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`Jorge A. Ochoa, Ph.D., P.E.
`Principal Engineer
`
`Professional Profile
`
`Dr. Jorge A. Ochoa is a Principal Engineer in Exponent’s Biomedical Engineering practice.
`Dr. Ochoa has over 25 years of broad experience in all R&D related areas of new product
`realization, from concept phase to market readiness. His specific expertise encompasses design
`of surgical instruments and techniques, as well as biomechanics, engineering biomaterials, and
`preclinical testing strategy. Dr. Ochoa specializes in the major aspects of medical device
`specific product development: technology forecasting, design control, risk analysis,
`biomaterials selection, verification/validation testing, failure analysis and intellectual property
`issues related to strategy, validity and infringement, post market surveillance, and recalls and
`forensic failure analysis of medical devices. He has served as an expert witness in product
`liability cases.
`
`Dr. Ochoa’s particular research interests are in the areas of the mechanics of cardiovascular and
`orthopaedic biological tissues and the tissue/implant interface; medical device durability and
`wear; kinematics and kinetics of human joints; experimental and finite element analysis used to
`characterize the mechanical behavior of biological tissues and reconstructive devices for
`orthopedic, spinal surgery and cardiovascular interventions; coatings for enhanced implant
`fixation and prevention of implant loosening; image guided surgical techniques, computer aided
`surgical instruments and telemetric medical devices; intelligent implantable medical devices,
`biosensors and drug/device combination medical devices.
`
`Prior to joining Exponent, Dr. Ochoa was Chief Technology Officer at Archus Orthopaedics, a
`privately held medical device start-up company. Before that, he spent 13 years at DePuy
`Orthopaedics, a division of Johnson & Johnson, in various roles of increasing responsibility
`within R&D including Vice President of R&D. His activities and responsibilities included new
`product development; customer needs analysis and support, M&A due diligence and integration,
`intellectual property analysis, and litigation support. Dr. Ochoa is an Affiliate Associate
`Professor in the Mechanical Engineering Department at the University of Washington.
`
`Academic Credentials and Professional Honors
`
`Ph.D., Mechanical Engineering, Purdue University, 1991
`M.S., Mechanical Engineering, Purdue University, 1987
`Professional Degree, Mechanical Engineering, Missouri University of Science and Technology, 2005
`B.S., Mechanical Engineering, Missouri University of Science and Technology (cum laude), 1985
`
`Pi Tau Sigma; Phi Eta Sigma; Distinguished Engineering Alumnus, Purdue University, 2009;
`Best Scientific Paper, Awarded by the Spine Arthroplasty Society, 2008; Academy of
`Mechanical and Aerospace Engineers – Missouri University of Science and Technology, 2005;
`10/14
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`JTX-046
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`Outstanding Mechanical Engineer, Purdue University, 2002; Clinical Biomechanics Best Paper
`Award, Awarded by European Society of Biomechanics, 1998; Johnson & Johnson Professional
`Achievement Award, 1995
`
`Licenses and Certifications
`
`Licensed Professional Mechanical Engineer, California, #36186
`Licensed Professional Mechanical Engineer, Massachusetts, #40846
`Licensed Professional Mechanical Engineer, Washington, #40751
`Licensed Professional Mechanical Engineer, New York, #092609
`
`Languages
`
`Spanish
`
`Patents
`
`Patent 8,221,461: Crossbar Spinal Prosthesis Having a Modular Design and Systems for
`Treating Spinal Pathologies, issued July 17, 2012 (with M.K. Kuiper, D. Yager, L. Tokish, Jr.,
`D.M. Rosler, M.A. Reiley, M.J. Funk, S.L. Rogers, C.R. Ralph, M.T. Charbonneau, R.J.
`Broman, and T.J. McLeer).
`
`Patents 6,866,685 and 6,660,040: Prosthetic Joints Having Reduced Area Bearing Surfaces and
`Application Thereof to a Range of Sizes of Prosthetic Joints, issued March 15, 2005 and
`December 9, 2003 (with F. Chan).
`
`Patent 6,206,929: Bipolar Hip Prosthesis with Locking Head, issued March 27, 2001 (with
`F. Khalili).
`
`Patent 6,139,584: Proximal Femoral Sleeve for a Revision Hip Prosthesis, issued October, 31,
`2000 (with F. Khalili).
`
`Patent 6,019,765: Morsellized Bone Allograft Applicator Device, Issued February 1, 2000
`(with T. Thornhill, W.H. Kennefick, and E. Larson).
`
`Patent 5,935,172: Prosthesis With Variable Fit and Strain Distribution, issued August 10, 1999
`(with M.J. O’Neil).
