Yuki Tochigi

Summary

Affiliation: University of Iowa
Country: USA

Publications

  1. pmc A novel impaction technique to create experimental articular fractures in large animal joints
    Y Tochigi
    Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA 52242 1100, United States
    Osteoarthritis Cartilage 21:200-8. 2013
  2. pmc Entropy analysis of tri-axial leg acceleration signal waveforms for measurement of decrease of physiological variability in human gait
    Yuki Tochigi
    Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, Iowa 52242 1100, USA
    J Orthop Res 30:897-904. 2012
  3. ncbi request reprint Surgical approach for centrolateral talar osteochondral lesions with an anterolateral osteotomy
    Yuki Tochigi
    Department of Orthopaedic Surgery, The University of Iowa, Iowa City 52242 1100, USA
    Foot Ankle Int 23:1038-9. 2002
  4. pmc Instability dependency of osteoarthritis development in a rabbit model of graded anterior cruciate ligament transection
    Yuki Tochigi
    Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, Iowa 52242, USA
    J Bone Joint Surg Am 93:640-7. 2011
  5. pmc Distribution and progression of chondrocyte damage in a whole-organ model of human ankle intra-articular fracture
    Yuki Tochigi
    Department of Orthopaedics and Rehabilitation, The University of Iowa, Iowa City, 52242, USA
    J Bone Joint Surg Am 93:533-9. 2011
  6. pmc Correlation of dynamic cartilage contact stress aberrations with severity of instability in ankle incongruity
    Yuki Tochigi
    Department of Orthopedics and Rehabilitation, University of Iowa, 2181 Westlawn, Iowa City, IA 52242 1100, USA
    J Orthop Res 26:1186-93. 2008
  7. ncbi request reprint Contribution of articular surface geometry to ankle stabilization
    Yuki Tochigi
    Orthopaedic Biomechanics Laboratory, Department of Orthopaedics and Rehabilitation, University of Iowa Hospitals and Clinics, 2181 Westlawn, Iowa City, IA 52242 1100, USA
    J Bone Joint Surg Am 88:2704-13. 2006
  8. pmc Ankle alignment on lateral radiographs. Part 2: reliability and validity of measures
    Yuki Tochigi
    Orthopaedic Biomechanics Laboratory, University of Iowa, 2181 Westlawn, Iowa City, IA 52242 1100, USA
    Foot Ankle Int 27:88-92. 2006
  9. pmc Ankle alignment on lateral radiographs. Part 1: sensitivity of measures to perturbations of ankle positioning
    Yuki Tochigi
    Orthopaedic Biomechanics Laboratory, University of Iowa, 2181 Westlawn, Iowa City, IA 52242 1100, USA
    Foot Ankle Int 27:82-7. 2006
  10. pmc Tensile engagement of the peri-ankle ligaments in stance phase
    Yuki Tochigi
    Orthopaedic Biomechanics Laboratory, Department of Orthopaedics and Rehabilitation, University of Iowa, 2181 Westlawn, Iowa City, IA 52242 1100, USA
    Foot Ankle Int 26:1067-73. 2005

