J J Callaghan

Summary

Affiliation: University of Iowa
Country: USA

Publications

  1. ncbi request reprint Effects of acetabular component orientation on dislocation propensity for small-head-size total hip arthroplasty
    Mark E Nadzadi
    Department of Orthopaedic Surgery, Orthopaedic Biomechanics Laboratory, University of Iowa, 2181 Westlawn Building, Iowa City, IA 52242, USA
    Clin Biomech (Bristol, Avon) 17:32-40. 2002
  2. ncbi request reprint Problematic sites of third body embedment in polyethylene for total hip wear acceleration
    Hannah J Lundberg
    Department of Biomedical Engineering, University of Iowa, Iowa City, IA 52242, USA
    J Biomech 39:1208-16. 2006
  3. ncbi request reprint Total hip arthroplasty with a cemented, polished, collared femoral stem and a cementless acetabular component. A follow-up study at a minimum of ten years
    Daniel E Firestone
    Department of Orthopaedics, University of Iowa Health Care, 200 Hawkins Drive, Iowa City, IA 52242, USA
    J Bone Joint Surg Am 89:126-32. 2007
  4. doi request reprint Cementless total hip arthroplasty in patients fifty years of age or younger: a minimum ten-year follow-up
    Ryan K Takenaga
    Department of Orthopaedic Surgery, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, UIHC, 01029 JPP, Iowa City, IA 52242, USA
    J Bone Joint Surg Am 94:2153-9. 2012
  5. pmc Durability of a cruciate-retaining TKA with modular tibial trays at 20 years
    John J Callaghan
    University of Iowa Hospitals and Clinics, 200 Hawkins Drive, Iowa City, IA 52242, USA
    Clin Orthop Relat Res 471:109-17. 2013
  6. doi request reprint Revision with cementless acetabular components: a concise follow-up, at a minimum of twenty years, of previous reports
    Bryan N Trumm
    Department of Orthopaedics, University of Iowa Health Care, Iowa City, IA, USA
    J Bone Joint Surg Am 94:2001-4. 2012
  7. pmc Cementing acetabular liners into secure cementless shells for polyethylene wear provides durable mid-term fixation
    John J Callaghan
    University of Iowa, 200 Hawkins Drive, 01029 JPP, UIHC, Iowa City, IA 52242, USA
    Clin Orthop Relat Res 470:3142-7. 2012
  8. doi request reprint Cementless tibial fixation in TKA: not a second coming
    John J Callaghan
    University of Iowa, Iowa City, IA 52242, USA
    Orthopedics 33:655. 2010
  9. pmc Liner exchange and bone grafting: rare option to treat wear & lysis of stable TKAs
    John J Callaghan
    University of Iowa, 200 Hawkins Drive, UIHC, 01029 JPP, Iowa City, IA 52242, USA
    Clin Orthop Relat Res 469:154-9. 2011
  10. doi request reprint Cemented rotating-platform total knee replacement: a concise follow-up, at a minimum of twenty years, of a previous report
    John J Callaghan
    University of Iowa and VA Medical Center, 200 Hawkins Drive, UIHC, 01029 JPP, Iowa City, IA 52242, USA
    J Bone Joint Surg Am 92:1635-9. 2010

Detail Information

Publications95

  1. ncbi request reprint Effects of acetabular component orientation on dislocation propensity for small-head-size total hip arthroplasty
    Mark E Nadzadi
    Department of Orthopaedic Surgery, Orthopaedic Biomechanics Laboratory, University of Iowa, 2181 Westlawn Building, Iowa City, IA 52242, USA
    Clin Biomech (Bristol, Avon) 17:32-40. 2002
    ..Examine the role of surgical orientation of the acetabular cup on posterior dislocation propensity for small-head-size total hip arthroplasty...
  2. ncbi request reprint Problematic sites of third body embedment in polyethylene for total hip wear acceleration
    Hannah J Lundberg
    Department of Biomedical Engineering, University of Iowa, Iowa City, IA 52242, USA
    J Biomech 39:1208-16. 2006
    ..The data also showed that the supero-lateral aspect of the acetabular cup is consistently and by far the most problematic area for third body particle embedment...
  3. ncbi request reprint Total hip arthroplasty with a cemented, polished, collared femoral stem and a cementless acetabular component. A follow-up study at a minimum of ten years
    Daniel E Firestone
    Department of Orthopaedics, University of Iowa Health Care, 200 Hawkins Drive, Iowa City, IA 52242, USA
    J Bone Joint Surg Am 89:126-32. 2007
    ....
  4. doi request reprint Cementless total hip arthroplasty in patients fifty years of age or younger: a minimum ten-year follow-up
    Ryan K Takenaga
    Department of Orthopaedic Surgery, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, UIHC, 01029 JPP, Iowa City, IA 52242, USA
    J Bone Joint Surg Am 94:2153-9. 2012
    ..The purpose of this study was to evaluate the results of cementless total hip arthroplasty performed in a consecutive series of patients fifty years of age or younger who were followed for a minimum of ten years...
