Timothy Wright

Summary

Affiliation: Hospital for Special Surgery
Country: USA

Publications

  1. ncbi request reprint Polyethylene in knee arthroplasty: what is the future?
    Timothy M Wright
    Hospital for Special Surgery, New York, NY 10021, USA
    Clin Orthop Relat Res 440:141-8. 2005
  2. doi request reprint Current and novel approaches to treating chondral lesions
    Timothy M Wright
    Department of Biomechanics, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA
    J Bone Joint Surg Am 91:120-5. 2009
  3. doi request reprint Observations on retrieved glenoid components from total shoulder arthroplasty
    Shane J Nho
    Sports Medicine and Shoulder Service, Department of Orthopedic Surgery, Hospital for Special Surgery, Weill Medical College of Cornell University, New York, New York 10021, USA
    J Shoulder Elbow Surg 18:371-8. 2009
  4. doi request reprint The mechanical performance of cervical total disc replacements in vivo: prospective retrieval analysis of prodisc-C devices
    Darren R Lebl
    Hospital for Special Surgery, The Spine Care Institute, Spine and Scoliosis Surgery, New York, NY 10021, USA
    Spine (Phila Pa 1976) 37:2151-60. 2012
  5. ncbi request reprint Remelting of highly cross-linked polyethylene worn under laboratory conditions
    Adam M Lazzarini
    Biomechanics Laboratory, Hospital for Special Surgery, New York, NY 10021, USA
    Clin Orthop Relat Res 465:128-32. 2007
  6. ncbi request reprint The implications of constraint in lumbar total disc replacement
    Russel C Huang
    Spine Surgery Service, Hospital for Special Surgery, New York, New York, USA
    J Spinal Disord Tech 16:412-7. 2003
  7. ncbi request reprint Bearing surface design changes affect contact patterns in total knee arthroplasty
    Jocelyn M Cottrell
    Biomechanics Laboratory, Hospital for Special Surgery, New York, NY 10021, USA
    Clin Orthop Relat Res 464:127-31. 2007
  8. ncbi request reprint Impingement contributes to backside wear and screw-metallic shell fretting in modular acetabular cups
    Mordechai Kligman
    Laboratory for Biomedical Mechanics and Materials, Hospital for Special Surgery, New York, New York, USA
    J Arthroplasty 22:258-64. 2007
  9. doi request reprint Comparison of conforming and nonconforming retrieved glenoid components
    Shane J Nho
    Sports Medicine and Shoulder Surgery Service, Hospital for Special Surgery, Weill Medical College of Cornell University, New York, NY, USA
    J Shoulder Elbow Surg 17:914-20. 2008
  10. doi request reprint Retrieval analysis of failed constrained acetabular liners
    Steven N Shah
    Hip and Knee Service, Hospital for Special Surgery, New York, New York, USA
    J Arthroplasty 24:54-7. 2009

Research Grants

  1. Knee Implant Wear Evaluation-An Integrated Approach
    Timothy Wright; Fiscal Year: 2005
  2. Improving the performance of elbow reconstruction
    Timothy M Wright; Fiscal Year: 2010