`
`Patent 5,871,549: Femoral Stem with Reduced Coefficient of Friction with Respect to Bone
`Cement, issued February 16, 1999 (with C.M. Jayashankar and F.D. Matthews).
`
`Patents 5,868,747 and 5,716,358: Directional Bone Fixation Device, issued February 9, 1999
`and February 10, 1998 (with L.L. Rogers).
`
`Patent 5,871,546: Femoral Component Condyle Design for Knee Prosthesis, issued February
`16, 1999 (with D.P. Colleran, S.M. Gabriel, and R.E. Sommerich).
`Jorge A. Ochoa, Ph.D., P.E.
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`Patent 5,609,643: Knee Joint Prostheses, issued March 11, 1997(with D.P. Colleran and R.E.
`Sommerich).
`
`Publications
`
`Farner S, Malkani A, Lau E, Day J, Ochoa J, Ong K. Outcomes and cost of care for patients
`with distal radius fractures. Orthopedics Sep 1 2014; 37(10):e866–878.
`
`Ong KL, Auerbach JD, Lau E, Schmier J, Ochoa JA. Perioperative outcomes, complications,
`and costs associated with lumbar spinal fusion in older patients with spinal stenosis and
`spondylolisthesis. Neurosurg Focus Jun 2014; 36(6):E5.
`
`Sanders AP, Tibbitts IB, Kakarla D, et al. Contact-coupled impact of slender rods: Analysis
`and experimental validation. Experimental Mechanics 2013/08/10 2013:1–12.
`
`Prisco MR, Ochoa JA, Yardimci AM. Predictions of vacuum loss of evacuated vials from
`initial air leak rates. J Pharm Sci Aug 2013; 102(8):2730–2737.
`
`Lovald ST, Topp SG, Ochoa JA, Gaball CW. Biomechanics of the monopedicle skin flap.
`Otolaryngol Head Neck Surg. Dec 2013;149(6):858-864.
`
`Greenspon AJ, Patel J, Lau E, Ochoa JA, Frisch DE, Ho RT, Pavri BB, Kurtz SM. Trends in
`permanent pacemaker implantation in the United States 1993–2009: Increasing complexity of
`patients and procedures. J Am Coll Cardiol 2012; 59(13s1):E703–E703.
`
`Sjovold SG, Zhu Q, Bowden A, Larson CR, de Bakker PM, Villarraga ML, Ochoa JA, Rosler
`DM, Cripton PA. Biomechanical evaluation of the Total Facet Arthroplasty System®
`(TFAS ®): Loading as compared to a rigid posterior instrumentation system. Eur Spine J 2012
`Aug; 21(8):1660–1673.
`
`Sanders A, Tibbitts I, Kakarla D, Siskey S, Ochoa J, Ong K, Brannon R. Contact mechanics of
`impacting slender rods: Measurement and analysis. 2011 SEM Annual Conference on
`Experimental and Applied Mechanics, Springer New York, pp. 229–236, Uncasville, CT, June
`13–16, 2011.
`
`Greenspon AJ, Patel JD, Lau E, et al. 16-year trends in the infection burden for pacemakers and
`implantable cardioverter-defibrillators in the United States 1993 to 2008. Journal of the
`American College of Cardiology 2011 Aug; 58(10):1001–1006.
`
`Gornet MF, Chan FW, Coleman JC, Murrell B, Nockels RP, Taylor BA, Lanman TH, Ochoa
`JA. Biomechanical assessment of a PEEK rod system for semi-rigid fixation of lumbar fusion
`constructs. Journal of Biomechanical Engineering 2011 Aug; 133(8):081009:1:12.
`
`Greenspon AJ, Patel JD, Lau E, Ochoa JA, Frisch D, Ho RT, Pavri BB, Kurtz SM. Sixteen year
`trends in the infection burden for pacemakers and implantable cardioverter-defibrillators in the
`Jorge A. Ochoa, Ph.D., P.E.
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`United States: 1993–2008. Journal of the American College of Cardiology 2011; 58(10):1001–
`1006.
`
`Kurtz SM, Lau E, Ochoa JA, Shkolnikov Y, Pavri BB, Ho RT, Frisch D, Greenspon AJ.
`Implantation trends and patient profiles for pacemakers and implantable cardioverter
`defibrillators in the United States: 1993–2006. Pacing and Clinical Electrophysiology 2010
`Jan.
`
`Voronov LI, Havey RM, Rosler DM, Sjovold SG, Rogers SL, Carandang G, Ochoa JA, Yuan H,
`Webb S, Patwardhan AG. L5 – S1 segmental kinematics after facet arthroplasty. SAS Journal
`2009; 3(2). http://sasjournal.com/v2/content/l5-%E2%80%93-s1-segmental-kinematics-after-
`facet-arthroplasty.