  5. pmc Durability of a cruciate-retaining TKA with modular tibial trays at 20 years
    John J Callaghan
    University of Iowa Hospitals and Clinics, 200 Hawkins Drive, Iowa City, IA 52242, USA
    Clin Orthop Relat Res 471:109-17. 2013
    ..Modular tibial trays have been utilized in TKA for more than 20 years. However, concerns have been raised about modular implants and it is unclear whether these devices are durable in the long term...
  6. doi request reprint Revision with cementless acetabular components: a concise follow-up, at a minimum of twenty years, of previous reports
    Bryan N Trumm
    Department of Orthopaedics, University of Iowa Health Care, Iowa City, IA, USA
    J Bone Joint Surg Am 94:2001-4. 2012
    ..7% (95% confidence interval, ± 8.8%) with radiographic evidence of loosening as the end point. The authors continue to use cementless acetabular fixation with screw augmentation for most revision total hip arthroplasty procedures...
  7. pmc Cementing acetabular liners into secure cementless shells for polyethylene wear provides durable mid-term fixation
    John J Callaghan
    University of Iowa, 200 Hawkins Drive, 01029 JPP, UIHC, Iowa City, IA 52242, USA
    Clin Orthop Relat Res 470:3142-7. 2012
    ..Scoring shells without screw holes or other texturing helped prevent failure at the shell-cement interface. However, it was unclear whether these practices caused durable constructs in patients...
  8. doi request reprint Cementless tibial fixation in TKA: not a second coming
    John J Callaghan
    University of Iowa, Iowa City, IA 52242, USA
    Orthopedics 33:655. 2010
    ..It is for these reasons that cement should remain the fixation of choice in TKA...
  9. pmc Liner exchange and bone grafting: rare option to treat wear & lysis of stable TKAs
    John J Callaghan
    University of Iowa, 200 Hawkins Drive, UIHC, 01029 JPP, Iowa City, IA 52242, USA
    Clin Orthop Relat Res 469:154-9. 2011
    ..However, liner exchange in the face of substantial lysis around TKA has been performed rarely with reports of failure rates of up to 25% at 3 year followup...
  10. doi request reprint Cemented rotating-platform total knee replacement: a concise follow-up, at a minimum of twenty years, of a previous report
    John J Callaghan
    University of Iowa and VA Medical Center, 200 Hawkins Drive, UIHC, 01029 JPP, Iowa City, IA 52242, USA
    J Bone Joint Surg Am 92:1635-9. 2010
    ..However, the prevalence of osteolysis continues to increase with a longer duration of follow-up in these patients...
  11. ncbi request reprint Internet promotion of MIS and CAOS in TKA By Knee Society members
    John J Callaghan
    Department of Orthopaedic Surgery, University of Iowa, Iowa City, IA 52242, USA
    Clin Orthop Relat Res 452:97-101. 2006
    ..Information was often indirectly associated with KS surgeons through institutional websites or hospital affiliations. Information indirectly associated with a surgeon may be mistaken as endorsing the procedure by a prospective patient...
  12. doi request reprint Survivorship of a Charnley total hip arthroplasty. A concise follow-up, at a minimum of thirty-five years, of previous reports
    John J Callaghan
    University of Iowa and VA Medical Center, 200 Hawkins Drive, UIHC, 01029 JPP, Iowa City, IA 52242, USA
    J Bone Joint Surg Am 91:2617-21. 2009
    ..This end result study should provide a benchmark for subsequent procedures and designs with the caveat that patient life expectancy will likely continue to increase and modern-design implants are being used in younger patients...
  13. pmc Clinical biomechanics of wear in total hip arthroplasty
    John J Callaghan
    Department of Orthopaedic Surgery, University of Iowa College of Medicine, Iowa City 52242, USA
    Iowa Orthop J 23:1-12. 2003
    ....
  14. ncbi request reprint Improved results using extensively coated THA stems at minimum 5-year followup
    John J Callaghan
    Department of Orthopaedics, University of Iowa Health Care, Iowa City, IA 52242, USA
    Clin Orthop Relat Res 453:91-6. 2006
    ..As expected with an extensively coated device there were fewer radiolucencies around the lower half of the prosthesis as well as less distal femoral lysis compared to the proximally coated stem...
  15. ncbi request reprint Charnley total hip arthroplasty in patients less than fifty years old. A twenty to twenty-five-year follow-up note
    J J Callaghan
    Department of Orthopaedic Surgery, University of Iowa College of Medicine, Iowa City 52242, USA
    J Bone Joint Surg Am 80:704-14. 1998
    ..The fixation of the femoral component was found to perform better than that of the acetabular component at twenty to twenty-five years after the procedure...
  16. ncbi request reprint Results of Charnley total hip arthroplasty at a minimum of thirty years. A concise follow-up of a previous report
    John J Callaghan
    Department of Orthopaedic Surgery, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, Iowa City, IA 52242, USA
    J Bone Joint Surg Am 86:690-5. 2004
    ....
  17. ncbi request reprint Periprosthetic fractures of the acetabulum
    J J Callaghan
    Professor, Department of Orthopaedic Surgery, University of Iowa College of Medicine, Iowa City, Iowa, USA
    Orthop Clin North Am 30:221-34. 1999
    ..This article outlines the classification and management of these fractures...
