STEVEN MICHAEL KURTZ

Summary

Affiliation: Drexel University
Country: USA

Publications

  1. pmc Mechanical properties, oxidation, and clinical performance of retrieved highly cross-linked Crossfire liners after intermediate-term implantation
    Steven M Kurtz
    Implant Research Center, School of Biomedical Engineering, Science, and Health, Systems, Drexel University, Philadelphia, PA 19104, USA
    J Arthroplasty 25:614-23.e1-2. 2010
  2. pmc Do ceramic femoral heads reduce taper fretting corrosion in hip arthroplasty? A retrieval study
    Steven M Kurtz
    Implant Research Center, School of Biomedical Engineering, Science, and Heath Systems, Drexel University, 3401 Market Street, Suite 345, Philadelphia, PA, 19104, USA
    Clin Orthop Relat Res 471:3270-82. 2013
  3. ncbi request reprint 2006 Otto Aufranc Award Paper: significance of in vivo degradation for polyethylene in total hip arthroplasty
    Steven M Kurtz
    Implant Research Center, School of Biomedical Engineering, Science, and Health Systems and Department of Materials Engineering, Drexel University, Philadelphia, PA, USA
    Clin Orthop Relat Res 453:47-57. 2006
  4. doi request reprint The natural history of polyethylene oxidation in total disc replacement
    Steven M Kurtz
    Drexel University, Philadelphia, PA 19104, USA
    Spine (Phila Pa 1976) 34:2369-77. 2009
  5. ncbi request reprint In vivo degradation of polyethylene liners after gamma sterilization in air
    Steven M Kurtz
    Implant Research Center, School of Biomedical Engineering, Science, and Health Systems and Department of Materials Engineering, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USA
    J Bone Joint Surg Am 87:815-23. 2005
  6. pmc What is the correlation of in vivo wear and damage patterns with in vitro TDR motion response?
    Steven M Kurtz
    Implant Research Center, School of Biomedical Engineering, Science, Drexel University, Philadelphia, PA, USA
    Spine (Phila Pa 1976) 33:481-9. 2008
  7. doi request reprint Effect of nucleus replacement device properties on lumbar spine mechanics
    Steven A Rundell
    Exponent Inc, Philadelphia, PA 19104, USA
    Spine (Phila Pa 1976) 34:2022-32. 2009
  8. ncbi request reprint Analysis of a retrieved polyethylene total disc replacement component
    Steven M Kurtz
    Exponent, Inc, 3401 Market Street, Suite 300, Philadelphia, PA 19104, USA
    Spine J 5:344-50. 2005
  9. ncbi request reprint How have new designs and new types of joint replacement influenced wear behavior?
    Steven M Kurtz
    Exponent, Inc, Philadelphia, PA, USA
    J Am Acad Orthop Surg 16:S107-10. 2008
  10. ncbi request reprint Clinical, surface damage and oxidative performance of poly II tibial inserts after long-term implantation
    Francisco Medel
    Implant Research Center, School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA 19104, USA
    J Long Term Eff Med Implants 18:151-65. 2008

Collaborators

Detail Information

Publications49

  1. pmc Mechanical properties, oxidation, and clinical performance of retrieved highly cross-linked Crossfire liners after intermediate-term implantation
    Steven M Kurtz
    Implant Research Center, School of Biomedical Engineering, Science, and Health, Systems, Drexel University, Philadelphia, PA 19104, USA
    J Arthroplasty 25:614-23.e1-2. 2010
    ..Rim surface damage, however, was observed in only 3 (5%) of 60 cases. Retrieval analysis of the 3 rim-damaged liners did not reveal an association between surface damage and the reasons for revision...
  2. pmc Do ceramic femoral heads reduce taper fretting corrosion in hip arthroplasty? A retrieval study
    Steven M Kurtz
    Implant Research Center, School of Biomedical Engineering, Science, and Heath Systems, Drexel University, 3401 Market Street, Suite 345, Philadelphia, PA, 19104, USA
    Clin Orthop Relat Res 471:3270-82. 2013
    ..Previous studies regarding modular head-neck taper corrosion were largely based on cobalt chrome (CoCr) alloy femoral heads. Less is known about head-neck taper corrosion with ceramic femoral heads...