`
`Phillips FM, Tzermiadianos MN, Voronov LI, Havey RM, Carandang G, Renner SM, Rosler
`DM, Ochoa JA, Patwardhan AG. Effect of the Total Facet Arthroplasty System after complete
`laminectomy-facetectomy on the biomechanics of implanted and adjacent segments. Spine
`Journal 2009 Jan; 9(1):96–102.
`
`Bowden AE, Guerin HL, Villarraga ML, Patwardhan A, Ochoa JA. Quality of motion
`considerations in numerical analysis of motion restoring implants. Clinical Biomechanics 2008
`Jun; 23(5):536–544.
`
`Niu Q, Chi X, Leu MC, Ochoa J. Image processing, geometric modeling and data management
`for development of a virtual bone surgery system. Journal of Computer Aided Surgery 2008
`Jan; 13(1):30–40.
`
`Komistek RD, Kane T, Mahfouz M, Ochoa JA, Dennis DA. Knee mechanics: A review of past
`and present techniques to determine in vivo loads. Journal of Biomechanics 2005 Feb;
`38(2):215–228.
`
`Dennis DA, Komistek RD, Ochoa JA, Haas BD, Hammill C. In vivo comparison of hip
`separation after metal-on-metal or metal-on-polyethylene THA. Journal of Bone and Joint
`Surgery 2002 Oct; 84(10):1836–1841.
`
`Kurtz SM, Srivastav S, Dwyer K, Ochoa J, Brown S. Analysis of the stem-sleeve interface in a
`modular titanium alloy femoral component for total hip replacement, in functional biomaterials.
`Trans Tech Publications, Switzerland. Katsube N, Soboyejo WO, Sacks M (eds), pp. 41–68,
`2001.
`
`Dennis DA, Komistek RD, Northcut EJ, Ochoa JA, Ritchie A. In vivo determination of hip
`joint separation and the forces generated due to impact loading conditions. Journal of
`Biomechanics 2001 Apr; 34(5):623–629.
`
`Kurtz SM, Ochoa JA, Hovey CB, White CV. Simulation of initial frontside and backside wear
`rates in a modular acetabular component with multiple screw holes. Journal of Biomechanics
`1999 Aug; 32(9):967–976.
`Jorge A. Ochoa, Ph.D., P.E.
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`
`Kurtz SM, Ochoa JA, White CV, Srivastav S, Cournoyer J. Backside nonconformity and
`locking restraints affect liner/shell load transfer mechanisms and relative motion in modular
`acetabular components for total hip replacement. Journal of Biomechanics 1998 May; 31:431–
`437.
`
`Ochoa JA, Sanders AP, Kiesler TW, Heck DA, Toombs JP, Brandt KD, Hillberry BM. In vivo
`observations of hydraulic stiffening in the canine femoral head. Journal of Biomechanics
`Engineering 1997 Feb; 119:103–108.
`
`Wilson SF, Ochoa JA, Rogers LL, Lancaster RL, Ritchie A. Finite element analysis in the
`characterization of an absorbable cement restrictor. Journal of Engineering in Medicine,
`IMechEng 1995; 209:163–167.
`
`Ochoa JA, Sanders AP, Heck DA, Hillberry BM. Stiffening of the proximal femur due to
`intertrabecular fluid and intraosseous pressure. Journal of Biomechanical Engineering 1991;
`113(3):259–262.
`
`Ochoa JA, Heck DA, Hillberry BM. The effect of intertrabecular fluid on femoral head
`mechanics. Journal of Rheumatology 1991; 18(4):580–584.
`
`Scientific Exhibits
`
`Mahfouz MR, Anderle M, Bajares G, Pérez Oliva A, Tokish LJ, Ochoa JA, Komistek RD,
`Zingde S. In vivo kinematics of the Total Facet Arthroplasty System (TFAS). 75th AAOS
`Scientific Exhibit SE61, Orlando, FL, San Francisco, CA, March 2008.
`
`Dennis DA, Komistek RD, Northcut EJ, Kane TR, Rullkoetter PJ, Ochoa JA, Stiehl JB,
`Hammill CD, Walker SA. Determination of in vivo Total Hip Arthroplasty (THA) kinematics,
`kinetics and stresses using fluoroscopy and mathematical modeling. 67th AAOS Scientific
`Exhibit, Orlando, FL, March 2000.
`
`Northcut EJ, Komistek RD, Dennis DA, Ochoa JA, Ritchie A. Impulse loading exhibited at the
`implanted hip during active joint separation. 66th AAOS Scientific Exhibit, Anaheim, CA,
`February 1999.