Detail Information

Publications29

  1. pmc A novel impaction technique to create experimental articular fractures in large animal joints
    Y Tochigi
    Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA 52242 1100, United States
    Osteoarthritis Cartilage 21:200-8. 2013
    ....
  2. pmc Entropy analysis of tri-axial leg acceleration signal waveforms for measurement of decrease of physiological variability in human gait
    Yuki Tochigi
    Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, Iowa 52242 1100, USA
    J Orthop Res 30:897-904. 2012
    ..0002) than did age-matched asymptomatic subjects who walked at equivalent velocity. This approach holds promise as a basis for valid, inexpensive, and convenient objective evaluation of limitations in human gait function...
  3. ncbi request reprint Surgical approach for centrolateral talar osteochondral lesions with an anterolateral osteotomy
    Yuki Tochigi
    Department of Orthopaedic Surgery, The University of Iowa, Iowa City 52242 1100, USA
    Foot Ankle Int 23:1038-9. 2002
  4. pmc Instability dependency of osteoarthritis development in a rabbit model of graded anterior cruciate ligament transection
    Yuki Tochigi
    Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, Iowa 52242, USA
    J Bone Joint Surg Am 93:640-7. 2011
    ..In a survival rabbit knee model of graded joint instability, the relationship between the magnitude of instability and the intensity of cartilage degeneration was studied at the organ level in vivo...
  5. pmc Distribution and progression of chondrocyte damage in a whole-organ model of human ankle intra-articular fracture
    Yuki Tochigi
    Department of Orthopaedics and Rehabilitation, The University of Iowa, Iowa City, 52242, USA
    J Bone Joint Surg Am 93:533-9. 2011
    ..In this study, the distribution and progression of fracture-associated cell-level cartilage damage were assessed using a novel whole-organ model of human ankle intra-articular fracture...
  6. pmc Correlation of dynamic cartilage contact stress aberrations with severity of instability in ankle incongruity
    Yuki Tochigi
    Department of Orthopedics and Rehabilitation, University of Iowa, 2181 Westlawn, Iowa City, IA 52242 1100, USA
    J Orthop Res 26:1186-93. 2008
    ..Given this linear relationship, even small instability events presumably involve appreciable abnormality in dynamic joint contact mechanics...
  7. ncbi request reprint Contribution of articular surface geometry to ankle stabilization
    Yuki Tochigi
    Orthopaedic Biomechanics Laboratory, Department of Orthopaedics and Rehabilitation, University of Iowa Hospitals and Clinics, 2181 Westlawn, Iowa City, IA 52242 1100, USA
    J Bone Joint Surg Am 88:2704-13. 2006
    ..In the present study, it was hypothesized that, in the ankle under axial loading, contact-stress changes in response to alterations of external load involve reproducible and specific patterns to maintain ankle stability...
  8. pmc Ankle alignment on lateral radiographs. Part 2: reliability and validity of measures
    Yuki Tochigi
    Orthopaedic Biomechanics Laboratory, University of Iowa, 2181 Westlawn, Iowa City, IA 52242 1100, USA
    Foot Ankle Int 27:88-92. 2006
    ..Two methods for quantifying anteroposterior tibial-talar alignment without relying on those landmarks were identified in a corollary cadaver-based study. This study aimed to verify reliability and validity of those candidate measures...
  9. pmc Ankle alignment on lateral radiographs. Part 1: sensitivity of measures to perturbations of ankle positioning
    Yuki Tochigi
    Orthopaedic Biomechanics Laboratory, University of Iowa, 2181 Westlawn, Iowa City, IA 52242 1100, USA
    Foot Ankle Int 27:82-7. 2006
    ..To identify a radiographic measure of anteroposterior tibial-talar alignment that meets those requirements, three methods were compared to determine their sensitivity to perturbations in ankle positioning...
  10. pmc Tensile engagement of the peri-ankle ligaments in stance phase
    Yuki Tochigi
    Orthopaedic Biomechanics Laboratory, Department of Orthopaedics and Rehabilitation, University of Iowa, 2181 Westlawn, Iowa City, IA 52242 1100, USA
    Foot Ankle Int 26:1067-73. 2005
    ..The contribution of the peri-ankle ligaments to ankle motion control is not yet well understood. Knowledge of the tensile engagement of the peri-ankle ligaments during stance phase is necessary to achieve physiologic motion patterns...
  11. ncbi request reprint The role of the interosseous talocalcaneal ligament in subtalar joint stability
    Yuki Tochigi
    Department of Orthopaedics and Rehabilitation, University of Iowa, USA
    Foot Ankle Int 25:588-96. 2004
    ..Clinical effects of ITCL failure remain unclear because of insufficient understanding of the role of the ligament...
  12. ncbi request reprint The effect of accuracy of implantation on range of movement of the Scandinavian Total Ankle Replacement
    Y Tochigi
    Orthopaedics Biomechanics Laboratory, Department of Orthopaedics and Rehabilitation, University of Iowa, 2181 Westlawn, Iowa City, Iowa 52242 1100, USA
    J Bone Joint Surg Br 87:736-40. 2005
    ..With increased bearing thickness, posterior displacement of the talar component decreased plantar flexion, whereas anterior displacement decreased dorsiflexion...
  13. ncbi request reprint Incongruity-dependent changes of contact stress rates in human cadaveric ankles
    Todd O McKinley
    University of Iowa Department of Orthopaedics and Rehabilitation, Iowa City, IA 52242, USA
    J Orthop Trauma 20:732-8. 2006
    ..Incongruity-associated changes in contact stress rates and incongruity-associated instability events may be important pathomechanical determinants of post-traumatic arthritis...
  14. pmc Organ-level histological and biomechanical responses from localized osteoarticular injury in the rabbit knee
    Tanawat Vaseenon
    Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, Iowa, USA
    J Orthop Res 29:340-6. 2011
    ..Immediate injury-associated alterations in the medial compartment contact mechanics were also demonstrated. Localized osteoarticular injury in this survival animal model resulted in global joint histological changes...
  15. pmc Effect of implantation accuracy on ankle contact mechanics with a metallic focal resurfacing implant