Collaborators

Detail Information

Publications52

  1. ncbi request reprint Polyethylene in knee arthroplasty: what is the future?
    Timothy M Wright
    Hospital for Special Surgery, New York, NY 10021, USA
    Clin Orthop Relat Res 440:141-8. 2005
    ..A case can be made for and against these polyethylenes, but early clinical results in hip arthroplasty show significantly improved wear, raising the possibility of also improving wear performance in knee arthroplasties...
  2. doi request reprint Current and novel approaches to treating chondral lesions
    Timothy M Wright
    Department of Biomechanics, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA
    J Bone Joint Surg Am 91:120-5. 2009
    ..The challenge of meeting these requirements is difficult, but new forms of computational models and in vitro tests can aid in establishing performance and in rapidly screening possible solutions...
  3. doi request reprint Observations on retrieved glenoid components from total shoulder arthroplasty
    Shane J Nho
    Sports Medicine and Shoulder Service, Department of Orthopedic Surgery, Hospital for Special Surgery, Weill Medical College of Cornell University, New York, New York 10021, USA
    J Shoulder Elbow Surg 18:371-8. 2009
    ....
  4. doi request reprint The mechanical performance of cervical total disc replacements in vivo: prospective retrieval analysis of prodisc-C devices
    Darren R Lebl
    Hospital for Special Surgery, The Spine Care Institute, Spine and Scoliosis Surgery, New York, NY 10021, USA
    Spine (Phila Pa 1976) 37:2151-60. 2012
    ..Prospective retrieval analysis of Prodisc-C cervical total disc replacements (CTDRs) from 24 explanting surgeons during a 6-year period...
  5. ncbi request reprint Remelting of highly cross-linked polyethylene worn under laboratory conditions
    Adam M Lazzarini
    Biomechanics Laboratory, Hospital for Special Surgery, New York, NY 10021, USA
    Clin Orthop Relat Res 465:128-32. 2007
    ..Our experiments represent a severe wear case but demonstrate removal of material from the surface through measurable wear prevents the return of identifiable machining marks despite remelting...
  6. ncbi request reprint The implications of constraint in lumbar total disc replacement
    Russel C Huang
    Spine Surgery Service, Hospital for Special Surgery, New York, New York, USA
    J Spinal Disord Tech 16:412-7. 2003
    ..We hope this discussion will assist clinicians and researchers in the design, selection, and clinical comparison of present and future TDR implants...
  7. ncbi request reprint Bearing surface design changes affect contact patterns in total knee arthroplasty
    Jocelyn M Cottrell
    Biomechanics Laboratory, Hospital for Special Surgery, New York, NY 10021, USA
    Clin Orthop Relat Res 464:127-31. 2007
    ..Our observations confirm the considerable impact of small changes in conformity and suggest models predicting contact stresses adequately reflect in vivo performance...
  8. ncbi request reprint Impingement contributes to backside wear and screw-metallic shell fretting in modular acetabular cups
    Mordechai Kligman
    Laboratory for Biomedical Mechanics and Materials, Hospital for Special Surgery, New York, New York, USA
    J Arthroplasty 22:258-64. 2007
    ..Our results suggest that impingement in a modular acetabular component correlated with increased backside wear and screw-metallic shell corrosion and fretting...
  9. doi request reprint Comparison of conforming and nonconforming retrieved glenoid components
    Shane J Nho
    Sports Medicine and Shoulder Surgery Service, Hospital for Special Surgery, Weill Medical College of Cornell University, New York, NY, USA
    J Shoulder Elbow Surg 17:914-20. 2008
    ..05). Articular conformity contributes to differences observed from retrieved polyethylene glenoid components, which are consistent with differences in performance that may influence loosening...
  10. doi request reprint Retrieval analysis of failed constrained acetabular liners
    Steven N Shah
    Hip and Knee Service, Hospital for Special Surgery, New York, New York, USA
    J Arthroplasty 24:54-7. 2009
    ..No association was found between liner damage and clinical and radiographic variables...
  11. pmc Tibial post wear in posterior-stabilized knee replacements is design-dependent
    Bridgette D Furman
    Department of Biomechanics, Hospital for Special Surgery, New York, NY 10021, USA
    Clin Orthop Relat Res 466:2650-5. 2008