`
`Komistek RD, Dennis DA, Northcut EJ, Ochoa JA, Ritchie A. In vivo determination of hip
`joint separation and the forces generated due to impact loading conditions. AAOS Scientific
`Exhibit, New Orleans, LA, March 1998.
`
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`Jorge A. Ochoa, Ph.D., P.E.
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`Conference Papers and Abstracts
`
`Syamal MN, Lovald SL, Ochoa JA, Ghanem TA. Comparative finite-element analysis for
`defect reconstruction with rhomboid flaps, SP108, AAO-HNSF Annual Meeting, Orlando, FL,
`September 21–24, 2014,
`
`Farner S, Malkani AL, Lau E, Day J, Ochoa JA, Ong K. Treatment patterns, outcomes, and cost
`of care for distal radius fracture patients in the Medicare population. Paper No. 606, 80th
`Annual Meeting of the American Academy of Orthopaedic Surgeons, Chicago, IL, March 19–
`23, 2013.
`
`Syamal MN, Lovald ST, Ochoa JA, Gaball CW. Comparative finite element analysis for defect
`reconstruction with local flaps. The Triological Society 2014 Combined Sections Meeting ,
`Miami Beach, FL, January 10–12, 2014. Middle Section Joseph Ogura, MD – Research Award.
`
`Patel J, Ong K, Watson W, Kuehn C, Ochoa JA. Trends in revascularization and mortality for
`BMS and DES coronary stenting procedures: A Medicare study of 156,300 patients. Poster No.
`659, Transcatheter Cardiovascular Therapeutics (TCT) Conference, Miami, FL, October 22–26,
`2012.
`
`Patel J, Ong K, Watson W, Helmus M, Kuehn C, Ochoa JA. Historical trends in outcomes
`following aortic and mitral heart valve replacement procedures: A population-based study of
`29,582 Medicare patients from 1997 to 2009. Poster No. 877 (Top 25 Poster), Transcatheter
`Cardiovascular Therapeutics (TCT) Conference, Miami, FL, October 22–26, 2012.
`
`Auerbach JD, Ong KL, Lau E, Ochoa JA, Schmier J, Zigler JD. Perioperative outcomes,
`complications, and costs associated with lumbar spinal fusion in older patients with spinal
`stenosis and spondylolisthesis: Analysis of the United States Medicare claims database. NASS
`27th Annual Meeting, Dallas, TX, October 24–27, 2012.
`
`Auerbach JD, Ong KL, Lau E, Ochoa JA, Schmier J, Zigler JD. Cost-effectiveness of
`interlaminar stabilization compared with instrumented posterior spinal fusion for spinal stenosis
`and spondylolisthesis. NASS 27th Annual Meeting, Dallas, TX, October 24–27, 2012.
`
`Kuehn CM, Watson H, Ong KL, Mohamed M, Ochoa JA, Fryzek J. Descriptive epidemiology
`of medical device use among patients with breast, lung or prostate cancer in the national
`inpatient sample. ISPE’s 28th ICPE: International Conference on Pharmacoepidemiology &
`Therapeutic Risk Management, Barcelona, Spain, August 22–26, 2012.
`
`Auerbach JD, Ong KL, Lau E, Ochoa J, Schmier JK, Zigler JD. Perioperative outcomes,
`complications, and costs associated with lumbar spinal fusion in older patients with spinal
`stenosis and spondylolisthesis: analysis of the United States Medicare claims database.
`International Society of Pharmacoeconomics and Outcomes Research 17th Annual International
`Meeting, Washington, DC, June 2–6, 2012.
`
`
`Jorge A. Ochoa, Ph.D., P.E.
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`Ong KL, Patel JP, Watson H, Helmus M, Kuehn CM, Ochoa JA. Historical trends in outcomes
`following aortic and mitral heart valve replacement procedures: A population-based study of
`29,582 Medicare patients from 1997 to 2009. Presentation No. P20, Quality of Care and
`Outcomes Research in Cardiovascular Disease and Stroke (QCOR), Atlanta, GA, May 9–11,
`2012.
`
`Auerbach JD, Ong KL, Lau E, Ochoa J, Schmier J, Zigler JD. Perioperative outcomes,
`complications, and costs associated with lumbar spinal fusion in older patients with spinal
`stenosis and spondylolisthesis: Analysis of the United States Medicare claims database. Paper
`No. 516, International Society for the Advancement of Spine Surgery, Barcelona, Spain, March
`20–23, 2012.