    Donald D Anderson
    Department of Orthopaedics and Rehabilitation, The University of Iowa, Iowa City, IA 52242 1100, USA
    J Bone Joint Surg Am 92:1490-500. 2010
    ..Focal resurfacing with a metallic implant has shown promise in other joints. We studied the effect of implantation accuracy on ankle contact mechanics after focal resurfacing of a defect in the talar dome...
  16. pmc Intra-articular contact stress distributions at the ankle throughout stance phase-patient-specific finite element analysis as a metric of degeneration propensity
    Donald D Anderson
    Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA 52242, USA
    Biomech Model Mechanobiol 5:82-9. 2006
    ....
  17. pmc In vivo measurement of translational stiffness of rabbit knees
    Anneliese D Heiner
    Department of Orthopaedics and Rehabilitation, Biomechanics Laboratory, University of Iowa, 2181 Westlawn, Iowa City, IA 52242, USA
    J Biomech 40:2313-7. 2007
    ....
  18. pmc Instability-associated changes in contact stress and contact stress rates near a step-off incongruity
    Todd O McKinley
    Department of Orthopaedics and Rehabilitation, University of Iowa, 200 Hawkins Drive, Iowa City, IA 52242, USA
    J Bone Joint Surg Am 90:375-83. 2008
    ..It was hypothesized that joint instability, superimposed on articular incongruity, would cause significant increases in contact stresses and contact stress rates...
  19. pmc Physical validation of a patient-specific contact finite element model of the ankle
    Donald D Anderson
    Department of Orthopaedics, University of Iowa, Iowa City, IA, USA Biomedical Engineering, The University of Iowa, Iowa City, IA, USA
    J Biomech 40:1662-9. 2007
    ..g., those from an intact versus those with residual intra-articular fracture incongruity)...
  20. doi request reprint Replication of chronic abnormal cartilage loading by medial meniscus destabilization for modeling osteoarthritis in the rabbit knee in vivo
    Marut Arunakul
    Department of Orthopaedics and Rehabilitation, Orthopaedic Biomechanics Laboratory, University of Iowa, 2181 Westlawn, Iowa City, Iowa, 52242 1100, USA
    J Orthop Res 31:1555-60. 2013
    ....
  21. doi request reprint Varus external rotation stress test for radiographic detection of deep deltoid ligament disruption with and without syndesmotic disruption: a cadaveric study
    John E Femino
    Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA, USA
    Foot Ankle Int 34:251-60. 2013
    ..Isolated deep deltoid ligament (DDL) instability and combined DDL and syndesmotic instability were modeled. An intact fibula was used as a surrogate for an anatomically fixed fibula fracture...
  22. ncbi request reprint Contact stress transients during functional loading of ankle stepoff incongruities
    Todd O McKinley
    Department of Orthopaedic Surgery, University of Iowa Hospitals and Clinics, 01021 JPP, 200 Hawkins Drive, Iowa City, IA 52242, USA
    J Biomech 39:617-26. 2006
    ..Measuring contact stresses and contact stress gradients during motion allowed potential incongruity-associated pathologic changes in loading that occur over the complete motion cycle to be investigated...
  23. pmc The capsule's contribution to total hip construct stability--a finite element analysis
    Jacob M Elkins
    Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa, USA
    J Orthop Res 29:1642-8. 2011
    ..These parametric model results underscore the importance of retaining or robustly repairing capsular structures in THA, in order to maximize overall construct stability. ..
  24. pmc Ankle morphometry on 3D-CT images
    Andrea Hayes
    The University of Iowa, Department of Orthopaedics and Rehabilitation, USA
    Iowa Orthop J 26:1-4. 2006
    ..07). The data describe talar topography in a Caucasian U.S. adult cohort, suggesting the capability of the 3D-CT approach for ankle morphometric evaluation and sizing for the fabrication of total ankle replacements...
  25. pmc The effect of incongruity and instability on contact stress directional gradients in human cadaveric ankles
    T O McKinley
    Orthopaedics Biomechanics Laboratory, Department of Orthopaedic Surgery, University of Iowa, Iowa City, IA 52242, USA
    Osteoarthritis Cartilage 16:1363-9. 2008
    ..Measure incongruity and instability-associated changes in transient contact stress directional gradients in a human cadaveric ankle model...
  26. ncbi request reprint Stance-phase aggregate contact stress and contact stress gradient changes resulting from articular surface stepoffs in human cadaveric ankles
    T O McKinley
    Department of Orthopaedic Surgery, University of Iowa, 200 Hawkins Drive, Iowa City, IA 52242, USA
    Osteoarthritis Cartilage 14:131-8. 2006
    ..Determine how stepoff incongruities of the distal tibia affect aggregate (whole-cycle) contact stresses and contact stress gradients for a complete motion cycle in human cadaveric ankles...
  27. ncbi request reprint Arthroscopic visualization of the posterior subtalar joint in the prone position: a cadaver study
    Phinit Phisitkul
    Department of Orthopaedics and Rehabilitation, The University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
    Arthroscopy 22:511-5. 2006
    ..This study is aimed to assess if using the posteromedial (PM) portal in the prone position can increase the working area available through the dorsal and ventral posterolateral (PL) portals commonly used in the standard techniques...
  28. ncbi request reprint Talar dome access for osteochondral lesions
    Dawson Muir
    Tauranga, New Zealand
    Am J Sports Med 34:1457-63. 2006
    ..Recently, osteochondral grafting has become a popular procedure for treating challenging talar dome lesions. However, no guidelines exist for selection of the surgical approach to obtain perpendicular access to the talar dome...
  29. ncbi request reprint Effect of arch supports on ankle-subtalar complex instability: a biomechanical experimental study
    Yuki Tochigi
    Department of Orthopaedic Surgery, Chiba University, Chiba, Japan
    Foot Ankle Int 24:634-9. 2003
    ..In the current study the author hypothesized that arch-support insole functions to improve abnormal joint kinematics in ankle-subtalar complex instability...