Frank Pintar

Summary

Affiliation: Medical College of Wisconsin
Country: USA

Publications

  1. ncbi request reprint Characterizing occipital condyle loads under high-speed head rotation
    Frank A Pintar
    Neuroscience and Biomechanics Research Laboratories, VA Medical Center Department of Neurosurgery, Medical College of Wisconsin Milwaukee, Wisconsin, 53295, USA
    Stapp Car Crash J 49:33-47. 2005
  2. ncbi request reprint Biomechanical characterization of internal layer subfailure in blunt arterial injury
    Brian D Stemper
    Department of Neurosurgery, Medical College of Wisconsin, 9200 W Wisconsin Ave, Milwaukee, WI 53226, USA
    Ann Biomed Eng 35:285-91. 2007
  3. doi request reprint Methodology to determine skull bone and brain responses from ballistic helmet-to-head contact loading using experiments and finite element analysis
    Frank A Pintar
    Medical College of Wisconsin and VA Medical Center, Milwaukee, WI, USA Electronic address
    Med Eng Phys 35:1682-7. 2013
  4. ncbi request reprint Comparison of PMHS, WorldSID, and THOR-NT responses in simulated far side impact
    Frank A Pintar
    Medical College of Wisconsin, VA Medical Center Research 151, 5000 W National Ave, Milwaukee, Wisconsin 53295, USA
    Stapp Car Crash J 51:313-60. 2007
  5. ncbi request reprint Lower cervical spine loading in frontal sled tests using inverse dynamics: potential applications for lower neck injury criteria
    Frank A Pintar
    Department of Neurosurgery Medical College of Wisconsin 9200 West Wisconsin Avenue, Milwaukee, WI 53226, USA
    Stapp Car Crash J 54:133-66. 2010
  6. ncbi request reprint Kinetics of the head-neck complex in low-speed rear impact
    Brian D Stemper
    Department of Neurosurgery, Medical College of Wisconsin, V A Medical Center, Marquette University, Milwaukee, Wisconsin, USA
    Biomed Sci Instrum 39:245-50. 2003
  7. doi request reprint Importance of physical properties of the human head on head-neck injury metrics
    Narayan Yoganandan
    Medical College of Wisconsin, Neurosurgery, VA Medical Center, Milwaukee, Wisconsin 53226, USA
    Traffic Inj Prev 10:488-96. 2009
  8. ncbi request reprint Experimental flexion/extension data corridors for validation of finite element models of the young, normal cervical spine
    John A Wheeldon
    Department of Neurosurgery, Neuroscience Research Laboratories, Medical College of Wisconsin and VA Medical Center 151, 5000 West National Avenue, Milwaukee, WI 53295, USA
    J Biomech 39:375-80. 2006
  9. ncbi request reprint Role of translational and rotational accelerations on brain strain in lateral head impact
    Jiangyue Zhang
    Medical College of Wisconsin, Milwaukee, WI, USA
    Biomed Sci Instrum 42:501-6. 2006
  10. ncbi request reprint Validation of a clinical finite element model of the human lumbosacral spine
    Yabo Guan
    Department of Neurosurgery, Medical College of Wisconsin, 9200 West Wisconsin Avenue, Milwaukee, WI 53226, USA
    Med Biol Eng Comput 44:633-41. 2006

Research Grants

Collaborators

Detail Information

Publications89

  1. ncbi request reprint Characterizing occipital condyle loads under high-speed head rotation
    Frank A Pintar
    Neuroscience and Biomechanics Research Laboratories, VA Medical Center Department of Neurosurgery, Medical College of Wisconsin Milwaukee, Wisconsin, 53295, USA
    Stapp Car Crash J 49:33-47. 2005
    ..The AIS=3+ extension moment at the 50(th) percentile probability was 75 Nm. The new THOR-NT ATD head-neck produced more biofidelic responses with an alternate head-neck junction design compared to the Hybrid III ATD...
  2. ncbi request reprint Biomechanical characterization of internal layer subfailure in blunt arterial injury
    Brian D Stemper
    Department of Neurosurgery, Medical College of Wisconsin, 9200 W Wisconsin Ave, Milwaukee, WI 53226, USA
    Ann Biomed Eng 35:285-91. 2007
    ..Delayed symptomatology commonly associated with blunt arterial injuries is explained by this mechanics-based and experimentally quantified onset of subcatastrophic failure...
  3. doi request reprint Methodology to determine skull bone and brain responses from ballistic helmet-to-head contact loading using experiments and finite element analysis
    Frank A Pintar
    Medical College of Wisconsin and VA Medical Center, Milwaukee, WI, USA Electronic address
    Med Eng Phys 35:1682-7. 2013
    ..All elements crossed the pressure limit for helmet-B. For both helmets, no brain elements exceeded peak principal strain limit. These findings advance our understanding of skull and brain biomechanics from helmet-head contact forces...