`
`Ong K, Patel J, Watson H, Helmus M, Kuehn CM, Ochoa JA. Historical trends in outcomes
`following aortic and mitral heart valve replacement procedures: A population-based study of
`29,582 Medicare patients from 1997 to 2009. 4th Annual Joint Scientific Session of the Heart
`Valve Society of America and Society for Heart Valve Disease, Valves in the Heart of the Big
`Apple VII: Evaluation & Management of Valvular Heart Diseases, New York, NY, April 12–
`14, 2012.
`
`Ong K, Watson H, Patel JD, Kuehn CM, Ochoa JA. Population-based analysis of the
`epidemiology and reintervention rates of cardiovascular stenting procedures: A Medicare study.
`TCT 23rd Annual Scientific Symposium, San Francisco, CA, November 7–11, 2011.
`
`Hanzlik JA, Patel JD, Kurtz SM, Horn QC, Shkolnikov YP, Ochoa JA, Pavri BB, Greenspon
`AJ. Why are implantable cardioverter-defibrillators and pacemakers being revised today?
`MPMD 2011 – Fatigue Life and Durability of Medical Devices Session I, Minneapolis, MN,
`August 8–10, 2011.
`
`Kakarla D, Sanders AP, Siskey S, Ong K, Ames N, Ochoa JA, Brannon RM. Poster No. 2076.
`Modeling, testing, and analysis of impulse response of femoral head reduction in ceramic hip
`prostheses. 58th Annual Meeting Orthopaedic Research Society, P-2076, San Francisco, CA,
`February 4–7, 2012.
`
`Ong, KL, Auerbach, JD, Lau E, Ochoa JA, Schmier J, Zigler JD. Perioperative outcomes,
`complications, and costs associated with lumbar spinal fusion in older patients with spinal
`stenosis and spondylolisthesis: Analysis of the United States Medicare claims database. ISASS
`12, No. A-425-0000-00516, Barcelona, Spain, March 20–23, 2012.
`
`Hanzlik J, Patel J, Ochoa JA, Pavri B, Greenspon A, Kurtz S. Retrieval analysis of implantable
`pacemakers and cardioverter-defibrillators. Biomedical Engineering Society, 2011 Annual
`Meeting, Hartford, CT, October 12–15, 2011.
`
`Ong KL, Watson H, Patel JD, Kuehn CM, Ochoa JA. Bare-metal and drug-eluting coronary
`and peripheral vascular stent procedures: Utilization in the U.S. 3rd North American Congress
`of Epidemiology, Montreal, Quebec, Canada, June 21–24, 2011.
`
`Jorge A. Ochoa, Ph.D., P.E.
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`Sanders AP, Tibbitts IB, Kakarla D, Siskey SD, Ochoa JA, Ong KL, Brannon RM. Contact
`mechanics of impacting slender rods: Measurement and analysis. Paper No. 274, Society for
`Experimental Mechanics Annual Conference & Exposition on Experimental and Applied
`Mechanics, Uncasville, CT, June 13–16, 2011.
`
`Ong KL, Lau E, Patel JD, Ochoa JA. Epidemiology of heart valve repair and replacement
`procedures in the United States: A 15-year perspective. American Heart Association Quality of
`Care and Outcomes Research in Cardiovascular Disease and Stroke (QCOR), Washington,
`D.C., May 12–14, 2011.
`
`Ong KL, Watson H, Patel JD, Kuehn CM, Ochoa JA. Bare-metal and drug-eluting coronary
`and peripheral vascular stent procedures: Utilization in the United States. American Heart
`Association Quality of Care and Outcomes Research in Cardiovascular Disease and Stroke
`(QCOR), Washington, D.C., May 12–14, 2011.
`
`Hanzlik, J, Patel JD, Kurtz SM, Pavri BB, Greenspon AJ, Ochoa JA. Insights into cardiac
`pacemaker and defibrillator revision/upgrades. 37th Annual Northeast Bioengineering
`Conference, Rensselear Polytechnic Institute, Troy, NY, April 1–3, 2011.
`
`Patel JD, Kurtz SM, Lau E, Ochoa JA, Pavri BB, Ho R, Frisch DA, Greenspon AJ. Comparison
`of pacemaker versus ICD infection burden in the United States from 1993–2008. Paper No.
`AB21-1, Transactions of the 32nd Annual Scientific Sessions of the Heart Rhythm Society, San
`Francisco, CA, May 4–7, 2011.
`
`Ong K, Ianuzzi A, Lau E, Kurtz S, Ochoa J. Epidemiology and in-hospital complications
`associated with interspinous process decompression device procedures: The initial U.S.