  18. ncbi request reprint Charnley total hip arthroplasty with cement. Minimum twenty-five-year follow-up
    J J Callaghan
    Iowa Methodist Medical Center, Des Moines, USA
    J Bone Joint Surg Am 82:487-97. 2000
    ..The purpose of this paper was to evaluate the long-term results of total hip arthroplasty...
  19. ncbi request reprint Cemented rotating-platform total knee replacement. A nine to twelve-year follow-up study
    J J Callaghan
    Iowa Methodist Hospital, Des Moines, USA
    J Bone Joint Surg Am 82:705-11. 2000
    ..The purpose of this study was to report the nine to twelve-year results of a consecutive series of patients who had a primary total knee replacement performed with this device...
  20. ncbi request reprint Symposium: introducing technology into orthopaedic practice. How should it be done?
    John J Callaghan
    Department of Orthopaedic Surgery, University of Iowa Hospitals and Clinics, 01069 JPP, 200 Hawkins Drive, Iowa City, IA 52242, USA
    J Bone Joint Surg Am 87:1146-58. 2005
  21. ncbi request reprint A constrained liner cemented into a secure cementless acetabular shell
    John J Callaghan
    Department of Orthopaedic Surgery, University of Iowa Health Care, 200 Hawkins Drive, Iowa City, IA 52242, USA
    J Bone Joint Surg Am 86:2206-11. 2004
    ..The purpose of this study was to evaluate the clinical and radiographic outcome of this technique with use of a tripolar constrained liner that was cemented into a well-fixed cementless acetabular shell...
  22. ncbi request reprint Cemented rotating-platform total knee replacement. a concise follow-up, at a minimum of fifteen years, of a previous report
    John J Callaghan
    Department of Orthopaedics and Rehabilitation, University of Iowa College of Medicine, 200 Hawkins Drive, Iowa City, IA 52242, USA
    J Bone Joint Surg Am 87:1995-8. 2005
    ..We concluded that the cemented LCS rotating-platform knee performed well, with durable clinical and radiographic results at a minimum follow-up of fifteen years...
  23. doi request reprint Total hip arthroplasty with cement and use of a collared matte-finish femoral component: nineteen to twenty-year follow-up
    John J Callaghan
    Department of Orthopaedics and Rehabilitation, University of Iowa Health Care, 200 Hawkins Drive, Iowa City, IA 52242, USA
    J Bone Joint Surg Am 90:299-306. 2008
    ..The purpose of this study was to evaluate the long-term results of the use of one such construct in arthroplasties performed by a single surgeon in a consecutive nonselected patient cohort...
  24. ncbi request reprint Association of third body embedment with rim damage in retrieved acetabular liners
    Hannah J Lundberg
    Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA 52242, USA
    Clin Orthop Relat Res 465:133-9. 2007
    ....
  25. ncbi request reprint Revision of a cemented acetabular component to a cementless acetabular component. A ten to fourteen-year follow-up study
    J E Templeton
    The University of Iowa College of Medicine, Iowa City, 52242, USA
    J Bone Joint Surg Am 83:1706-11. 2001
    ..CONCLUSION: After a minimum of ten years of follow-up, cementless acetabular fixation in revision hip arthroplasty had produced durable results that were markedly better than those reported for acetabular fixation with cement...
  26. ncbi request reprint Charnley total hip arthroplasty with use of improved cementing techniques: a minimum twenty-year follow-up study
    A S Klapach
    University of Iowa College of Medicine, 200 Hawkins Drive, Iowa City, IA 52242-1088, USA
    J Bone Joint Surg Am 83:1840-8. 2001
    ..In addition, the prevalence of loosening of the femoral component was low with use of either technique, a tribute to the Charnley flatback polished femoral component design...
  27. ncbi request reprint Impaction allografting with cement for extensive femoral bone loss in revision hip surgery: a 4- to 8-year follow-up study
    G B Fetzer
    Department of Orthopaedic Surgery, University of Iowa Health Care, Iowa City, Iowa 52242, USA
    J Arthroplasty 16:195-202. 2001
    ..The prevalence of periprosthetic fracture is a significant concern. This study shows durable results using the impaction allografting technique in cases of severe bone loss...
  28. ncbi request reprint How have alternative bearings (such as metal-on-metal, highly cross-linked polyethylene, and ceramic-on-ceramic) affected the prevention and treatment of osteolysis?
    John J Callaghan
    University of Iowa, Veterans Affairs Medical Center, Iowa City, IA, USA
    J Am Acad Orthop Surg 16:S33-8. 2008
    ..However, long-term data are presently unavailable; the future performance of these bearings awaits clinical validation...
  29. pmc Durability of second-generation extensively porous-coated stems in patients age 50 and younger
    Jennifer A Moyer
    University of Iowa, Iowa City, IA, USA
    Clin Orthop Relat Res 468:448-53. 2010
    ..Level of Evidence: Level IV, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence...
  30. ncbi request reprint Design factors influencing performance of constrained acetabular liners: finite element characterization
    Suzanne M Bouchard
    Orthopaedic Biomechanics Laboratory, Department of Orthopaedics and Rehabilitation, University of Iowa, 2181 Westlawn Bldg, Iowa City, IA 52242 1100, USA
    J Biomech 39:885-93. 2006
    ..9 to 13.6 mm increased assembly force by 506 N and increased the dislocation moment by over 3.5 N-m, whereas the influence of other design parameters was much more modest...