  4. ncbi request reprint Comparison of PMHS, WorldSID, and THOR-NT responses in simulated far side impact
    Frank A Pintar
    Medical College of Wisconsin, VA Medical Center Research 151, 5000 W National Ave, Milwaukee, Wisconsin 53295, USA
    Stapp Car Crash J 51:313-60. 2007
    ..The current test series demonstrated that with some modifications, both the WorldSID and THOR have the potential to function as good human surrogates in far side impact configurations...
  5. ncbi request reprint Lower cervical spine loading in frontal sled tests using inverse dynamics: potential applications for lower neck injury criteria
    Frank A Pintar
    Department of Neurosurgery Medical College of Wisconsin 9200 West Wisconsin Avenue, Milwaukee, WI 53226, USA
    Stapp Car Crash J 54:133-66. 2010
    ....
  6. ncbi request reprint Kinetics of the head-neck complex in low-speed rear impact
    Brian D Stemper
    Department of Neurosurgery, Medical College of Wisconsin, V A Medical Center, Marquette University, Milwaukee, Wisconsin, USA
    Biomed Sci Instrum 39:245-50. 2003
    ....
  7. doi request reprint Importance of physical properties of the human head on head-neck injury metrics
    Narayan Yoganandan
    Medical College of Wisconsin, Neurosurgery, VA Medical Center, Milwaukee, Wisconsin 53226, USA
    Traffic Inj Prev 10:488-96. 2009
    ..To demonstrate the importance of using specimen-specific head physical properties in head-neck dynamics...
  8. ncbi request reprint Experimental flexion/extension data corridors for validation of finite element models of the young, normal cervical spine
    John A Wheeldon
    Department of Neurosurgery, Neuroscience Research Laboratories, Medical College of Wisconsin and VA Medical Center 151, 5000 West National Avenue, Milwaukee, WI 53295, USA
    J Biomech 39:375-80. 2006
    ..The flexion/extension curves are asymmetric with a greater magnitude in flexion than in extension. These experimental results will be used to validate FE models of young, normal cervical spines...
  9. ncbi request reprint Role of translational and rotational accelerations on brain strain in lateral head impact
    Jiangyue Zhang
    Medical College of Wisconsin, Milwaukee, WI, USA
    Biomed Sci Instrum 42:501-6. 2006
    ..Results indicated that rotational acceleration contributes more than 90% of total strain, and translational acceleration produces minimal strain. Therefore, the rotational component is a more important biomechanical metric in this study...
  10. ncbi request reprint Validation of a clinical finite element model of the human lumbosacral spine
    Yabo Guan
    Department of Neurosurgery, Medical College of Wisconsin, 9200 West Wisconsin Avenue, Milwaukee, WI 53226, USA
    Med Biol Eng Comput 44:633-41. 2006
    ..Validation results for each loading mode and for each motion segment (L4-L5, L5-S1) and bisegment (L4-S1) are presented in the paper...
  11. ncbi request reprint Automating 3D meshing method for patient-specific modeling
    Yabo Guan
    Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI, USA
    Biomed Sci Instrum 42:199-204. 2006
    ..Both static and dynamic analyses were performed to verify the models. The study for blunt impact of infant head was performed by using these patient-specific models...
  12. ncbi request reprint Biomechanics of the aging spine
    Derek Board
    Dept of Neurosurgery, Medical College of Wisconsin Milwaukee, WI, USA
    Biomed Sci Instrum 42:1-6. 2006
    ..5 and 2.5 Nm. Based on these preliminary findings, validation of finite element modeling to ensure biofidelity should consider age as a factor that may affect biomechanics...
  13. ncbi request reprint Force and acceleration corridors from lateral head impact
    Narayan Yoganandan
    Department of Neurosurgery Medical College of Wisconsin and VA Medical Center, Milwaukee, Wisconsin, USA
    Traffic Inj Prev 5:368-73. 2004
    ..The study underscored the need to enhance the sample size to derive probability-based human tolerance to side impacts...
  14. doi request reprint The continued burden of spine fractures after motor vehicle crashes
    Marjorie C Wang
    Department of Neurosurgery, Medical College of Wisconsin, and the Clement J Zablocki VA Medical Center, Milwaukee, Wisconsin 53226, USA
    J Neurosurg Spine 10:86-92. 2009
    ..The purpose of this study was to evaluate secular trends in the occurrence of spine fractures associated with MVCs and evaluate the association between air bag and seat belt use with spine fractures...