`experience using national administrative data. 56th Annual Meeting Orthopaedic Research
`Society, P-428, San Francisco, CA, March 6–9, 2010.
`
`Kurtz SM, Lau E, Ochoa JA, Shkolnikov Y, Pavri BB, Ho RT, Frisch D, Greenspon AJ.
`Projections of pacemaker and ICD utilization in the US from 2010 to 2030. Paper No. AB06-5.
`Transactions of the 31st Annual Scientific Sessions of the Heart Rhythm Society, Denver, CO,
`May 12–15, 2010.
`
`Kurtz SM, Lau E, Ochoa JA, Pavri BB, Ho RT, Greenspon AJ. Complications and predictors of
`ICD outcomes. Paper No. AB28-1. Transactions of the 31st Annual Scientific Sessions of the
`Heart Rhythm Society, Denver, CO, May 12–15, 2010.
`
`Imsdahl SI, Ochoa JA, Ching RP. Kinematics of the lumbar facet joints and vertebral endplate.
`NW Biomechanics Symposium, ASB Northwest Regional Meeting, Pullman, WA, June 5–6,
`2008.
`
`Voronov LI, Havey RM, Rosler DM, Sjovold SG, Rogers SL, Carandang G, Ochoa JA,
`Patwardhan AG. Kinematics of facet arthroplasty: A comparison of L5-S1 and L3-L4 levels.
`Annual Meeting of EuroSpine/SpineWeek, Geneva, Switzerland, p. 185, May 26–31, 2008.
`
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`Voronov L, Havey R, Rosler D, Sjovold S, Rogers S, Carandang G, Ochoa JA, Patwardhan A.
`Kinematics of facet arthroplasty: A comparison of L5-S1 and L3-L4 levels. Spine Arthroplasty
`Summit 8, Miami, FL, May 6–9, 2008. Best Scientific Paper Award.
`
`Havey RM, Voronov LI, Carandang G, Rosler DM, Ochoa JA, Patwardhan AG. Biomechanics
`of adjacent segments after facet arthroplasty vs. fusion. Spine Arthroplasty Summit 8, p. 185,
`Miami, FL, May 6–9, 2008.
`
`Bowden AE, Guerin HL, Villarraga ML, Patwardhan AG, Ochoa JA. Higher order validation
`metrics are required when numerically modeling physiologic motion of the spine. 54th Annual
`Meeting Orthopaedic Research Society, P-1360, San Francisco, CA, March 2–5, 2008.
`
`Bowden AE, Guerin HL, Villarraga ML, Patwardhan AG, Ochoa JA. Effect of soft tissue
`mechanical properties on validated quality of motion of the spine. Philadelphia Spine Research
`Society, Philadelphia, PA, October 9, 2007.
`
`Vadapalli S. Ochoa JA, Rosler DM. Effect of facet arthroplasty on the biomechanics of the
`lumbar spine—A finite element study. American Society of Biomechanics, 2007 Annual
`Meeting, P1-9, Stanford, CA, August 22–25, 2007.
`
`Taber BJ, Ochoa JA, Storti D, Ching RP. Characterization of intact lumbar facet kinematics.
`NW Biomechanics Symposium, ASB Northwest Regional Meeting, Eugene, OR, May 18–19,
`2007.
`
`Phillips FM, Voronov LI, Tzermiadianos M, Havey RM, Carandang G, Rosler DM, Ochoa J,
`Patwardhan AG. Kinematic study of total facet arthroplasty after complete laminectomy-
`facetectomy. Proceedings, 21st Annual Mtg. of the North American Spine Society, Seattle, WA,
`September 26–30, 2006. The Spine Journal 2006; 6(5), Suppl. 1:137S.
`
`Phillips FM Voronov LI, Tzermiadianos M, Havey RM, Carandang G, Rosler DM, Ochoa J,
`Patwardhan AG. Kinematic study of total facet arthroplasty after complete laminectomy-
`facetectomy. The 13th International Meeting on Advanced Spine Techniques, Athens, Greece,
`July, 2006.
`
`Chi X, Leu MC, Ochoa JA. Modeling of Haptic rendering for virtual bone surgery. 2004
`ASME International Mechanical Engineering Congress and R&D Expo and Computers and
`Information in Engineering Conference, IMECE2004-59814, Anaheim, CA, November 13–19,
`2004.
`
`Peng X, Chi X, Ochoa JA, Leu MC. Bone surgery simulation with virtual reality. Proceedings,
`DETC’03 ASME 2003 Design Engineering Technical Conferences and Computers and
`Information in Engineering Conference, CIE-2003-43.Chicago, IL, September 2–6, 2003.
