
  37. CO 2 Laser Urethroplasty in the Rabbit: A Preclinical Model; presented at the Eastern Student Research Forum, University of Miami School of Medicine, 1991.
  38. Patch Graft Urethroplasty in the Rat Using a CO 2 Laser; presented at the Eastern Student Research Forum, University of Miami School of Medicine, 1990.
  39. CO 2 Laser Urethroplasty in the Rabbit: A Preclinical Model; presented at the American Society for Laser Medicine and Surgery. April 6-8, 1990. Nashville, TN.
  40. CO 2 Laser Urethroplasty in the Rabbit: A Preclinical Model; presented at the EVMS Student Research Forum, 1989.

Poster Presentations

  1. Stannard JT, Stoker AM, Choma TJ. Effects of Diurnal Loading on Intervertebral Disc using a Whole Organ In vitro Culture Model. Accepted at Orthopaedic Research Society annual meeting, Las Vega, NV, Mar 2015.
  2. Harper RA, Choma TJ, Pfeiffer FM. The Minipi as a potential model for pedicle screw fixation: Morphometry and Mechanics. Presented at One AO Meeting, Las Vegas , NV Feb 2015.
  3. Stannard JT, Stoker AM, Choma TJ, Reinsel T, Kuhns CA, Cook JL. A Whole Organ Culture Model for Intervertebral Disc in the Presence of Nicotine and Cotinine Using Rat Tail Explants in a Rotating Bioreactor. Orthopaedic Research Society 60th Annual Meeting, New Orleans, LA, Mar 2014.
  4. Broadstone PA, Burton DC, Goytan MJ, Smith JS, Choma TJ, Samdani AF, Kim YJ, Heary RF, Place HM, Fuller JE, Rathjen KE, Dimar JR. Using the Scoliosis Research Society 2011 M&M Database to Determine Significant Difference in Case Volume and Membership Status to Occurrence of Complications ( Goldstein Award Winner) Presented at Scoliosis Research Society 48th Annual Meeting, Lyon France, Sep, 2013.
  5. Pfeiffer FM, Choma TJ, Reiter M, Hirner J, Kleinhans K. Biomechanical Evaluation of Revising Failed Pedicle Screws in Osteoporotic Vertebra Using Cortical Bone Dowels. Presented at Orthopaedic Research Society Annual Meeting, San Antonio, TX, Jan, 2013.
  6. Choma TJ and Pfeiffer FM. A New Look at the Clinical and Biomechanical Modes of Failure and Surgical Methods to Improve Pedicle Screw Fixation in the Osteoporotic Spine. AOA 125th Annual Meeting, Washington, DC, June 2012.
  7. Edamura K; Stannard JT; Stoker AM; O'Connell GD; Kuroki K; Hung CT; Choma TJ; Jeffries JT; and Cook JL. A whole organ culture model for intervertebral disc using rat tail explants in a rotating bioreactor. ORS 58th Annual Meeting, San Francisco, CA Feb 2012.
  8. Pfeifer FM, Kuhns C, Jenkins T, Jeffries JT, Choma TJ. Bailout Screw Placement Option for the Subaxial Cervical Spine (C3 to C6): A Biomechanical Study of Posterior Cervical Spinolaminar Screw Placement. ORS 58th Annual Meeting, San Francisco, CA Feb 2012.
  9. Pfeiffer FM, Choma TJ, Reiter M, Hirner J. Does tapping prior to bioactive cement augmentation of pedicle screws make a difference to screw stability in the osteoporotic spine? ORS 58th Annual Meeting, San Francisco, CA Feb 2012.
  10. Choma TJ, Pfeiffer FM. A New Look at the Clinical and Biomechanical Modes of Failure and Surgical Methods to Improve Pedicle Screw Fixation in the Osteoporotic Spine. Scoliosis Research Society annual meeting, Louisville, KY, Sep 2011.
  11. Pfeiffer FM, Choma TJ. Evaluation of Pedicle Screw Failure in Osteoporotic Vertebrae. ORS 57th Annual Meeting, Long Beach Ca, Jan, 2011.
  12. Pfeiffer FM, Choma TJ, Hirner J. Evaluation of Pedicle Screw Augmentation and Trajectory Using Loading Protocol That Simulates In Vivo Combinations of Pullout, Migration and Toggle. ORS 57th Annual Meeting, Long Beach Ca, Jan, 2011.
  13. Choma TJ, Pfeiffer, FM. Analysis of pedicle screw design for cement augmentation in osteoporotic vertebrae. American Academy of Orthopaedic Surgeons 78th Annual Meeting, San Diego, CA. Feb 2011.