  15. pmc BMI and risk of serious upper body injury following motor vehicle crashes: concordance of real-world and computer-simulated observations
    Shankuan Zhu
    Injury Research Center, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America
    PLoS Med 7:e1000250. 2010
    ..This study examined MVC-related regional body injury and its association with the presence of driver obesity using both real-world data and computer crash simulation...
  16. ncbi request reprint Tapered cages in anterior lumbar interbody fusion: biomechanics of segmental reactions
    Jason Moore
    Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, Wisconsin 53226, USA
    J Neurosurg Spine 5:330-5. 2006
    ..The aim of this study was to determine the in vitro biomechanical responses of lumbar spinal segments after implantation of tapered cages...
  17. doi request reprint Internal and external responses of anterior lumbar/lumbosacral fusion: nonlinear finite element analysis
    Yabo Guan
    Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI 53226, USA
    J Spinal Disord Tech 21:299-304. 2008
    ..Determination of external and internal responses of the human lumbosacral spine using a validated 3-dimensional finite element model...
  18. pmc Injury patterns in side pole crashes
    Frank A Pintar
    Medical College of Wisconsin and VA Medical Center, Milwaukee, Wisconsin, USA
    Annu Proc Assoc Adv Automot Med 51:419-33. 2007
    ..Because the human may be more vulnerable in this type of crash scenario, dummy response and measurements, as well as a re-examination of side injury criteria may be necessary to design appropriate injury-mitigating safety devices...
  19. ncbi request reprint Biomechanical correlates of mild diffuse brain injury in the rat
    Ronald J Fijalkowski
    Department of Neurosurgery, Medical College of Wisconsin and Veterans Affairs Medical Center 9200 West Wisconsin Avenue, Milwaukee, WI 53226, USA
    Biomed Sci Instrum 43:18-23. 2007
    ..Results suggest rotational loading of the rat head has similar correlates to the human condition. In addition, certain biomechanical parameters demonstrate capacity for predicting DBI severity...
  20. ncbi request reprint High-speed 3-D kinematics from whole-body lateral impact sled tests
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, 9200 West Wisconsin Avenue, Milwaukee WI 53226, USA
    Biomed Sci Instrum 43:40-5. 2007
    ..Head and first thoracic vertebral kinematic data are reported in the paper. 3-D motions induced from lateral impacts supplement sensor-based data for improved crashworthiness evaluations...
  21. pmc Response corridors of the human head-neck complex in rear impact
    Brian D Stemper
    Department of Neurosurgery, Medical College of Wisconsin, VA Medical Center, Milwaukee, USA
    Annu Proc Assoc Adv Automot Med 48:149-63. 2004
    ..The corridors were developed to emphasize the detailed validation of dummy response during initial stages of whiplash loading...
  22. ncbi request reprint Regional brain strains and role of falx in lateral impact-induced head rotational acceleration
    Jianrong Li
    Department of Neurosurgery, Medical College of Wisconsin and VA Medical Center, Milwaukee, WI, USA
    Biomed Sci Instrum 43:24-9. 2007
    ..These preliminary findings indicate that the flexibility of falx has an effect on regional brain strains in lateral impact...
  23. ncbi request reprint Intervertebral rotations as a function of rear impact loading
    Brian D Stemper
    Department of Neurosurgery, Medical College of Wisconsin, VA Medical Center, Milwaukee, WI, USA
    Biomed Sci Instrum 38:227-31. 2002
    ..This finding helps to define the kinematics of the cervical spine leading to whiplash injury...
  24. pmc Deflections from two types of human surrogates in oblique side impacts
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, and VA Medical Center, Milwaukee, WI, USA
    Ann Adv Automot Med 52:301-13. 2008
    ..In addition, peak deflections occurred earlier in the dummy than in PMHS. These preliminary results are valuable in future crashworthiness studies...
  25. ncbi request reprint Effects of abnormal posture on capsular ligament elongations in a computational model subjected to whiplash loading
    Brian D Stemper
    Department of Neurosurgery, Medical College of Wisconsin, 9200 West Wisconsin Avenue, VA Medical Center, Milwaukee, WI 53226, USA
    J Biomech 38:1313-23. 2005
    ....
  26. ncbi request reprint Modeling mechanisms of skull base injury for drivers in motor vehicle collisions
    Jonathan R Grant
    Department of Otolaryngology and Communication Sciences, Medical College of Wisconsin, Milwaukee, WI 53226, USA
    Otolaryngol Head Neck Surg 137:195-200. 2007
    ..To develop biomechanical variable models for driver skull base injury mechanisms in motor vehicle collisions...