  31. ncbi request reprint Experimental and computational simulation of total hip arthroplasty dislocation
    C F Scifert
    Department of Orthopaedic Surgery and Biomedical Engineering, University of Iowa, Iowa City, Iowa 52242, USA
    Orthop Clin North Am 32:553-67, vii. 2001
    ....
  32. ncbi request reprint Dislocation after total hip arthroplasty: a single surgeon's experience
    B E Heithoff
    Department of Orthopaedic Surgery, University of Iowa Health Care, Iowa City, Iowa 52242, USA
    Orthop Clin North Am 32:587-91, viii. 2001
    ..Use of modular 22 millimeter components were associated with the highest dislocation rate. These components should be used very cautiously. Constrained liners have helped decrease the dislocation rate following revision for dislocation...
  33. ncbi request reprint Activity-dependence of the "safe zone" for impingement versus dislocation avoidance
    D R Pedersen
    Department of Orthopaedics and Rehabilitation, The University of Iowa, Iowa City, 52242 1100, USA
    Med Eng Phys 27:323-8. 2005
    ..Therefore, the use of impingement range of motion (ROM) as a predictor of a given cup position's vulnerability to dislocation should be viewed cautiously...
  34. pmc Effects of implant design parameters on fluid convection, potentiating third-body debris ingress into the bearing surface during THA impingement/subluxation
    Hannah J Lundberg
    Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA 52242, USA
    J Biomech 40:1676-85. 2007
    ..Increased inset of the femoral head into the acetabular cup resulted both in higher fluid velocity and in transport of third-body debris further into the bearing space...
  35. ncbi request reprint Comparison of femoral head penetration rates between cementless acetabular components with 22-mm and 28-mm heads
    D R Pedersen
    Department of Orthopaedic Surgery, University of Iowa Health Care, Iowa City, Iowa 52242, USA
    J Arthroplasty 16:111-5. 2001
    ..029). The dislocation rate was significantly higher, however, with the 22-mm heads (P=.001). The 22-mm components showed significantly less wear but at the expense of an increase in the prevalence of dislocation...
  36. pmc Cemented total hip replacement cable debris and acetabular construct durability
    Aaron J Altenburg
    University of Iowa, Iowa City, and Des Moines Orthopaedic Surgeons, West Des Moines, Iowa 52242, USA
    J Bone Joint Surg Am 91:1664-70. 2009
    ....
  37. ncbi request reprint Mobile-bearing knee replacement: concepts and results
    J J Callaghan
    Department of Orthopaedics, University of Iowa, Iowa City, Iowa, USA
    Instr Course Lect 50:431-49. 2001
    ....
  38. ncbi request reprint Total hip arthroplasty with cement and without acetabular bone graft for severe hip dysplasia. A concise follow-up, at a minimum of twenty years, of a previous report
    A S Klapach
    Iowa Methodist Medical Center, Des Moines, Iowa, USA
    J Bone Joint Surg Am 87:280-5. 2005
    ..The results that we evaluated at a minimum of twenty years after use of this technique can be compared with the results of other techniques in studies with similar long-term follow-up periods...
  39. pmc Routine surveillance of modular PFC TKA shows increasing failures after 10 years
    Andrew S Malin
    University of Iowa Hospitals and Clinics, Iowa City, IA, USA
    Clin Orthop Relat Res 468:2469-76. 2010
    ..Beyond 10 years, we observed additional polyethylene wear likely related to thin liners gamma-irradiated in air and were concerned this wear might predispose to implant construct failure...
  40. pmc Stability differentials for proximal vs distal fusion of total hip arthroplasty femoral impaction grafts
    Anneliese D Heiner
    Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, Iowa 52242, USA
    J Arthroplasty 23:921-6. 2008
    ..This proximal graft fusion also resulted in a stem stability that was similar to that of fusing the entire graft. These results emphasize the importance of proximal fixation of an impaction-grafted femoral stem...
  41. ncbi request reprint Osteolysis associated with a cemented modular posterior-cruciate-substituting total knee design : five to eight-year follow-up
    Michael R O'Rourke
    Department of Orthopaedic Surgery, University of Iowa Hospitals and Clinics, Iowa City, Iowa 52242, USA
    J Bone Joint Surg Am 84:1362-71. 2002
    ....
  42. pmc Second-generation extensively porous-coated THA stems at minimum 10-year followup
    David W Hennessy
    Department of Orthopaedics, University of Iowa Health Care, Iowa City, IA 52242, USA
    Clin Orthop Relat Res 467:2290-6. 2009
    ..These results encourage the authors to continue using second-generation extensively coated stems in their primary total hip arthroplasty constructs...
  43. ncbi request reprint Internet promotion of minimally invasive surgery and computer-assisted orthopedic surgery in total knee arthroplasty by members of American Association Of Hip And Knee Surgeons
    Lucian C Warth
    Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, Iowa
    J Arthroplasty 22:13-6. 2007
    ..7% direct claims with an additional 8.4% indirect claims)...