  3. ncbi request reprint 2006 Otto Aufranc Award Paper: significance of in vivo degradation for polyethylene in total hip arthroplasty
    Steven M Kurtz
    Implant Research Center, School of Biomedical Engineering, Science, and Health Systems and Department of Materials Engineering, Drexel University, Philadelphia, PA, USA
    Clin Orthop Relat Res 453:47-57. 2006
    ..We conclude that in vivo degradation should be included among the list of potential long-term failure modes for modular polyethylene components for total hip arthroplasty...
  4. doi request reprint The natural history of polyethylene oxidation in total disc replacement
    Steven M Kurtz
    Drexel University, Philadelphia, PA 19104, USA
    Spine (Phila Pa 1976) 34:2369-77. 2009
    ..Forty-eight CHARITE TDRs were retrieved from 41 patients after 7.8 years of average implantation. All implants were removed because of intractable back pain and/or facet degeneration. Three unimplanted implants served as controls...
  5. ncbi request reprint In vivo degradation of polyethylene liners after gamma sterilization in air
    Steven M Kurtz
    Implant Research Center, School of Biomedical Engineering, Science, and Health Systems and Department of Materials Engineering, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USA
    J Bone Joint Surg Am 87:815-23. 2005
    ..The purpose of this study was to quantify the extent to which the mechanical properties and oxidation of conventional polyethylene acetabular liners treated with gamma sterilization in air change in vivo...
  6. pmc What is the correlation of in vivo wear and damage patterns with in vitro TDR motion response?
    Steven M Kurtz
    Implant Research Center, School of Biomedical Engineering, Science, Drexel University, Philadelphia, PA, USA
    Spine (Phila Pa 1976) 33:481-9. 2008
    ..3 years average implantation. All implants were removed because of intractable back pain and/or facet degeneration. In parallel, 20 new implants were evaluated at L4-L5 and L5-S1 in an in vitro lumbar spine model...
  7. doi request reprint Effect of nucleus replacement device properties on lumbar spine mechanics
    Steven A Rundell
    Exponent Inc, Philadelphia, PA 19104, USA
    Spine (Phila Pa 1976) 34:2022-32. 2009
    ..A validated nonlinear three-dimensional finite element model of a single lumbar motion segment (L3-L4) was used to evaluate a range of moduli for ideally conforming nucleus replacement devices...
  8. ncbi request reprint Analysis of a retrieved polyethylene total disc replacement component
    Steven M Kurtz
    Exponent, Inc, 3401 Market Street, Suite 300, Philadelphia, PA 19104, USA
    Spine J 5:344-50. 2005
    ..Although total disc replacements have been performed in Europe since the 1980s, this type of surgery is still new in the United States. The clinical performance of polyethylene in total disc replacements is still not well understood...
  9. ncbi request reprint How have new designs and new types of joint replacement influenced wear behavior?
    Steven M Kurtz
    Exponent, Inc, Philadelphia, PA, USA
    J Am Acad Orthop Surg 16:S107-10. 2008
    ..Advances in these types of implants have the potential for major clinical impact in the coming decade, due to the large number of patients seeking treatment of knee arthritis as well as back pain, neck pain, and radiculopathy...
  10. ncbi request reprint Clinical, surface damage and oxidative performance of poly II tibial inserts after long-term implantation
    Francisco Medel
    Implant Research Center, School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA 19104, USA
    J Long Term Eff Med Implants 18:151-65. 2008
    ..This study provides improved understanding of well-consolidated Poly II long-term retrievals and also motivation to revisit carbon fiber-reinforced polymeric bearings for joint replacement in the twenty-first century...
  11. ncbi request reprint Polyethylene wear and rim fracture in total disc arthroplasty
    Steven M Kurtz
    Exponent, Inc, 3401 Market St, Suite 300, Philadelphia, PA 19104, USA
    Spine J 7:12-21. 2007
    ..Polyethylene (PE) has been used in total disc replacements (TDRs) in Europe since the 1980s. However, the extent of surface damage of PE, including rim fracture and wear, after long-term implantation remains poorly understood...