  27. ncbi request reprint Interface parameters of impact-induced mild traumatic brain injury
    Ronald J Fijalkowski
    Dept of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI, USA
    Biomed Sci Instrum 42:108-13. 2006
    ..This investigation uses a mathematical model based on parameters of a previously developed experimental model to assess the impacting interface such that angular accelerations are sufficient to produce MTBI in the rodent...
  28. ncbi request reprint Preinjury cervical alignment affecting spinal trauma
    Dennis J Maiman
    Department of Neurosurgery, Medical College of Wisconsin, Milwaukee 53226, USA
    J Neurosurg 97:57-62. 2002
    ..The authors tested the hypothesis that initial alignment of the head-neck complex affects cervical spine injury mechanism, trauma rating, injury classification based on stability, and fracture pattern...
  29. pmc Worldsid assessment of far side impact countermeasures
    Frank A Pintar
    Medical College of Wisconsin, Milwaukee Wisconsin, USA
    Annu Proc Assoc Adv Automot Med 50:199-219. 2006
    ..Inboard restraints for far side impacts can be effective in reducing head excursion but the specific design and placement of these restraints determine their overall injury mitigating characteristics...
  30. ncbi request reprint Moment-rotation responses of the human lumbosacral spinal column
    Yabo Guan
    Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, 8701 Watertown Plank Road, WI 53226, USA
    J Biomech 40:1975-80. 2007
    ..These experimental data are useful in the improved validation of FE models, which will increase the confidence of stress analysis and other modeling applications...
  31. ncbi request reprint Level-dependent coronal and axial moment-rotation corridors of degeneration-free cervical spines in lateral flexion
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, 9200 West Wisconsin Avenue, Milwaukee, WI 53226, USA
    J Bone Joint Surg Am 89:1066-74. 2007
    ....
  32. ncbi request reprint Multiple subfailures characterize blunt aortic injury
    Brian D Stemper
    Department of Neurosurgery, Medical College of Wisconsin, and Department of Veterans Affairs Medical Center, Milwaukee, USA
    J Trauma 62:1171-4. 2007
    ..Pathological findings can range from failure of specific vessel layers to immediate vessel wall rupture. The purpose of this investigation was to determine the sequence of local structural events that may lead to aortic wall disruption...
  33. ncbi request reprint Comparison of contemporary occipitocervical instrumentation techniques with and without C1 lateral mass screws
    Christopher E Wolfla
    Department of Neurosurgery, The Medical College of Wisconsin, Milwaukee, Wisconsin 53226, USA
    Neurosurgery 61:87-93; discussion 93. 2007
    ..The results are compared with intact specimens and with constructs incorporating contemporary cabling techniques...
  34. doi request reprint The relationship between lower neck shear force and facet joint kinematics during automotive rear impacts
    Brian D Stemper
    Department of Neurosurgery, Medical College of Wisconsin, 9200 West Wisconsin Avenue, Milwaukee, WI 53226, USA
    Clin Anat 24:319-26. 2011
    ....
  35. doi request reprint Use of postmortem human subjects to describe injury responses and tolerances
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI 53226, USA
    Clin Anat 24:282-93. 2011
    ....
  36. pmc Thoracic injury metrics with side air bag: stationary and dynamic occupants
    Jason J Hallman
    Department of Biomedical Engineering, Marquette University, Milwaukee, Wisconsin, USA
    Traffic Inj Prev 11:433-42. 2010
    ..Therefore, the objective of the present study was to evaluate the effects of torso side air bag deployment on close-proximity occupants, comparing a stationary test protocol with dynamic sled conditions...
  37. doi request reprint Severe-to-fatal head injuries in motor vehicle impacts
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI, USA
    Accid Anal Prev 42:1370-8. 2010
    ..The current field-based analysis has identified the importance of both angular acceleration and contact location in head injury assessment and mitigation...
  38. ncbi request reprint Experimental study of blast-induced traumatic brain injury using a physical head model
    Jiangyue Zhang
    Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI, USA
    Stapp Car Crash J 53:215-27. 2009
    ..These quantitative results also served as the validation and calibration data for computer simulation models of blast brain injuries...
  39. doi request reprint Optimal sensor positioning to track rib deflections from an optical system in the Hybrid III dummy
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, VA Medical Center, Milwaukee, Wisconsin 53226, USA
    Traffic Inj Prev 10:497-505. 2009
    ..Specifically, the study was designed to determine the most efficacious mounting location of light emitting diodes (LEDs) on the ribs and sternum in the 50th percentile male Hybrid III dummy...