    ..These changes cannot occur in isolation, however, because changes in post placement and design also depend on their relation to the shape and location of the tibial bearing surfaces...
  12. ncbi request reprint Impingement of acetabular cups in a hip simulator: comparison of highly cross-linked and conventional polyethylene
    Keith G Holley
    Hospital for Special Surgery, Laboratory for Biomedical Mechanics and Materials, New York, USA
    J Arthroplasty 20:77-86. 2005
    ..Wear rates and damage of highly cross-linked polyethylene cups were significantly higher in an impingement wear test than in previous simulator studies...
  13. ncbi request reprint Mechanisms for pumping fluid through cementless acetabular components with holes
    William L Walter
    Hospital for Special Surgery, New York, New York, USA
    J Arthroplasty 20:1042-8. 2005
    ..Pistoning motion of the liner produced pressures 8 times higher than when no pistoning occurs. These pumping mechanisms could be mitigated by the use of acetabular components without holes...
  14. ncbi request reprint Use of instrumented pedicle screws to evaluate load sharing in posterior dynamic stabilization systems
    Kathleen Meyers
    Department of Biomechanics, Hospital for Special Surgery, 535 E 70th Street, New York, NY 10021, USA
    Spine J 8:926-32. 2008
    ..If the implant system distributes these loads more evenly, loads in the pedicle screws will be reduced, and screw loosening will be prevented...
  15. doi request reprint Validation of cartilage thickness calculations using indentation analysis
    Matthew F Koff
    Department of Radiology and Imaging, Hospital for Special Surgery, New York, NY 10021, USA
    J Biomech Eng 132:041007. 2010
    ..The accuracy of the measurements was comparable to previous cartilage thickness validation studies in literature. The results of this study will aid in validating a tool for clinical evaluation of in-vivo cartilage thickness...
  16. doi request reprint Evaluation of a porous polyurethane scaffold in a partial meniscal defect ovine model
    Suzanne A Maher
    Hospital for Special Surgery, 535 E 70th Street, New York, NY 10021, USA
    Arthroscopy 26:1510-9. 2010
    ..The objective of this study was to assess the performance of a degradable porous polyurethane scaffold in a partial meniscectomy ovine model...
  17. ncbi request reprint Comparison of early and delayed failed total shoulder arthroplasty
    Christopher K Kepler
    Sports Medicine and Shoulder Service, Department of Orthopaedic Surgery, Hospital for Special Surgery, 535 East 70th Street New York, NY 10021, USA
    Acta Orthop Belg 75:297-305. 2009
    ..40%). The Delayed group had higher damage scores for several damage modalities. Elderly age and osteoarthritis were significant factors that were associated with early failures after TSA...
  18. ncbi request reprint The mechanical behavior of locking compression plates compared with dynamic compression plates in a cadaver radius model
    Michael J Gardner
    Department of Orthopaedic Surgery, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA
    J Orthop Trauma 19:597-603. 2005
    ....
  19. pmc Role of parathyroid hormone in the mechanosensitivity of fracture healing
    Michael J Gardner
    Hospital for Special Surgery, 535 East 70th Street, New York, New York 10021, USA
    J Orthop Res 25:1474-80. 2007
    ..This finding may be of potential clinical utility when weight bearing is utilized to stimulate lower extremity fracture healing...
  20. ncbi request reprint Biomechanics of nonfusion implants
    Russel C Huang
    Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA
    Orthop Clin North Am 36:271-80. 2005
    ..Implant design issues can also markedly affect performance...
  21. doi request reprint A new technique to measure the dynamic contact pressures on the Tibial Plateau
    Jocelyn M Cottrell
    Department of Biomechanics, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA
    J Biomech 41:2324-9. 2008
    ..It is envisaged that the experimental model herein developed will allow for the screening of candidate materials prior to more expensive and time-consuming animal models...
  22. ncbi request reprint Mechanical performance of ceramic acetabular liners under impact conditions
    Suzanne A Maher
    Laboratory for Biomedical Mechanics and Materials, Hospital for Special Surgery, New York, New York 10021, USA
    J Arthroplasty 18:936-41. 2003