  14. Choma TJ, Pfeiffer, FM, Vallurupalli S, Mannering IH. Segmental Stiffness Achieved by Anterior, Posterior, or 360° Fixation for Unstable Lumbar Spondylolytic Motion Segments. ORS 56th Annual Meeting, March 6-9, 2010 in New Orleans, Louisiana.
  15. Smith JS, Shaffrey CI, Sansur CA, Berven SH, Broadstone PA, Choma TJ, Goytan MJ, Noordeen HH, Knapp DR, Hart RA, Zeller RD, Donaldson, WF III, Polly D, Perra JH, Boachie-Adjei O. Complication Rates of Three Common Spine Procedures and Rates of PE/DVT Following Spine Surgery. American Academy of Orthopaedic Surgeons 77th Annual Meeting, New Orleans, LA, Mar 2010.
  16. Sansur CA, Smith JS, Shaffrey CI, Sansur CA, Berven SH, Broadstone PA, Choma TJ, Goytan MJ, Noordeen HH, Knapp DR, Hart RA, Zeller RD, Donaldson, WF III, Polly D, Perra JH, Boachie-Adjei O. Complications rates in the treatment of adult scoliosis: a report from the Scoliosis Research Society Morbidity and Mortality Committee. Scoliosis Research Society 2009.
  17. Smith JS, Shaffrey CI, Sansur CA, Berven SH, Broadstone PA, Choma TJ, Goytan MJ, Noordeen HH, Knapp DR, Hart RA, Zeller RD, Donaldson, WF III, Polly D, Perra JH, Boachie-Adjei O. Rates of PE and DVT following spine surgery based on 108,419 procedures: a report from the Scoliosis Research Society Morbidity and Mortality Committee. Scoliosis Research Society 2009
  18. Fu KM, Smith JS, Shaffrey CI, Berven SH, Broadstone PA, Choma TJ, Goytan MJ, Noordeen HH, Knapp DR, Hart RA, Zeller RD, Donaldson, WF III, Polly D, Perra JH, Boachie-Adjei O. Morbidity and mortality in the surgical treatment of 605 pediatric patients with isthmic or dysplastic spondylolisthesis: a report from the Scoliosis Research Society Morbidity and Mortality Committee. Scoliosis Research Society 2009
  19. Pfeiffer FM, Choma TJ, Carson WL, Waters NP: “Evaluation of pedicle screw augmentation using loading protocol that simulates in vivo combinations of pullout, migration and toggle” Global Spine Congress 2009 June 23-26, San Francisco, CA
  20. Removal of Malpositioned Thoracic Pedicle Screws Threatening the Aorta. presented at the 13th International Meeting for Advanced Spine Techniques, July, 2006
  21. Is it Safer to Place Pedicle Screws in the Lower Thoracic Spine than in the Upper Lumbar Spine? Comparison of Pedicle Width of the Lower Thoracic and the Upper Lumbar Spine Using MR. Presented at the North American spine Society 20th Annual Meeting, Philadelphia, PA , September 2005.
  22. Radiographic analysis of pedicle screw placement: a comparison with CT; Society of Military Orthopaedic Surgeons 43rd annual meeting, December 2001.
  23. Morphometric analysis of thoracolumbar pedicles in adolescent idiopathic scoliosis; presented at the 8th International Meeting for Advanced Spine Techniques, July, 2001. Paradise Island, Bahamas.
  24. Langerhaans cell histiocytosis presenting in patients over 21 years old: A review of cases at the AFIP; American Academy of Orthopaedic Surgeons 65th annual meeting, February, 1999. Anaheim, CA
  25. Intraosseous Lipoma vs. Unicameral Bone Cyst in the Foot: Is There a Relationship?; presented at American Academy of Orthopaedic Surgeons 65th annual meeting, March, 1998. New Orleans, LA
  26. Paget’s Disease in Patients Under 40 Years Old: A Review of Cases at the AFIP; American Academy of Orthopaedic Surgeons 64th annual meeting, February, 1997. San Francisco, CA
  27. Paget’s Disease in Patients Under 40 Years Old: A Review of Cases at the AFIP; Society of Military Orthopaedic Surgeons 38th annual meeting, November, 1996. San Diego, CA
  28. Tendon Repair by Laser Welding: A Biomechanical and Histological Comparison of Suture Repair with CO2 and Argon Lasers; American Academy of Orthopaedic Surgeons 62nd Annual Meeting, February, 1995.

 

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