  40. ncbi request reprint Physical effects of ejection on the head-neck complex: demonstration of a cadaver model
    Brian D Stemper
    Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI 53226, USA
    Aviat Space Environ Med 80:489-94. 2009
    ..This experimental model can be used for detailed analysis of the effects of gender, head-neck orientation, helmet instrumentation, and acceleration pulse characteristics on cervical spine injury potential during pilot ejection events...
  41. doi request reprint Facial fractures in motor vehicle collisions: epidemiological trends and risk factors
    Brian T McMullin
    Department of Otolaryngology, Medical College of Wisconsin, 9200 W Wisconsin Ave, Milwaukee, WI 53226, USA
    Arch Facial Plast Surg 11:165-70. 2009
    ..To analyze epidemiological trends in facial fractures sustained in motor vehicle collisions and to identify the effects of occupant and crash-specific characteristics on the likelihood of injury...
  42. doi request reprint Neck forces and moments and head accelerations in side impact
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, VA Medical Center, Milwaukee, Wisconsin 53226, USA
    Traffic Inj Prev 10:51-7. 2009
    ..The purpose of the present study was therefore to determine the temporal forces and moments at the upper neck region and head angular accelerations and angular velocities using postmortem human subjects (PMHS)...
  43. doi request reprint Influence of angular acceleration-deceleration pulse shapes on regional brain strains
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin and VA Medical Center, 9200 West Wisconsin Avenue, Milwaukee, WI 53226, USA
    J Biomech 41:2253-62. 2008
    ..Acceleration followed by deceleration pulse produced greater strains in all regions than the other form of biphasic pulse. Thus, pulse shape appears to have an effect on regional strains in the brain...
  44. doi request reprint Anatomical gender differences in cervical vertebrae of size-matched volunteers
    Brian D Stemper
    Department of Neurosurgery, Medical College of Wisconsin, 9200 West Wisconsin Ave, Milwaukee, WI 53226, USA
    Spine (Phila Pa 1976) 33:E44-9. 2008
    ..Structural gender differences may explain altered response to dynamic loading in women leading to increased soft tissue distortion and greater injury susceptibility...
  45. doi request reprint Physical properties of the human head: mass, center of gravity and moment of inertia
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, VA Medical Center, Milwaukee, WI, USA
    J Biomech 42:1177-92. 2009
    ....
  46. pmc Biomechanical and injury response to posterolateral loading from torso side airbags
    Jason J Hallman
    Department of Biomedical Engineering, Marquette University 9200 W Wisconsin Avenue, Milwaukee, WI 53226, USA
    Stapp Car Crash J 54:227-57. 2010
    ..Contrasted with flat rigid or anterolateral loading, biomechanical response to side airbag interaction may be augmented by peak normalized deflection or VCmax at 130°...
  47. pmc Field data on head injuries in side airbag vehicles in lateral impact
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, VA Medical Center, Milwaukee, WI, USA
    Annu Proc Assoc Adv Automot Med 49:171-84. 2005
    ..In this study, some fundamental analyses are presented regarding occupant- and vehicle-related parameters...
  48. ncbi request reprint Anterior longitudinal ligament injuries in whiplash may lead to cervical instability
    Brian D Stemper
    Department of Neurosurgery, Medical College of Wisconsin, 9200 W Wisconsin Ave, Milwaukee, WI 53226, USA
    Med Eng Phys 28:515-24. 2006
    ..Mitigation of whiplash injury may be achieved by minimizing head retraction during initial stages of whiplash...
  49. ncbi request reprint Effect of head restraint backset on head-neck kinematics in whiplash
    Brian D Stemper
    Department of Neurosurgery, Medical College of Wisconsin, USA
    Accid Anal Prev 38:317-23. 2006
    ....
  50. ncbi request reprint Methodology to study intimal failure mechanics in human internal carotid arteries
    Brian D Stemper
    Department of Neurosurgery, Medical College of Wisconsin, WI 53295, USA
    J Biomech 38:2491-6. 2005
    ..These data will assist in the understanding of blunt carotid artery injuries, its diagnosis and treatment...
  51. ncbi request reprint Type II odontoid fracture from frontal impact: case report and biomechanical mechanism of injury
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, Wisconsin 53226, USA
    J Neurosurg Spine 2:481-5. 2005
    ..It may be more important to use seat belts than to depend on the airbag alone for protection from injury...
  52. ncbi request reprint New mechanism for inducing closed head injury in the rat
    Benjamin M Ellingson
    Medical College of Wisconsin and VA Medical Center, 5000 West National Ave, Research 151, Milwaukee, Wisconsin 53295, USA
    Biomed Sci Instrum 41:86-91. 2005
    ..Magnitudes and durations at these levels have not been produced in the rat by rotational loading caused by impact, and due to the flexibility of the design, these parameters can be further increased...