  12. doi request reprint Biomechanical modeling of acetabular component polyethylene stresses, fracture risk, and wear rate following press-fit implantation
    Kevin L Ong
    Exponent Inc, 3401 Market St, Suite 300, Philadelphia, Pennsylvania 19104, USA
    J Orthop Res 27:1467-72. 2009
    ..9 and 3.8 mm-thick liners, respectively. Although pinching increases liner stresses, polyethylene fracture is highly unlikely, and the volumetric wear rates are likely to be low compared to conventional polyethylene...
  13. ncbi request reprint Anisotropy and oxidative resistance of highly crosslinked UHMWPE after deformation processing by solid-state ram extrusion
    Steven M Kurtz
    Exponent, Inc, 3401 Market St, Suite 300, Philadelphia, PA 19104, USA
    Biomaterials 27:24-34. 2006
    ..The oxidative stability observed in ArComXL suggests that the deformation-processed material may be suitable for air-permeable packaging and gas sterilization, which has thus far been reserved for remelted highly crosslinked UHMWPE...
  14. doi request reprint Total disc replacement positioning affects facet contact forces and vertebral body strains
    Steven A Rundell
    Exponent Inc, Philadelphia, PA 19104, USA
    Spine (Phila Pa 1976) 33:2510-7. 2008
    ..The model was implanted with a fixed-bearing TDR (ProDisc-L) at 2 surgically relevant positions and exercised about the 3 anatomic axes. Facet forces, range of motion (RoM), and vertebral body strains were evaluated...
  15. pmc Wear pattern observations from TDR retrievals using autoregistration of voxel data
    Yakov P Shkolnikov
    Exponent, Inc, 3401 Market St, Suite 300, Philadelphia, Pennsylvania 19104, USA
    J Biomed Mater Res B Appl Biomater 94:312-7. 2010
    ....
  16. pmc Gamma inert sterilization: a solution to polyethylene oxidation?
    Francisco J Medel
    Implant Research Center, School of Biomedical Engineering, Science and Health Systems, Drexel University, 3401 Market Street, Suite 300, Philadelphia, PA 19104, USA
    J Bone Joint Surg Am 91:839-49. 2009
    ..In addition, the potential influence of the different sterilization processes on the wear performance of the polyethylene components was examined...
  17. ncbi request reprint Degradation of mechanical properties of UHMWPE acetabular liners following long-term implantation
    Steven M Kurtz
    Implant Research Center, School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania, USA
    J Arthroplasty 18:68-78. 2003
    ..The results of this study strongly support the hypothesis that the degradation of mechanical properties for the liners occurred during implantation...
  18. pmc On the assessment of oxidative and microstructural changes after in vivo degradation of historical UHMWPE knee components by means of vibrational spectroscopies and nanoindentation
    Francisco J Medel
    Implant Research Center, School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania 19104, USA
    J Biomed Mater Res A 89:530-8. 2009
    ..Furthermore, infrared spectroscopy alone appeared to provide excellent insight into the oxidation and crystallization state of the in vivo oxidized polyethylene...
  19. doi request reprint Biomechanical comparison of 2 proximally coated femoral stems: effects of stem length and surface finish
    Kevin L Ong
    Biomechanics Practice, Exponent, Inc, Philadelphia, Pennsylvania 19104, USA
    J Arthroplasty 24:819-24. 2009
    ..Increased pain incidence for short-stem patients may be related to decreased implant instability and increased interface relative motion...
  20. doi request reprint Accelerated aqueous aging simulation of in vivo oxidation for gamma-sterilized UHMWPE
    Steven M Kurtz
    Exponent, Inc, Philadelphia, Pennsylvania, USA
    J Biomed Mater Res B Appl Biomater 90:368-72. 2009
    ..However, even at 50 degrees C over a year of in vitro aqueous aging will be necessary to reproduce the oxidation levels observed in long-term implanted acetabular retrievals. (..