`
`Aram L, Lehman A, Lewis P, Render T, Ochoa J, Amirouche F, Gonzalez M. Investigation of
`cementless cup micromotion and stability after total hip arthroplasty. 4th World Congress of
`Biomechanics, p. 1076, Calgary, Alberta, Canada, August 2002.
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`Romero F, Amirouche F, Gonzalez M, Render T, Ochoa J. Investigation of stresses between the
`liner and the acetabular cup in total hip replacement implants. 4th World Congress of
`Biomechanics, p. 1089, Calgary, Alberta, Canada, August 2002.
`
`Dennis D, Komistek R, Northcut E, Ochoa J, Haas B. In vivo determination of hip joint
`separation in subjects having either a metal-on-metal or metal-on-polyethylene THA. 68th
`Annual Meeting American Academy of Orthopaedic Surgeons, San Francisco, CA, March 2001.
`
`Dennis D, Komistek R, Ochoa J, Northcut E, Hamill C. In vivo determination of femoral head
`loci pathways during gait in subjects having a metal-on-metal or metal-on-polyethylene THA.
`47th Annual Meeting Orthopaedic Research Society, San Francisco, CA, March 2001.
`
`Dennis D, Komistek R, Northcut E, Ochoa J, Hamill C. In vivo determination of hip joint
`separation in subjects having a metal-on-metal or metal-on-polyethylene THA. 47th Annual
`Meeting Orthopaedic Research Society, San Francisco, CA, March 2001.
`
`Dennis D, Haas B, Komistek R, Walker S, Ochoa J. Correlation of in vivo kinematics of total
`hip arthroplasty with polyethylene wear retrievals. 10th Annual Meeting of American
`Association of Hip and Knee Surgeons, Dallas, TX, November 2000.
`
`Dennis D, Komistek R, Ochoa J, Northcut E, Hammill C. In vivo determination of femoral
`head loci pathways during gait in subjects having a metal-on-metal or metal-on-polyethylene
`THA. 10th Annual Meeting of American Association of Hip and Knee Surgeons, Dallas, TX,
`November 2000.
`
`Komistek R, Kane T, Dennis D, Ochoa J, Stiehl J. Use of in vivo kinematic fluoroscopy data to
`determine lower extremity joint loads. European Society of Biomechanics, Dublin, Ireland,
`August 2000.
`
`Ochoa J, Komistek R, Dennis D, Northcut E, Hammill C. In vivo determination of femoral
`head loci pathways during gait in subjects having a metal-on-metal or metal-on-polyethylene
`THA. European Society of Biomechanics, Dublin, Ireland, August 2000.
`
`Ochoa J, Komistek R, Dennis D, Northcut E, Hammill C. In vivo determination of hip joint
`separation in subjects having a metal-on-metal or metal-on-polyethylene THA. European
`Society of Biomechanics, Dublin, Ireland, August 2000.
`
`Kurtz SM, Srivastav S, Dwyer K, Ochoa J, Brown S. Analysis of the stem-sleeve interface in a
`modular titanium alloy femoral component for total hip replacement. ASME 2000 Congress
`and Exposition, Symposium on Functional Biomaterials, Joint Replacement, Orlando, FL,
`November 7, 2000.
`
`Dennis D, Komistek R, Ochoa J, Northcut E. In-vivo determination of femoral head loci
`pathways during gait in subjects having either a metal-on -metal or metal-on-polyethylene total
`
`Jorge A. Ochoa, Ph.D., P.E.
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`hip arthroplasty. 113th Annual Meeting of the American Orthopaedic Association, Hot Springs,
`VA, June 2000.
`
`Dennis D, Komistek R, Ochoa J, Northcut E. In-vivo determination of hip joint separation in
`subjects having either a metal-on -metal or metal-on-polyethylene total hip arthroplasty. 113th
`Annual Meeting of the American Orthopaedic Association, Hot Springs, VA, June 2000.
`
`Ochoa J, Komistek R, Dennis D, Northcut E, Hammill C. In-vivo determination of hip joint
`separation in subjects having either a metal-on-metal or metal-on-polyethylene total hip
`arthroplasty. 11th International Conference on Mechanics in Medicine and Biology, Maui, HI,
`April 2000.
`
`Dennis D, Komistek R, Ochoa J, Northcut E, Hammill C. In-vivo determination of hip joint
`separation in subjects having either a metal-on-metal or metal-on-polyethylene THA.
`Transactions of the Orthopaedic Research Society, Vol. 25, p. 507, Orlando, FL, March 2000.
`
`Northcut EJ, Komistek RD, Dennis DA, Ochoa JA, Rullkoetter PJ. Impulse loading conditions
`modeled from in vivo joint separation. ISB, Calgary, Canada, August 1999.