  53. ncbi request reprint Responses of side impact dummies in sled tests
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin and VA Medical Center, 9200 West Wisconsin Avenue, Milwaukee, WI 53226, USA
    Accid Anal Prev 37:495-503. 2005
    ..Response variations will be of value in improving the biofidelity characteristics of dummies for crashworthiness evaluations...
  54. ncbi request reprint A finite element model of region-specific response for mild diffuse brain injury
    Ronald J Fijalkowski
    Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
    Stapp Car Crash J 53:193-213. 2009
    ..Although not fully conclusive, these results are valuable in the understanding of diffuse brain injury pathologies following rotational loading...
  55. ncbi request reprint Influence of muscle contraction on whiplash kinematics
    Brian D Stemper
    Medical College of Wisconsin, VA Medical Center, Milwaukee, Wisconsin, USA
    Biomed Sci Instrum 40:24-9. 2004
    ....
  56. ncbi request reprint Anatomic study of the morphology of human cervical facet joint
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, Department of Biomedical Engineering, Marquette University and VA Medical Center, Milwaukee, WI 53226, USA
    Spine (Phila Pa 1976) 28:2317-23. 2003
    ..Geometrical properties of the facet joint including cartilage thickness and gap were obtained using human cadaver cervical spinal columns and cryomicrotomy techniques...
  57. ncbi request reprint Gender dependent cervical spine segmental kinematics during whiplash
    Brian D Stemper
    Department of Neurosurgery, Medical College of Wisconsin, 9200 West Wisconsin Avenue, 53226, Milwaukee, WI, USA
    J Biomech 36:1281-9. 2003
    ....
  58. ncbi request reprint Biomechanical analyses of whiplash injuries using an experimental model
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, Milwaukee 53226, USA
    Accid Anal Prev 34:663-71. 2002
    ..The pinching mechanism of the facet joints can be correlated to neck pain. The kinematics of the soft tissue-related structures explain the mechanism of these common whiplash associated disorders...
  59. ncbi request reprint Reflex muscle contraction in the unaware occupant in whiplash injury
    Brian D Stemper
    Department of Neurosurgery, Medical College of Wisconsin, Milwaukee 53295, USA
    Spine (Phila Pa 1976) 30:2794-8; discussion 2799. 2005
    ..Computer modeling and parametric analysis were used to determine the effect of reflex contraction of the neck muscles in the unaware occupant in whiplash...
  60. ncbi request reprint Localized cervical facet joint kinematics under physiological and whiplash loading
    Brian D Stemper
    Department of Neurosurgery, Medical College of Wisconsin, WI 53295, USA
    J Neurosurg Spine 3:471-6. 2005
    ..The purpose of this investigation was to quantify the correlation between facet joint and segmental motions under physiological and whiplash loading...
  61. ncbi request reprint Trabecular bone density of male human cervical and lumbar vertebrae
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, 53226, USA
    Bone 39:336-44. 2006
    ..Significant variations in densities among neck vertebrae, unlike the low back counterpart, may underscore the need to treat these bones as different structures...
  62. ncbi request reprint Exposure to pulsed magnetic fields enhances motor recovery in cats after spinal cord injury
    Maria J Crowe
    Neuroscience Research Laboratories, The Clement J Zablocki VA Medical Center, Milwaukee, WI 53295, USA
    Spine (Phila Pa 1976) 28:2660-6. 2003
    ..Animal model study of eight healthy commercial cats was conducted...
  63. ncbi request reprint Biomechanical strength of reconstruction plates when used for medial support of MED-El cochlear implants: implications for diagnostic MRI
    David M Poetker
    Department of Otolaryngology and Communication Sciences, Medical College of Wisconsin, Milwaukee, WI 53226, USA
    ORL J Otorhinolaryngol Relat Spec 68:77-82. 2006
    ..5-tesla MRI...
  64. pmc Lateral impact injuries with side airbag deployments--a descriptive study
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, VA Medical Center, Milwaukee, WI 53226, USA
    Accid Anal Prev 39:22-7. 2007
    ....
  65. pmc Brain strains in vehicle impact tests
    Jiangyue Zhang
    Department of Neurosurgery, Medical College of Wisconsin, VA Medical Center, Milwaukee, WI, USA
    Annu Proc Assoc Adv Automot Med 50:1-12. 2006
    ..3 to 9.4 krad/s ( 2 ) ) or HIC (68-778). Rotational accelerations appeared to be the major cause of strain-induced brain injury...
  66. ncbi request reprint Bone mineral density of human female cervical and lumbar spines from quantitative computed tomography
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, and VA Medical Center, Milwaukee 53226, USA
    Spine (Phila Pa 1976) 31:73-6. 2006
    ..This study determined bone mineral density (BMD) of cervical, thoracic, and lumbar vertebrae in healthy asymptomatic human subjects...