  21. doi request reprint Have contemporary hip resurfacing designs reached maturity? A review
    Kevin L Ong
    Exponent Incorporated, 3401 Market Street, Suite 300, Philadelphia, PA 19104, USA
    J Bone Joint Surg Am 90:81-8. 2008
    ..In addition, this review is based on an understanding of the causes of failure of revision hip resurfacing arthroplasty, which is essential to help guide research, implant design, and clinical decision-making...
  22. ncbi request reprint Can accelerated aqueous aging simulate in vivo oxidation of gamma-sterilized UHMWPE?
    Daniel C Mazzucco
    Exponent, Inc, Philadelphia, Pennsylvania 19104, USA
    J Biomed Mater Res B Appl Biomater 79:79-85. 2006
    ....
  23. pmc Mechanical properties of retrieved highly cross-linked crossfire liners after short-term implantation
    Steven M Kurtz
    Implant Research Center, School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, Pennsylvania, USA
    J Arthroplasty 20:840-9. 2005
    ..We conclude that the variability in polyethylene properties observed in this small study was not clinically significant for these short-term-implanted, annealed cross-linked liners...
  24. ncbi request reprint Future clinical and economic impact of revision total hip and knee arthroplasty
    Steven M Kurtz
    Exponent Incorporated, Philadelphia, PA 19104, USA
    J Bone Joint Surg Am 89:144-51. 2007
  25. pmc Distinct immunohistomorphologic changes in periprosthetic hip tissues from historical and highly crosslinked UHMWPE implant retrievals
    Ryan M Baxter
    Department of Biomedical Engineering, School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania 19104, USA
    J Biomed Mater Res A 95:68-78. 2010
    ....
  26. ncbi request reprint The biomechanical effects of kyphoplasty on treated and adjacent nontreated vertebral bodies
    Marta L Villarraga
    Exponent, Inc, 3401 Market Street, Suite 300, Philadelphia, PA 19104, USA
    J Spinal Disord Tech 18:84-91. 2005
    ..Therefore, subsequent adjacent level fractures may be related to the underlying etiology (weakening of the bone) rather than the surgical intervention...
  27. ncbi request reprint An in vitro model for fluid pressurization of screw holes in metal-backed total joint components
    Steven M Kurtz
    Exponent, Inc, Philadelphia, PA 19104, USA
    J Arthroplasty 20:932-8. 2005
    ....
  28. doi request reprint Role of surgical position on interface stress and initial bone remodeling stimulus around hip resurfacing arthroplasty
    Kevin L Ong
    Exponent, Inc, Philadelphia, Pennsylvania 19140, USA
    J Arthroplasty 24:1137-42. 2009
    ..These data show bone loading and interface fixation trends emanating from valgus and varus implant positions that will be of interest to practicing physicians...
  29. pmc Future young patient demand for primary and revision joint replacement: national projections from 2010 to 2030
    Steven M Kurtz
    Exponent Inc, Philadelphia, PA 19104, USA
    Clin Orthop Relat Res 467:2606-12. 2009
    ..Level of Evidence: Level II, prognostic study. See Guidelines for Authors for a complete description of levels of evidence...
  30. pmc PEEK biomaterials in trauma, orthopedic, and spinal implants
    Steven M Kurtz
    Exponent, Inc, 3401 Market Street, Suite 300, Philadelphia, PA 19104, USA
    Biomaterials 28:4845-69. 2007
    ..For mature fields, such as total joint replacements and fracture fixation implants, radiolucency is an attractive but not necessarily critical material feature...
  31. doi request reprint Effect of procedure duration on total hip arthroplasty and total knee arthroplasty survivorship in the United States Medicare population
    Kevin L Ong
    Exponent, Inc, Philadelphia, Pennsylvania 19104, USA
    J Arthroplasty 23:127-32. 2008
    ..Our findings support the general belief that longer procedures are associated with the greater probability of complications...
  32. pmc Prosthetic joint infection risk after TKA in the Medicare population
    Steven M Kurtz
    Exponent, Inc, 3401 Market Street, Suite 300, Philadelphia, PA 19104, USA
    Clin Orthop Relat Res 468:52-6. 2010
    ..LEVEL OF EVIDENCE: Level II, prognostic study. See Guidelines for Authors for a complete description of levels of evidence...