`
`Northcut EJ, Komistek RD, Dennis DA, Ochoa JA, Ritchie A. Impulse loading exhibited at the
`implanted hip joint during active joint separation. SICOT, Sydney, Australia, April 1999.
`
`Northcut EJ, Komistek RD, Dennis DA, Ochoa JA. In vivo determination of hip joint
`separation: The potential creation of impulse loading conditions. SICOT, Sydney, Australia,
`April 1999.
`
`Northcut EJ, Komistek RD, Dennis DA, Ochoa JA, Ritchie A. Impulse loading exhibited at the
`implanted hip joint during active joint separation. AAOS Exhibit, 66th Annual Meeting,
`Anaheim, CA, February 1999.
`
`Kurtz SM, Ochoa JA, Hovey CB, White CV. Frontside vs. backside wear in an acetabular
`component with multiple screw holes. Transactions of the Orthopaedic Research Society,
`Vol 24, p. 54, Anaheim, CA, February 1999.
`
`Rullkoetter PJ, Ochoa JA, Hamilton JV, Chen PCY, Colwell CW, Jr, D’ Lima DD. Effect of
`loading rate on UHMWPE contact mechanics. Transactions of the Orthopaedic Research
`Society, Vol. 24, p. 826, Anaheim, CA, February 1999.
`
`Komistek RD, Dennis DA, Northcut EJ, Ochoa JA, Ritchie A. In vivo determination of normal,
`constrained and unconstrained THA kinematics. CORS, Hamamatsu City, Japan, 1998.
`
`Northcut EJ, Komistek RD, Dennis DA, Ochoa JA, Ritchie A. In vivo determination of normal,
`constrained and unconstrained THA kinematics. Proceedings, 3rd Comb. Mtg. ORS USA,
`Canada, Europe, and Japan, p. 68, September 1998.
`
`
`Jorge A. Ochoa, Ph.D., P.E.
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`Northcut EJ, Komistek RD, Dennis DA, Ochoa JA, Ritchie A. In vivo determination of normal,
`constrained and unconstrained THA kinematics. European Society Biomech, July 1998.
`Clinical Biomechanics Best Paper Award.
`
`Komistek RD, Dennis DA, Northcut EJ, Ochoa JA, Ritchie A. In vivo determination of hip
`joint separation and the forces generated due to impact loading conditions. Transactions of the
`Orthopaedic Research Society, Vol 23, p. 197, New Orleans, LA, March 1998.
`
`Kurtz SM, Ochoa JA, White C. Liner/shell load transfer mechanisms in a modular acetabular
`component for total hip replacement. In: Advances in Bioengineering 1997, ASME, pp.303–
`304, Atlanta, GA, November 1997.
`
`Komistek RD, Dennis DA, Northcut EJ, Ochoa JA, Ritchie A. In vivo determination of hip
`joint separation and the forces generated due to impact loading conditions. In: The Future of
`Technology in Arthroplasty. 10th Annual Symposium of ISTA, p. 167, San Diego, CA,
`September 1997.
`
`Kurtz SM, Ochoa JA, White C, Srivastav S, Cournoyer J. Effect of non-conformity and locking
`restraints on backside relative motion of a metal-backed acetabular component with a polar
`fenestration. Transactions of the Orthopaedic Research Society, Vol. 22, p. 312, San Francisco,
`CA, February 1997.
`
`Cournoyer JR, Ochoa JA, Kurtz SM. Relative motion at the backside of a metal-backed
`acetabular component under quasi-static and dynamic loading. Transactions of the Orthopaedic
`Research Society, Vol. 22, p. 839, San Francisco, CA, February 1997.
`
`Gibbon AJ, Hynes D, Wooster A, Ochoa JA. Stem geometry influences early femoral
`osteolysis in total hip replacement. Prog. British Orthop. Soc., p.23, Aberdeen, Scotland,
`September 1995.
`
`Ochoa JA, Hillberry BM. Experimental verification of hydraulic stiffening of cancellous bone.
`Proceedings, 2nd World Congress Biomech., Vol. 2, p.54, Amsterdam, The Netherlands, July
`1994.
`
`Ochoa JA, Hillberry BM. Modeling the hydraulic stiffening of cancellous bone. Proceedings,
`2nd World Congress Biomech., Vol. 2, p. 236, Amsterdam, The Netherlands, July 1994.
`
`Rogers LL, Wilson SF, Ochoa JA. Design and characterization of an absorbable cement
`restrictor. Transactions of the Society for Biomaterials, Vol. 19, Birmingham, Al, April 1993.
`
`Luo ZP, Ochoa