  67. ncbi request reprint Stabilizing effect of precontracted neck musculature in whiplash
    Brian D Stemper
    Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI 53226, USA
    Spine (Phila Pa 1976) 31:E733-8. 2006
    ..This study investigated the effect of neck muscle precontraction in aware occupants in whiplash. Head angulation relative to T1 and facet joint capsular ligament distractions were compared between aware and unaware occupants...
  68. ncbi request reprint Mechanics of arterial subfailure with increasing loading rate
    Brian D Stemper
    Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI 53226, USA
    J Biomech 40:1806-12. 2007
    ....
  69. doi request reprint Sensitivity of THOR and Hybrid III dummy lower neck loads to belt systems in frontal impact
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, Wisconsin 53226, USA
    Traffic Inj Prev 12:88-95. 2011
    ..Peak values normalized with respect to the belt type A were used in the comparative analysis. Metrics transformed to the occipital condyles and T1 were also evaluated...
  70. pmc Injury biomechanics of C2 dens fractures
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, VA Medical Center, Milwaukee, USA
    Annu Proc Assoc Adv Automot Med 48:323-37. 2004
    ....
  71. pmc Obesity and risk for death due to motor vehicle crashes
    Shankuan Zhu
    Injury Research Center and Dept of Family and Community Medicine, Medical College of Wisconsin, 8701 Watertown Plank Rd, Milwaukee, WI 53226, USA
    Am J Public Health 96:734-9. 2006
    ..We examined the role of body mass index (BMI) and other factors in driver deaths within 30 days after motor vehicle crashes...
  72. pmc Biomechanics of foot/ankle trauma with variable energy impacts
    Kathryn Gallenberger
    Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI
    Ann Adv Automot Med 57:123-32. 2013
    ..In dorsiflexion, 50% probability occurred at 7900 N, but the regression was not statistically significant. These preliminary results indicate dorsiflexed specimens fracture at a higher force than neutral specimens. ..
  73. ncbi request reprint Head motions using nine accelerometer package and angular rate sensors
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, VA Medical Center, Milwaukee, WI, USA
    Biomed Sci Instrum 44:256-61. 2008
    ..It may be prudent to use both sensors to obtain linear and angular acceleration and rotational velocity data from impact tests...
  74. ncbi request reprint Orbital blowout fractures: experimental evidence for the pure hydraulic theory
    John S Rhee
    Department of Otolaryngology and Communication Sciences, MCW Clinic at Froedtert West, Milwaukee, WI 53226, USA
    Arch Facial Plast Surg 4:98-101. 2002
    ..The "hydraulic" theory proposes that a generalized increased orbital content pressure results in direct compression and fracturing of the thin orbital bone...
  75. ncbi request reprint Subcatastrophic failure characteristics of the porcine descending aorta
    Brian D Stemper
    Medical College of Wisconsin and VA Medical Center, 5000 W National Ave, Research 151, Milwaukee, WI 53295, USA
    Biomed Sci Instrum 41:110-5. 2005
    ..Although the porcine descending aorta may not be particularly susceptible to distraction failure, this vessel may be a suitable model for human arterial tissue due to similarities in geometric size and vessel structure...
  76. doi request reprint Upper neck forces and moments and cranial angular accelerations in lateral impact
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, 9200 West Wisconsin Avenue, Milwaukee, WI, 53226, USA
    Ann Biomed Eng 36:406-14. 2008
    ..Findings from this study with a limited dataset are valuable in establishing response corridors for side impacts and evaluating side impact dummies used in crashworthiness and safety-engineering studies...
  77. ncbi request reprint Temporal cavity and pressure distribution in a brain simulant following ballistic penetration
    Jiangyue Zhang
    Department of Veterans Affairs Medical Center, Milwaukee, Wisconsin, USA
    J Neurotrauma 22:1335-47. 2005
    ..Pressures reached approximately +2 atmospheric pressure when temporary cavities collapsed. These quantified data may assist in understanding injury biomechanics and management of penetration brain trauma...
  78. ncbi request reprint Effects of total facetectomy on the stability of lumbosacral spine
    Yabo Guan
    Department of Neurosurgery, Medical College of Wisconsin and Zablocki VA Medical Center, Milwaukee, WI, USA
    Biomed Sci Instrum 43:81-5. 2007
    ..Flexion, extension, and axial torsion were applied using pure moment protocols. Total facetectomy increased spinal instability significantly under extension and axial rotation and not under flexion...