  44. ncbi request reprint Use of constrained acetabular components for hip instability: an average 10-year follow-up study
    Barron R B Bremner
    Department of Orthopaedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
    J Arthroplasty 18:131-7. 2003
    ..Considering the complexity of the cases, this component has provided durable fixation and hip stability at this intermediate-term follow-up...
  45. ncbi request reprint Nonidentical and outlier duty cycles as factors accelerating UHMWPE wear in THA: a finite element exploration
    Hannah J Lundberg
    Department of Orthopaedics and Rehabilitation, Orthopaedic Biomechanics Laboratory, University of Iowa, 2181 Westlawn, University of Iowa, Iowa City, Iowa 52242, USA
    J Orthop Res 25:30-43. 2007
    ..5th and 2.5th percentiles of a population of normal subjects. The resulting wear showed an increase or decrease closely proportional to the percentage by which each input (force or range of motion) was changed...
  46. ncbi request reprint Local head roughening as a factor contributing to variability of total hip wear: a finite element analysis
    Thomas D Brown
    Biomechanics Laboratory, Department of Orthopaedic Surgery, 2181 Westlawn, University of Iowa, Iowa City, IA 52242, USA
    J Biomech Eng 124:691-8. 2002
    ....
  47. ncbi request reprint Androgen receptors in human synoviocytes and androgen regulation of interleukin 1beta (IL-1beta) induced IL-6 production: a link between hypoandrogenicity and rheumatoid arthritis?
    Zhila Khalkhali-Ellis
    Department of Anatomy and Cell Biology, University of Iowa, Iowa City 52242, USA
    J Rheumatol 29:1843-6. 2002
    ..To investigate the hypothesis that synoviocytes possess androgen receptors (AR) that could be modulated by the non-aromatizable androgen, dihydrotestosterone (DHT), resulting in altered levels of inflammatory cytokines...
  48. ncbi request reprint Primary hip fixation. Cemented stems: a little difference, a lot of damage
    John J Callaghan
    Department of Orthopedic Surgery, University of Iowa College of Medicine, Iowa City, Iowa 52242, USA
    Orthopedics 26:909. 2003
  49. pmc Primary hip and knee replacement: "are we all operating on the same patients, even at the same institution?"
    Paul K Herickhoff
    University of Iowa Hospitals and Clinics, Department of Orthopaedics and Rehabilitation, John Pappajohn Pavilion, Lower Level, 200 Hawkins Drive, Iowa City, IA 52242, USA
    Iowa Orthop J 30:109-14. 2010
    ..The objective of this study was to compare primary hip and knee arthroplasty patients'pre-operative validated outcome scores between four orthopaedic surgeons operating at a single academic institution from 2003 to 2007...
  50. pmc Stability of fused versus nonfused THA femoral impaction grafts
    Anneliese D Heiner
    University of Iowa, Department of Orthopaedics and Rehabilitation, Biomechanics Laboratory, 2181 Westlawn Building, Iowa City, Iowa 52242, USA
    J Orthop Res 25:351-60. 2007
    ..These results indicate that most of the opportunity to reduce femoral stem micromotion and migration lies proximal, and that steps to enhance impaction graft remodeling and fusion are most effectively focused proximally...
  51. ncbi request reprint Kinematics, kinetics, and finite element analysis of commonplace maneuvers at risk for total hip dislocation
    Mark E Nadzadi
    Orthopaedic Biomechanics Laboratory, Department of Orthopaedic Surgery, University of Iowa, 2181 Westlawn Building, Iowa City, IA 52242, USA
    J Biomech 36:577-91. 2003
    ..These new motion data hopefully will help facilitate systematic efforts to reduce the incidence of dislocation...
  52. ncbi request reprint A laboratory simulation for morselized bone graft fusion: apparent modulus under operatively based femoral impaction kinetics
    Anneliese D Heiner
    Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA 52242, USA
    J Biomech 38:811-8. 2005
    ....
  53. pmc Implementing capsule representation in a total hip dislocation finite element model
    Kristofer J Stewart
    Departments of Orthopaedics and Rehabilitation, Orthopaedic Biomechanics Laboratory, University of Iowa, IA 52242, USA
    Iowa Orthop J 24:1-8. 2004
    ..This model is intended to help put implant design and surgical technique decisions on a firmer scientific basis, in terms of reducing the likelihood of dislocation...
  54. doi request reprint Prosthetic hip infection due to Cryptococcus neoformans: case report
    Birgir Johannsson
    Division of Infectious Diseases, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA
    Diagn Microbiol Infect Dis 64:76-9. 2009
    ..suppressive fluconazole therapy failed. The failure may have been due to an unfavorable interaction between the organism and immune mechanism as well as reduced activity of fluconazole in biofilm...
  55. pmc Effects of episodic subluxation events on third body ingress and embedment in the THA bearing surface
    Anneliese D Heiner
    Department of Orthopaedics and Rehabilitation, Biomechanics Laboratory, University of Iowa, 2181 Westlawn, Iowa City, IA 52242, USA
    J Biomech 41:2090-6. 2008
    ..Since both third body particles and subluxation frequently occur in contemporary total hip arthroplasty, their potent synergy needs to be factored prominently into strategies to minimize wear...