    ..The threshold force of 12 kN is large in comparison with estimated physiologic forces on the hip during falls or stumbling, suggesting that ceramic liner fracture is not a definite consequence of liner impact...
  23. ncbi request reprint Biomechanic comparison of the Teno Fix tendon repair device with the cruciate and modified Kessler techniques
    Scott W Wolfe
    Division of Hand and Upper Extremity Surgery, Hospital for Special Surgery, New York, NY, USA
    J Hand Surg Am 32:356-66. 2007
    ..To compare the mechanical behavior of a novel internal tendon repair device with commonly used 2-strand and 4-strand repair techniques for zone II flexor tendon lacerations...
  24. pmc High stress conditions do not increase wear of thin highly crosslinked UHMWPE
    Natalie H Kelly
    Department of Biomechanics, Hospital for Special Surgery, 535 E 70th Street, New York, NY 10021, USA
    Clin Orthop Relat Res 468:418-23. 2010
    ..Continued monitoring will be necessary to elucidate the clinical efficacy of these devices...
  25. doi request reprint Observations on retrieved humeral polyethylene components from reverse total shoulder arthroplasty
    Denis Nam
    Sports Medicine and Shoulder Service, Department of Orthopedic Surgery, Hospital for Special Surgery, Weill Medical College of Cornell University, New York, NY 10021, USA
    J Shoulder Elbow Surg 19:1003-12. 2010
    ....
  26. pmc In vivo cyclic axial compression affects bone healing in the mouse tibia
    Michael J Gardner
    Hospital for Special Surgery, New York, New York, USA
    J Orthop Res 24:1679-86. 2006
    ..As the loading parameters necessary to enhance fracture healing become refined, external compression may be used as a potent stimulus for treating fractures with decreased biological capacity...
  27. ncbi request reprint Stair ascent kinematics affect UHMWPE wear and damage in total knee replacements
    Jocelyn M Cottrell
    Laboratory for Biomedical Mechanics and Materials, Hospital for Special Surgery, New York, New York, USA
    J Biomed Mater Res B Appl Biomater 78:15-9. 2006
    ..The fact that even small bouts of an additional activity of daily living could markedly impact wear simulator results calls into question the usefulness of studies that rely solely on kinematics and load inputs assumed from level gait...
  28. ncbi request reprint Effect of crosslinking, remelting, and aging on UHMWPE damage in a linear experimental wear model
    Suzanne A Maher
    Department of Biomechanics, Hospital for Special Surgery, 535 East 70th Street, New York, New York 10021, USA
    J Orthop Res 25:849-57. 2007
    ..A low dose of irradiation followed by heat treatment has the same beneficial effects in terms of improved wear performance, but without the disadvantages of reduced fracture toughness found with higher doses of irradiation...
  29. doi request reprint Radiographic and histopathologic analysis of osteolysis after total shoulder arthroplasty
    Christopher K Kepler
    Sports Medicine and Shoulder Service, Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY 10021, USA
    J Shoulder Elbow Surg 19:588-95. 2010
    ..This study analyzed clinical, radiographic, and histologic data from failed total shoulder arthroplasties (TSAs) to determine factors associated with osteolysis...
  30. doi request reprint In vivo functional performance of failed Prodisc-L devices: retrieval analysis of lumbar total disc replacements
    Darren R Lebl
    Hospital for Special Surgery, The Spine Care Institute, New York, NY 10021, USA
    Spine (Phila Pa 1976) 37:E1209-17. 2012
    ..A retrieval analysis of wear modes and fixation of lumbar total disc replacements (TDRs). Explanted Prodisc-L TDRs were prospectively collected during a 7-year period (2005-2011) and analyzed...
  31. ncbi request reprint PFC knee replacement: osteolytic failures from extreme polyethylene degradation
    David Casey
    Hospital for Special Surgery, New York, NY 10021, USA
    Clin Orthop Relat Res 464:157-63. 2007
    ..However, they raise questions concerning the cellular reaction to the debris from PFC implants that could lead to a better general understanding of osteolysis...
  32. ncbi request reprint Use of an absorbable membrane to position biologically inductive materials in the periprosthetic space of cemented joints
    Gene R DiResta
    Orthopaedics Research Laboratory, Memorial Sloan Kettering Cancer Center, RRL 409, 430 E67th St, New York, NY 10021, USA