  79. doi request reprint Normative segment-specific axial and coronal angulation corridors of subaxial cervical column in axial rotation
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, VA Medical Center, Milwaukee, WI 53226, USA
    Spine (Phila Pa 1976) 33:490-6. 2008
    ..Axial and coronal moment-angulation corridors were determined at every level of the subaxial cervical spine, expressed as logarithmic functions, and level-specificity of range of motion and neutral zones were evaluated...
  80. ncbi request reprint Mechanics of fresh, refrigerated, and frozen arterial tissue
    Brian D Stemper
    Department of Neurosurgery, Medical College of Wisconsin and Department of Veterans Affairs Medical Center, Milwaukee, Wisconsin 53226, USA
    J Surg Res 139:236-42. 2007
    ..Clinically relevant intimal failures can be reproduced and injury mechanics determined while adhering to experimental protocols of freezing specimens before testing. However, short-term tissue refrigeration may affect mechanics...
  81. doi request reprint Chest deflections and injuries in oblique lateral impacts
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, VA Medical Center, Milwaukee, Wisconsin 53226, USA
    Traffic Inj Prev 9:162-7. 2008
    ..These response data are valuable in oblique lateral impact assessments...
  82. ncbi request reprint Rear impact responses of different sized adult Hybrid III dummies
    John DeRosia
    Department of Neurosurgery, Medical College of Wisconsin, VA Medical Center, Milwaukee, Wisconsin, USA
    Traffic Inj Prev 5:50-5. 2004
    ..These findings underscore the need to include subject anthropometry in addition to seat and head restraint characteristics for better assessment of rear impact responses...
  83. ncbi request reprint Biomechanics of temporo-parietal skull fracture
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, 9200 West Wisconsin Avenue, Milwaukee, WI 53226, USA
    Clin Biomech (Bristol, Avon) 19:225-39. 2004
    ..The importance of using appropriate instrumentation to derive injury metrics is underscored to guide future experiments...
  84. ncbi request reprint Experimental model for civilian ballistic brain injury biomechanics quantification
    Jiangyue Zhang
    Department of Neurosurgery, Medical College of Wisconsin, 9200 West Wisconsin Avenue, Milwaukee, WI 53226, USA
    J Biomech 40:2341-6. 2007
    ..Models using Sylgard gel and FMJ projectiles are appropriate to enhance understanding and mechanisms of ballistic brain injury...
  85. ncbi request reprint Deflection, acceleration, and force corridors for small females in side impacts
    Narayan Yoganandan
    Department of Neurosurgery, Medical College of Wisconsin, 9200 West Wisconsin Avenue, Milwaukee, WI 53226, USA
    Traffic Inj Prev 6:379-86. 2005
    ..This study was undertaken to develop biomechanical corridors applicable to the small-sized female in side impacts...
  86. pmc Biomechanics of side impact: injury criteria, aging occupants, and airbag technology
    Narayan Yoganandan
    Department of Neurosurgery, 9200 West Wisconsin Avenue, Medical College of Wisconsin, VA Medical Center, Milwaukee, WI, USA
    J Biomech 40:227-43. 2007
    ....
  87. ncbi request reprint Gender- and region-dependent local facet joint kinematics in rear impact: implications in whiplash injury
    Brian D Stemper
    Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI 53226, USA
    Spine (Phila Pa 1976) 29:1764-71. 2004
    ..Localized facet joint kinematics resulting from whiplash acceleration were analyzed in the dynamic domain during the time of cervical S-curvature using intact head and neck specimens and a pendulum mini-sled loading apparatus...
  88. ncbi request reprint Risk of pediatric head injury after motor vehicle accidents
    Cheryl A Muszynski
    Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, Wisconsin 53226, USA
    J Neurosurg 102:374-9. 2005
    ..The authors analyze the correlation between the relative risk of pediatric brain injury and the use of child safety seats (CSSs)...
  89. ncbi request reprint Odontoid fracture in motor vehicle environments
    Narayan Yoganandan
    Biomedical Engineering, Department of Neurosurgery, Medical College of Wisconsin, VA Medical Center, 9200 West Wisconsin Avenue, Milwaukee, WI 53226, USA
    Accid Anal Prev 37:505-14. 2005
    ..e., fracture type, and the associated mechanism of injury. The mechanism component in any epidemiologically based injury analyses is valuable to advance improvements in vehicle crashworthiness...

Research Grants3

  1. BIOENGINEERING ANALYSIS OF SIDE IMPACT INJURIES TO OLDER DRIVERS
    Frank Pintar; Fiscal Year: 2007
    ..This multifaceted design will duplicate side impacts in a controlled laboratory environment for in-position and out-of-position occupants for young and old age groups. ..