  56. pmc 2009 Nicolas Andry Award: clinical biomechanics of third body acceleration of total hip wear
    Thomas D Brown
    Department of Orthopaedics and Rehabilitation, Orthopaedic Biomechanics Laboratory, University of Iowa, 2181 Westlawn Building, Iowa City, IA 52242, USA
    Clin Orthop Relat Res 467:1885-97. 2009
    ..Finally, a mechanism for third-body debris access to wear-critical locations on the bearing surface is identified analytically and corroborated in laboratory experiments and implant retrievals...
  57. ncbi request reprint A biomechanical analysis of polyethylene liner cementation into a fixed metal acetabular shell
    Geoffrey F Haft
    Department of Biomedical Engineering, University of Iowa, 2181 Westlawn Building, Iowa City, IA 52242, USA
    J Bone Joint Surg Am 85:1100-10. 2003
    ..One treatment option is to cement a new liner into the fixed shell. The purpose of this study was to evaluate technical variables to improve the mechanical strength of such cemented liner constructs...
  58. pmc Ceramic on crosslinked polyethylene in total hip replacement: any better than metal on crosslinked polyethylene?
    John J Callaghan
    The Lawrence and Marilyn Dorr Chair, University of Iowa, Iowa City, IA, USA
    Iowa Orthop J 29:1-4. 2009
    ..1 versus 77.2 years for patients receiving less extensive crosslinked polyethylene. The authors explain the cost effectiveness of this approach where the difference in cost is approximately 36%...
  59. ncbi request reprint Twenty-five-year results after Charnley total hip arthroplasty in patients less than fifty years old: a concise follow-up of a previous report
    Jay D Keener
    Department of Orthopaedic Surgery, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, Iowa City, IA 52242, USA
    J Bone Joint Surg Am 85:1066-72. 2003
    ..Sixty-nine percent of the original hip replacements were functioning well at the latest follow-up examination or at the time of death, and only 5% required more than one revision arthroplasty...
  60. ncbi request reprint Posterior cruciate-retaining modular total knee arthroplasty: a 9- to 12-year follow-up investigation
    Gary B Fetzer
    Department of Orthopaedic Surgery, University of Iowa, Iowa City, Iowa 52242, USA
    J Arthroplasty 17:961-6. 2002
    ..At 10 years of follow-up, the probability of prosthesis survival was 100%, and at 12 years, the probability of prosthesis survival was 93.3% (endpoint defined as revision for any reason)...
  61. ncbi request reprint Orthopaedic crossfire--Larger femoral heads: a triumph of hope over reason! In the affirmative
    John J Callaghan
    University of Iowa College of Medicine, Department of Orthopaedic Surgery, 01073 JPP, 200 Hawkins Drive, Iowa City, IA 52242, USA
    J Arthroplasty 18:82-4. 2003
    ..Thus, with polyethylene on metal bearing surfaces, less wear should occur when smaller head sizes are used. Careful, precise component positioning is important to prevent dislocation...
  62. ncbi request reprint The John Insall Award: unicompartmental knee replacement: a minimum twenty-one-year followup, end-result study
    Michael R O'Rourke
    Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA 52242, USA
    Clin Orthop Relat Res 440:27-37. 2005
    ..LEVEL OF EVIDENCE: Therapeutic study, Level IV-1 (case series). See the Guidelines for Authors for a complete description of levels of evidence...
  63. ncbi request reprint Results of Charnley total hip arthroplasty with use of improved femoral cementing techniques. a concise follow-up, at a minimum of twenty-five years, of a previous report
    Andrea E Buckwalter
    Department of Orthopaedic Surgery, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, Iowa City, IA 52242, USA
    J Bone Joint Surg Am 88:1481-5. 2006
    ..These results provide a standard for comparison with cementless fixation after hips treated with that technique have been followed for a similar duration...
  64. ncbi request reprint Cementless acetabular fixation at fifteen years. A comparison with the same surgeon's results following acetabular fixation with cement
    John L Gaffey
    Department of Orthopaedics, University of Iowa Health Care, 200 Hawkins Drive, Iowa City, Iowa 52242, USA
    J Bone Joint Surg Am 86:257-61. 2004
    ....
  65. ncbi request reprint Are all cementless acetabular components created equal?
    John J Callaghan
    University of Iowa Health Care, Department of Orthopaedics, Iowa City, Iowa 52242, USA
    J Arthroplasty 19:95-8. 2004
    ..At least with these 2 first-generation designs, differences were seen in performance of the acetabular component in terms of revision and loosening at 15 years...
  66. ncbi request reprint What is the outcome of treatment for osteolysis?
    William Maloney
    Department of Orthopaedic Surgery, Stanford University, Stanford, CA, USA
    J Am Acad Orthop Surg 16:S26-32. 2008
    ..In general, patient age and activity level, the location and size of the osteolytic defect, and the clinical record of the implant system will dictate treatment choices...
  67. ncbi request reprint Polyethylene liner cementation into fixed acetabular shells
    Geoffrey F Haft
    Department of Orthopaedics, University of Iowa Health Care, Iowa City, Iowa 52242, USA
    J Arthroplasty 17:167-70. 2002
    ..This approach to treating the patient with a fixed cementless shell and a worn polyethylene liner can provide a durable construct with minimal morbidity...