    J Biomech 39:833-43. 2006
    ..Aseptic loosening and lameness occurred within 12 months, quicker than the 30 months reported in a retrospective clinical review of canine hip arthroplasty...
  33. ncbi request reprint Impingement in total hip arthroplasty a study of retrieved acetabular components
    Won Yong Shon
    Department of Biochemical Mechanics and Materials, Hospital for Special Surgery, New York, NY 10021, USA
    J Arthroplasty 20:427-35. 2005
    ..Implant design, in particular head/neck ratio, can help reduce the prevalence of impingement...
  34. ncbi request reprint Failure at the taper lock of a modular stemmed femoral implant in revision knee arthroplasty. A report of two cases and a retrieval analysis
    Paul S Issack
    Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA
    J Bone Joint Surg Am 89:2271-4. 2007
  35. pmc An optical method for evaluation of geometric fidelity for anatomically shaped tissue-engineered constructs
    Jeffrey J Ballyns
    Department of Biomedical Engineering, Cornell University, Ithaca, New York, USA
    Tissue Eng Part C Methods 16:693-703. 2010
    ..This work shows the ability to generate and quantify anatomically shaped meniscal constructs of high geometric fidelity and lends insight into the relative geometric fidelities of several tissue engineering techniques...
  36. doi request reprint Superior versus anteroinferior plating of the clavicle revisited: a mechanical study
    George Partal
    Orthopaedic Trauma Service, Hospital for Special Surgery, New York, NY 10021, USA
    J Orthop Trauma 24:420-5. 2010
    ..This study was designed to compare bone-implant stiffness of two fixation techniques on a sawbone model of a clavicle fracture...
  37. pmc Abnormal mineral-matrix interactions are a significant contributor to fragility in oim/oim bone
    Elizabeth Miller
    Musculoskeletal Integrity Program, Research Division, Hospital for Special Surgery, 535 E 70th Street, New York, NY 10021, USA
    Calcif Tissue Int 81:206-14. 2007
    ....
  38. doi request reprint What Causes Unexplained Pain in Patients With Metal-on metal Hip Devices? A Retrieval, Histologic, and Imaging Analysis
    Danyal H Nawabi
    Adult Reconstruction and Joint Replacement Service, Department of Orthopaedic Surgery, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
    Clin Orthop Relat Res 472:543-54. 2014
    ..Adverse tissue reactions associated with metal-on-metal (MOM) hips are common in resurfacing and total hip arthroplasty (THA) designs. The etiology of these reactions in painful, well-positioned arthroplasties is inconsistently described...
  39. doi request reprint Humeral component retroversion in reverse total shoulder arthroplasty: a biomechanical study
    Lawrence V Gulotta
    Sports Medicine and Shoulder Service, Hospital for Special Surgery, New York, NY, USA
    J Shoulder Elbow Surg 21:1121-7. 2012
    ..Reverse total shoulder arthroplasty offers pain relief and functional improvement for patients with rotator cuff-deficient shoulders. The purpose of this study was to determine the optimal amount of humeral retroversion for this prosthesis...
  40. ncbi request reprint Late fiber metal shedding of the first and second-generation Harris Galante acetabular component. A report of 5 cases
    David J Mayman
    Hospital for Special Surgery, Weill Medical College, Cornell University, New York, New York 10021, USA
    J Arthroplasty 22:624-9. 2007
    ..Fiber metal separation may contribute to long-term loosening in the Harris Galante acetabular component...
  41. ncbi request reprint Lack of hormonal influences on mechanical properties of sheep knee ligaments
    Sabrina M Strickland
    Hospital for Special Surgery, New York, New York 10021, USA
    Am J Sports Med 31:210-5. 2003
    ..The number of anterior cruciate ligament injuries in female athletes exceeds that in male athletes at similar competitive levels. This difference has been attributed by some authors to hormone-mediated alteration in knee laxity in women...
  42. ncbi request reprint Biomechanical evaluation of an expandable nail for the fixation of midshaft fractures
    Suzanne A Maher
    Department of Biomechanics, Hospital for Special Surgery, New York, NY, USA
    J Trauma 63:103-7. 2007
    ..The objective of this study was to compare the torsional stability of diaphyseal long bone fractures fixed with either a Fixion nail (DiscOTech, Monroe Township, NJ) or a standard locked Zimmer M/DN locked nail (Zimmer, Warsaw, IN)...