  33. doi request reprint Primary and revision arthroplasty surgery caseloads in the United States from 1990 to 2004
    Steven M Kurtz
    Exponent Inc, Philadelphia, Pennsylvania 19104, USA
    J Arthroplasty 24:195-203. 2009
    ..The revision caseload of surgeons has increased over time, particularly for surgeons with the highest caseloads...
  34. doi request reprint Infection burden for hip and knee arthroplasty in the United States
    Steven M Kurtz
    Exponent Inc, Philadelphia, Pennsylvania 19104, USA
    J Arthroplasty 23:984-91. 2008
    ..26% for knees compared to rural (0.61% for hips and 0.69% for knees) and urban-teaching hospitals (0.73% for hips and 0.77% for knees). We found an increasing number of joint arthroplasties being diagnosed with periprosthetic infection...
  35. doi request reprint Implantation trends and patient profiles for pacemakers and implantable cardioverter defibrillators in the United States: 1993-2006
    Steven M Kurtz
    Exponent, Inc, and Implant Research Center, School of Biomedical Engineering, Science, and Heath Systems, Drexel University, Philadelphia, Pennsylvania, USA
    Pacing Clin Electrophysiol 33:705-11. 2010
    ..We evaluated the national trends for the implantation of PMs and ICDs including the burden of device replacement...
  36. pmc Risk of subsequent revision after primary and revision total joint arthroplasty
    Kevin L Ong
    Exponent, Inc, 3401 Market Street, Suite 300, Philadelphia, PA 19104, USA
    Clin Orthop Relat Res 468:3070-6. 2010
    ..Understanding the relative risk of rerevision and risk factors can help identify patients at high risk who may require closer postsurgical care...
  37. doi request reprint Off-label use of bone morphogenetic proteins in the United States using administrative data
    Kevin L Ong
    Exponent Inc, Philadelphia, PA 19104, USA
    Spine (Phila Pa 1976) 35:1794-800. 2010
    ..Epidemiological study using national administrative data...
  38. pmc Complications and reoperations of the SB Charité lumbar disc prosthesis: experience in 75 patients
    Ilona M Punt
    Department of Orthopaedic Surgery, University Hospital Maastricht, Postbox 5800, 6202 AZ Maastricht, The Netherlands
    Eur Spine J 17:36-43. 2008
    ..Removal of the SB Charité artificial disc is feasible but with inherent risks. Removal of the disc prosthesis gives slightly better results than posterior fusion alone after a follow-up of at least 1 year...
  39. ncbi request reprint Polyethylene wear debris and long-term clinical failure of the Charité disc prosthesis: a study of 4 patients
    Andre van Ooij
    Department of Orthopaedic Surgery, University Hospital Maastricht, Maastricht, The Netherlands
    Spine (Phila Pa 1976) 32:223-9. 2007
    ..A clinical case series of 4 patients undergoing anterior lumbar revision due to failure of total disc replacement surgery...
  40. ncbi request reprint Oxidation and oxidation potential in contemporary packaging for polyethylene total joint replacement components
    Luigi Costa
    Department of I F M Chemistry and NIS Center of Excellence, University of Turin, Via Giuria 7, 10125 Italy
    J Biomed Mater Res B Appl Biomater 78:20-6. 2006
    ..To the authors' knowledge, this is the first study that relates elevated oxidation and hydroperoxide content in gamma-sterilized PE components to certain types of contemporary, polymeric barrier packaging...
  41. ncbi request reprint Large deformation compression induced crystallinity degradation of conventional and highly crosslinked UHMWPEs
    Michael C Sobieraj
    Department of Mechanical and Aerospace Engineering, Case Western Reserve University, 620 Glennan Building, Cleveland, OH, USA
    Biomaterials 26:6430-9. 2005
    ..The findings of this study support that microstructural evolution during compressive deformation is a function of UHMWPE formulation, as affected by irradiation and post-irradiation heat treatment...
  42. ncbi request reprint How do material properties influence wear and fracture mechanisms?