  68. ncbi request reprint The role of implant constraint in revision total knee arthroplasty: not too little, not too much
    John J Callaghan
    Department of Orthopedics and Rehabilitation, University of Iowa, 01029 JPP, Iowa City, IA 52242, USA
    J Arthroplasty 20:41-3. 2005
    ..Understanding the limits of the various designs available (cruciate retaining, cruciate substituting, valgus-varus constraining, and linked) should help the surgeon construct a stable and durable construct...
  69. ncbi request reprint Periprosthetic fractures of the hip and knee: a problem on the rise but better solutions
    Craig J Della Valle
    Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
    Instr Course Lect 59:563-75. 2010
    ....
  70. ncbi request reprint Picking your implant: all PS knees are not alike!
    John J Callaghan
    Department of Orthopedics, University of Iowa Health Care, Iowa City 52242, USA
    Orthopedics 25:977-8. 2002
  71. doi request reprint Subcapital fractures: a changing paradigm
    J J Callaghan
    University of Iowa, P O Box 2282, Iowa City, Iowa 52244, USA
    J Bone Joint Surg Br 94:19-21. 2012
    ..In the cognitively dysfunctional, a bipolar hemiarthroplasty or a total hip arthroplasty with use of larger heads (32 mm or 36 mm) and/or constrained sockets are a viable option...
  72. pmc Minimum ten-year follow-up of cemented total hip replacement in patients with osteonecrosis of the femoral head
    Thomas M Fyda
    Department of Orthopaedics, University of Iowa College of Medicine, Iowa City 52242, USA
    Iowa Orthop J 22:8-19. 2002
    ....
  73. pmc Function and fixation of total hip arthroplasty in patients 25 years of age or younger
    John C Clohisy
    Department of Orthopaedic Surgery, Washington University School of Medicine, St Louis, MO 63110, USA
    Clin Orthop Relat Res 468:3207-13. 2010
    ..The functional improvements in this group of patients are not well documented and whether the condition for which the surgery is performed influences function...
  74. ncbi request reprint Reliability of detecting prosthesis/cement interface radiolucencies in total hip arthroplasty
    Yongde Zhang
    Department of Orthopedic Surgery, University of Iowa, Iowa City 52242, USA
    J Orthop Res 20:683-7. 2002
    ..Radiolucencies of at least 0.7 mm width are necessary to be accurately detectable by most viewers...
  75. ncbi request reprint The Agility total ankle arthroplasty. Seven to sixteen-year follow-up
    Stephen I Knecht
    Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, Iowa 52242, USA
    J Bone Joint Surg Am 86:1161-71. 2004
    ..The purpose of this study was to report longer-term results of this procedure in the treatment of disabling ankle arthritis...
  76. ncbi request reprint Computer-assisted surgery: a wine before its time: in the affirmative
    John J Callaghan
    Department of Orthopaedic Surgery, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
    J Arthroplasty 21:27-8. 2006
    ..Reproducibility of these improvements in precision and accuracy in the hands of the less experienced surgeon must be documented...
  77. ncbi request reprint The uni experience: history tells it all
    John J Callaghan
    University of Iowa, Iowa City, Iowa 52244, USA
    Orthopedics 28:988. 2005
  78. ncbi request reprint Minimal incision total hip arthroplasty
    Thomas P Vail
    Department of Orthopaedic Surgery, University of California, San Francisco, CA 94143 0728, USA
    J Am Acad Orthop Surg 15:707-15. 2007
    ..Total hip replacement may be successfully achieved via smaller incisions, but functional improvement, discharge to home, patient satisfaction, and analgesic requirement may be similar regardless of the length of the incision...
  79. ncbi request reprint Variances in sagittal femoral shaft bowing in patients undergoing TKA
    Tameem M Yehyawi
    Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA, USA
    Clin Orthop Relat Res 464:99-104. 2007
    ..Men had greater proximal bowing and less distal bowing than women. The effects of these variances may have implications in development of osteoarthritis and total knee arthroplasty component survival...
  80. ncbi request reprint A prospective randomized trial of cemented femoral components with polished versus grit-blasted surface finish and identical stem geometry
    Thomas Parker Vail
    Duke University Medical Center, Durham, North Carolina 27710, USA
    J Arthroplasty 18:95-102. 2003
    ..8-year follow-up for this stem design...
  81. ncbi request reprint Salvage of a recurrently dislocating total hip prosthesis with use of a constrained acetabular component. A concise follow-up of a previous report
    Devon D Goetz
    Des Moines Orthopaedic Surgeons, 6001 Westown Parkway, West Des Moines, IA 50266, USA
    J Bone Joint Surg Am 86:2419-23. 2004
    ..We use this device to treat recurrent dislocation when other modalities are unlikely to be effective...
  82. ncbi request reprint What are the guidelines for the surgical and nonsurgical treatment of periprosthetic osteolysis?
    Bernard N Stulberg
    Center for Joint Reconstruction, Cleveland Orthopaedic and Spine Hospital at Lutheran, Cleveland Clinic Health System, Cleveland, OH, USA
    J Am Acad Orthop Surg 16:S20-5. 2008
    ..A standardized follow-up evaluation mechanism for all patients should be a part of total joint arthroplasty management...