  43. doi request reprint Image-guided tissue engineering of anatomically shaped implants via MRI and micro-CT using injection molding
    Jeffery J Ballyns
    Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York, USA
    Tissue Eng Part A 14:1195-202. 2008
    ....
  44. pmc Bone mass is preserved and cancellous architecture altered due to cyclic loading of the mouse tibia after orchidectomy
    J Christopher Fritton
    Field of Biomedical Engineering, Cornell University, Ithaca, New York, USA
    J Bone Miner Res 23:663-71. 2008
    ..In this study, we tested the hypothesis that cyclic mechanical loading of the mouse tibia inhibits orchidectomy (ORX)-associated cancellous bone loss...
  45. ncbi request reprint Late fatigue fracture of a modern cemented [corrected] cobalt chrome stem for total hip arthroplasty: a report of 10 cases
    Alejandro Gonzalez Della Valle
    Hospital for Special Surgery, New York, NY 10021, USA
    J Arthroplasty 20:1084-8. 2005
    ..In the presence of a spontaneous onset of thigh pain at intermediate follow-up in patients with this stem, particularly if associated with loss of calcar support, a fatigue fracture should be considered...
  46. ncbi request reprint A novel surface treatment for porous metallic implants that improves the rate of bony ongrowth
    Fintan J Shannon
    Laboratory for Biomedical Mechanics and Materials, Hospital for Special Surgery, 535 East 70th St, New York, New York 10021, USA
    J Biomed Mater Res A 86:857-64. 2008
    ..Where early implant fixation is important, the SAMP treatment provides a simple, cost-effective enhancement to bony integration of orthopaedic implants...
  47. ncbi request reprint Wear simulation of the ProDisc-L disc replacement using adaptive finite element analysis
    Jeremy J Rawlinson
    Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York 14853, USA
    J Neurosurg Spine 7:165-73. 2007
    ..The authors analyzed the wear potential of a ProDisc-L implant using an adaptive finite element (FE) technique in a computational simulation representing a physical wear test...
  48. ncbi request reprint Cancellous bone strains indicate efficacy of stem augmentation in constrained condylar knees
    Jeremy J Rawlinson
    Cornell University, Ithaca, NY 14850, USA
    Clin Orthop Relat Res 440:107-16. 2005
    ..Therefore, patient selection and proper sizing of the implant were identified as important factors in the analyses...
  49. pmc Stemmed implants improve stability in augmented constrained condylar knees
    Jeremy J Rawlinson
    Cornell University, Ithaca, NY, USA
    Clin Orthop Relat Res 466:2639-43. 2008
    ..The wedge carried more axial load compared to the primary implant due to its support on stiff metaphyseal bone...
  50. ncbi request reprint Retrieval, experimental, and computational assessment of the performance of total knee replacements
    Jeremy J Rawlinson
    Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York 14853, USA
    J Orthop Res 24:1384-94. 2006
    ..Combining these techniques strengthens the applicability of the computational simulation while highlighting the complementary approach of these methods for preclinical testing and assessing the link between material state and damage...
  51. pmc Pause insertions during cyclic in vivo loading affect bone healing
    Michael J Gardner
    Department of Orthopaedic Surgery, Harborview Medical Center, 325 9th Ave, Box 359798, Seattle, WA 98104, USA
    Clin Orthop Relat Res 466:1232-8. 2008
    ..At an early stage of fracture healing, pause-inserted loading led to more histologically advanced healing...
  52. ncbi request reprint The CXC chemokine murine monokine induced by IFN-gamma (CXC chemokine ligand 9) is made by APCs, targets lymphocytes including activated B cells, and supports antibody responses to a bacterial pathogen in vivo
    Matthew K Park
    Inflammation Biology Section, Laboratory of Clinical Investigation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
    J Immunol 169:1433-43. 2002
    ....

Research Grants4

  1. Knee Implant Wear Evaluation-An Integrated Approach
    Timothy Wright; Fiscal Year: 2005
    ..abstract_text> ..
  2. Improving the performance of elbow reconstruction
    Timothy M Wright; Fiscal Year: 2010
    ..Our goal is to explain the locations and mechanisms of failure, thereby suggesting solutions to improve the efficacy of this treatment. ..