    Clare Rimnac
    Case Western Reserve University, Cleveland, OH, USA
    J Am Acad Orthop Surg 16:S94-100. 2008
    ..Mechanical tests as well as computational material and structural models should be developed to evaluate the combined effect of material and geometry (structure) on fracture resistance under clinically relevant loading conditions...
  43. ncbi request reprint What design factors influence wear behavior at the bearing surfaces in total joint replacements?
    Thomas D Brown
    Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA, USA
    J Am Acad Orthop Surg 16:S101-6. 2008
    ..However, untoward complexities occurring in vivo, such as impingement or third-body challenge, can appreciably compromise wear performance even for implants that are well-designed in terms of bearing surface stress minimization...
  44. ncbi request reprint Fatigue crack propagation resistance of virgin and highly crosslinked, thermally treated ultra-high molecular weight polyethylene
    Sara J Gencur
    Musculoskeletal Mechanics and Materials Laboratories, Department of Mechanical and Aerospace Engineering, Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH 44106 7222, USA
    Biomaterials 27:1550-7. 2006
    ..Scanning electron microscopy examination of the fracture surfaces demonstrated that the virgin treatment group failed in a more ductile manner than the two highly crosslinked treatment groups...
  45. ncbi request reprint How have wear testing and joint simulator studies helped to discriminate among materials and designs?
    Harry A McKellop
    Department of Orthopaedic Surgery, UCLA Orthopaedic Hospital, Los Angeles, CA, USA
    J Am Acad Orthop Surg 16:S111-9. 2008
    ....
  46. ncbi request reprint How have new sterilization techniques and new forms of polyethylene influenced wear in total joint replacement?
    Roy D Crowninshield
    Department of Orthopedic Surgery, Rush Medical College, Chicago, IL, USA
    J Am Acad Orthop Surg 16:S80-5. 2008
    ..Newer second-generation methods of cross-linking polyethylene include the use of vitamin E, which quenches free radicals and demonstrates promise in providing low wear and desirable mechanical properties...
  47. ncbi request reprint How do alternative bearing surfaces influence wear behavior?
    Ian C Clarke
    Peterson Research Center, Loma Linda University, Loma Linda, CA, USA
    J Am Acad Orthop Surg 16:S86-93. 2008
    ..Thus, the role of laboratory studies is to isolate relevant aspects of performance by cup design and to predict the risk-benefit ratios in patients requiring total hip replacement...
  48. ncbi request reprint The potential for bone loss in acetabular structures following THA
    Michael T Manley
    Stryker Orthopaedics, Mahwah, NJ, USA
    Clin Orthop Relat Res 453:246-53. 2006
    ..Radical changes in implant design may be necessary for long-term maintenance of supporting structures in the reconstructed acetabulum...
  49. doi request reprint Effect of volume on total hip arthroplasty revision rates in the United States Medicare population
    Michael Manley
    Homer Stryker Center for Orthopaedic Education, 325 Corporate Drive, Mahwah, NJ 07430, USA
    J Bone Joint Surg Am 90:2446-51. 2008
    ..We examined the association between hospital and surgeon procedure volume and total hip arthroplasty revision rates in the Medicare population at six months to eight years postoperatively...

Research Grants9

  1. MECHANISMS & PERFORMANCE OF TRACEABLE UHMWPE IMPLANTS
    Steven Kurtz; Fiscal Year: 2003
    ..The purpose of this proposed research is to examine the influence of mechanical degradation after implantation on the clinical performance of metal-backed acetabular components for total hip arthroplasty. ..
  2. Mechanics and Performance of Traceable UHMWPE Implants
    Steven Kurtz; Fiscal Year: 2007
    ....
  3. Mechanics and Performance of Traceable UHMWPE Implants
    Steven Kurtz; Fiscal Year: 2009
    ....
  4. Wear, Inflammation and Clinical Performance of Total Disc Replacement
    STEVEN MICHAEL KURTZ; Fiscal Year: 2010
    ..Thus, successful achievement of the proposed research will provide essential information on TDR implant performance and on clinical outcomes, which are needed for informed health care decisions. ..