  83. ncbi request reprint What would you do? Challenges in hip surgery
    Robert T Trousdale
    Mayo Clinic, Rochester, Minnesota 55905, USA
    J Arthroplasty 22:116-22. 2007
    ..The following are 5 case presentations of interesting and challenging patients with hip pathology...
  84. ncbi request reprint How prevalent are implant wear and osteolysis, and how has the scope of osteolysis changed since 2000?
    Amanda Marshall
    University of Texas Health Science Center, San Antonio, TX, USA
    J Am Acad Orthop Surg 16:S1-6. 2008
    ....
  85. ncbi request reprint Results of porous-coated anatomic total hip arthroplasty without cement at fifteen years: a concise follow-up of a previous report
    J A Bojescul
    Department of Orthopaedic Surgery and Rehabilitation Services, Orthopaedic Surgery Service, Walter Reed Army Medical Center, 6900 Georgia Avenue N W, Washington, DC 20307, USA
    J Bone Joint Surg Am 85:1079-83. 2003
    ..Only four femoral stems had been revised for isolated loosening (without osteolysis). The PCA femoral component proved to be durable at a minimum of fifteen years postoperatively, while the acetabular component was less durable...
  86. ncbi request reprint What patient and surgical factors contribute to implant wear and osteolysis in total joint arthroplasty?
    Audrey K Tsao
    Johns Hopkins University School of Medicine, Baltimore, MD, USA
    J Am Acad Orthop Surg 16:S7-13. 2008
    ..Although these categories are interrelated and not mutually exclusive, they enable us to build a framework in which to further advance our understanding of osteolysis and apply this information in a clinically relevant manner...
  87. ncbi request reprint How are wear-related problems diagnosed and what forms of surveillance are necessary?
    Henrik Malchau
    Harvard Medical School, The Harris Orthopaedic Biomechanics and Biomaterials Laboratory, Adult Reconstructive Unit, Department of Orthopedics, Massachusetts General Hospital, Boston, MA, USA
    J Am Acad Orthop Surg 16:S14-9. 2008
    ..MRI can more accurately localize both osseous and soft-tissue particulate disease, and detect granuloma and compression on adjacent nerves and vessels...
  88. ncbi request reprint Why knees fail: lessons learned
    John J Callaghan
    University of Iowa Health Care, Department of Orthopaedics, Iowa City, Iowa 52242, US
    J Arthroplasty 19:31-4. 2004
    ..Awareness of the modes of failure may lower the prevalence of failure and aid in developing designs and techniques to better address the problems...
  89. ncbi request reprint Current etiologies and modes of failure in total knee arthroplasty revision
    Kevin J Mulhall
    Department of Orthopaedic Surgery, Mater Misericordiae University Hospital, Dublin, Ireland
    Clin Orthop Relat Res 446:45-50. 2006
    ..Level of Evidence: Therapeutic study, level II-2 (prospective study). See the Guidelines for Authors for a complete description of levels of evidence...
  90. ncbi request reprint Osteonecrosis of the hip: management in the 21st century
    Jay R Lieberman
    Department of Orthopaedic Surgery, UCLA Medical Center, Los Angeles, California, USA
    Instr Course Lect 52:337-55. 2003
    ..Core decompression, vascularized and nonvascularized bone grafting procedures, and arthroplasty procedures play an important role in treatment...
  91. pmc Intrapelvic migration of the trial femoral head during total hip arthroplasty: is retrieval necessary? A report of four cases
    John J Callaghan
    Iowa Orthop J 26:60-2. 2006
    ..We report the dissociation of the trial femoral head with migration of the head into the pelvis while checking for anterior stability of the total hip arthroplasty construct. Options for retrieval of the head are outlined...
  92. ncbi request reprint Prophylaxis for thromboembolic disease: recommendations from the American College of Chest Physicians--are they appropriate for orthopaedic surgery?
    John J Callaghan
    J Arthroplasty 20:273-4. 2005
  93. ncbi request reprint Femoral deformity correction: sometimes, always, never
    John J Callaghan
    Department of Orthopedics and Rehabilitation, University of Iowa Health Care, Iowa City 52242, USA
    Orthopedics 29:806-7. 2006
  94. ncbi request reprint The orthopaedic profession and the industry partnership
    Roy D Crowninshield
    Rush Medical College, Chicago, IL, USA
    Clin Orthop Relat Res 457:73-7. 2007
    ..This work outlines some of the current risks and opportunities for the beneficial delivery of patient care the orthopaedic profession and industry mutually face...
  95. ncbi request reprint A randomized, parallel-group, open-label trial of recombinant human erythropoietin vs preoperative autologous donation in primary total joint arthroplasty: effect on postoperative vigor and handgrip strength
    E Michael Keating
    The Center for Hip and Knee Surgery, Kendrick Memorial Hospital, Mooresville, Indiana, USA
    J Arthroplasty 22:325-33. 2007
    ..Patients in the EPO group had higher hemoglobin levels and required fewer transfusions. Both treatments were well tolerated. Additional study is needed to elucidate the influence of blood management strategies on postoperative vigor...