James D Johnston

Summary

Affiliation: University of Saskatchewan
Country: Canada

Publications

  1. doi request reprint Predicting subchondral bone stiffness using a depth-specific CT topographic mapping technique in normal and osteoarthritic proximal tibiae
    James D Johnston
    Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, SK, Canada
    Clin Biomech (Bristol, Avon) 26:1012-8. 2011
  2. doi request reprint Computed tomography topographic mapping of subchondral density (CT-TOMASD) in osteoarthritic and normal knees: methodological development and preliminary findings
    J D Johnston
    Department of Mechanical Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N 1G9, Canada
    Osteoarthritis Cartilage 17:1319-26. 2009
  3. doi request reprint A comparison of conventional maximum intensity projection with a new depth-specific topographic mapping technique in the CT analysis of proximal tibial subchondral bone density
    James D Johnston
    Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, SK, Canada
    Skeletal Radiol 39:867-76. 2010
  4. doi request reprint In vivo precision of a depth-specific topographic mapping technique in the CT analysis of osteoarthritic and normal proximal tibial subchondral bone density
    James D Johnston
    Department of Mechanical Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK, S7N 5A9, Canada
    Skeletal Radiol 40:1057-64. 2011
  5. doi request reprint Prediction of local proximal tibial subchondral bone structural stiffness using subject-specific finite element modeling: Effect of selected density-modulus relationship
    S Majid Nazemi
    Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, Canada Electronic address
    Clin Biomech (Bristol, Avon) 30:703-12. 2015
  6. ncbi request reprint Strength indices from pQCT imaging predict up to 85% of variance in bone failure properties at tibial epiphysis and diaphysis
    S A Kontulainen
    College of Kinesiology, University of Saskatchewan, Saskatoon, SK, Canada
    J Musculoskelet Neuronal Interact 8:401-9. 2008
  7. doi request reprint Individual and combined effects of OA-related subchondral bone alterations on proximal tibial surface stiffness: a parametric finite element modeling study
    Morteza Amini
    Department of Mechanical Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, S7N 1G9, Canada
    Med Eng Phys 37:783-91. 2015
  8. doi request reprint Measurement of muscle and fat in postmenopausal women: precision of previously reported pQCT imaging methods
    Andrew W Frank-Wilson
    College of Kinesiology, University of Saskatchewan, Saskatoon, SK, Canada Electronic address
    Bone 75:49-54. 2015
  9. doi request reprint Comparison of short-term in vivo precision of bone density and microarchitecture at the distal radius and tibia between postmenopausal women and young adults
    Chantal E Kawalilak
    College of Kinesiology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada Electronic address
    J Clin Densitom 17:510-7. 2014
  10. ncbi request reprint The biomechanical basis of bone strength development during growth
    Saija A Kontulainen
    College of Kinesiology, University of Saskatchewan, Saskatoon, Sask, Canada
    Med Sport Sci 51:13-32. 2007

Collaborators

Detail Information

Publications10

  1. doi request reprint Predicting subchondral bone stiffness using a depth-specific CT topographic mapping technique in normal and osteoarthritic proximal tibiae
    James D Johnston
    Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, SK, Canada
    Clin Biomech (Bristol, Avon) 26:1012-8. 2011
    ..A second objective was to determine whether cartilage degeneration (an indicator of osteoarthritis) affected predictions...
  2. doi request reprint Computed tomography topographic mapping of subchondral density (CT-TOMASD) in osteoarthritic and normal knees: methodological development and preliminary findings
    J D Johnston
    Department of Mechanical Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N 1G9, Canada
    Osteoarthritis Cartilage 17:1319-26. 2009
    ..To develop a precise imaging tool which measures three-dimensional (3D) subchondral bone mineral density (BMD), and investigate its ability to distinguish subchondral bone properties in osteoarthritic and normal cadaveric tibiae...
  3. doi request reprint A comparison of conventional maximum intensity projection with a new depth-specific topographic mapping technique in the CT analysis of proximal tibial subchondral bone density
    James D Johnston
    Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, SK, Canada
    Skeletal Radiol 39:867-76. 2010
    ....
  4. doi request reprint In vivo precision of a depth-specific topographic mapping technique in the CT analysis of osteoarthritic and normal proximal tibial subchondral bone density
    James D Johnston
    Department of Mechanical Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK, S7N 5A9, Canada
    Skeletal Radiol 40:1057-64. 2011
    ....
  5. doi request reprint Prediction of local proximal tibial subchondral bone structural stiffness using subject-specific finite element modeling: Effect of selected density-modulus relationship
    S Majid Nazemi
    Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, Canada Electronic address
    Clin Biomech (Bristol, Avon) 30:703-12. 2015
    ....
  6. ncbi request reprint Strength indices from pQCT imaging predict up to 85% of variance in bone failure properties at tibial epiphysis and diaphysis
    S A Kontulainen
    College of Kinesiology, University of Saskatchewan, Saskatoon, SK, Canada
    J Musculoskelet Neuronal Interact 8:401-9. 2008
    ..At the diaphyseal sites 80% or more of the variance in failure moment and/or flexural rigidity was predicted by total and cortical area and content, geometry and strength indices corresponding to the axes of bending...
  7. doi request reprint Individual and combined effects of OA-related subchondral bone alterations on proximal tibial surface stiffness: a parametric finite element modeling study
    Morteza Amini
    Department of Mechanical Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, S7N 1G9, Canada
    Med Eng Phys 37:783-91. 2015
    ..Our results suggest that observed OA-related alterations to epiphyseal trabecular bone (e.g., lower mineralization, bone volume fraction, density and elastic modulus) may contribute to OA proximal tibiae being less stiff than normal. ..
  8. doi request reprint Measurement of muscle and fat in postmenopausal women: precision of previously reported pQCT imaging methods
    Andrew W Frank-Wilson
    College of Kinesiology, University of Saskatchewan, Saskatoon, SK, Canada Electronic address
    Bone 75:49-54. 2015
    ..Precision for IMAT area varied considerably, from 3 to 42%. Consideration of these study results will aid in the selection of appropriate image analysis protocols for pQCT-derived soft-tissue outcomes in postmenopausal women...
  9. doi request reprint Comparison of short-term in vivo precision of bone density and microarchitecture at the distal radius and tibia between postmenopausal women and young adults
    Chantal E Kawalilak
    College of Kinesiology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada Electronic address
    J Clin Densitom 17:510-7. 2014
    ..The 95% LOA confirmed that the measurement bias between the groups did not differ. These results suggest that short-term precision errors in HR-pQCT-derived bone outcomes are similar between postmenopausal women and young adults...
  10. ncbi request reprint The biomechanical basis of bone strength development during growth
    Saija A Kontulainen
    College of Kinesiology, University of Saskatchewan, Saskatoon, Sask, Canada
    Med Sport Sci 51:13-32. 2007
    ..However, the tempo, timing, and extent of such adaptations are also closely regulated by several systemic hormones...