A follower load increases the load-carrying capacity of the lumbar spine in compression

AG Patwardhan, RM Havey, KP Meade, B Lee… - Spine, 1999 - journals.lww.com
Study Design. An experimental approach was used to test human cadaveric spine specimens.
Objective. To assess the response of the whole lumbar spine to a compressive follower …

The biomechanical effect of postoperative hypolordosis in instrumented lumbar fusion on instrumented and adjacent spinal segments

…, RM Havey, LA Vrbos, GW Knight, S Miyano, M Kirincic… - Spine, 2000 - journals.lww.com
Study Design. Change in lumbar lordosis was measured in patients that had undergone
posterolateral lumbar fusions using transpedicular instrumentation. The biomechanical effects …

Novel model to analyze the effect of a large compressive follower pre-load on range of motions in a lumbar spine

…, RN Natarajan, AG Patwardhan, RM Havey… - Journal of …, 2007 - Elsevier
A 3-D finite element model (FEM) of the lumbar spine (L1–S1) was used to determine the
effect of a large compressive follower pre-load on range of motions (ROM) in all three planes. …

Effect of compressive follower preload on the flexion–extension response of the human lumbar spine

AG Patwardhan, RM Havey… - Journal of …, 2003 - Wiley Online Library
Traditional experimental methods are unable to study the kinematics of whole lumbar spine
specimens under physiologic compressive preloads because the spine without active …

Load-carrying capacity of the human cervical spine in compression is increased under a follower load

AG Patwardhan, RM Havey, AJ Ghanayem, H Diener… - Spine, 2000 - journals.lww.com
Study Design. An experimental approach was used to test human cadaveric cervical spine
specimens. Objective. To assess the response of the cervical spine to a compressive follower …

Effect of physiological loads on cortical and traditional pedicle screw fixation

DA Baluch, AA Patel, B Lullo, RM Havey, LI Voronov… - Spine, 2014 - journals.lww.com
Study Design. Human cadaveric biomechanical study. Objective. To determine the fixation
strength of laterally directed, cortical pedicle screws under physiological loads. Summary of …

The role of the interosseous membrane and triangular fibrocartilage complex in forearm stability

RS Rabinowitz, TR Light, RM Havey… - The Journal of hand …, 1994 - Elsevier
This study investigated the relative roles of the interosseous membrane (IOM) and triangular
fibrocartilage complex (TFCC) in the transmission of force from the hand to the humerus. …

Cervical sagittal balance: a biomechanical perspective can help clinical practice

AG Patwardhan, S Khayatzadeh, RM Havey… - European Spine …, 2018 - Springer
Purpose In this article, we summarize our work on understanding the influence of cervical
sagittal malalignment on the mechanics of the cervical spine. Methods Biomechanical studies …

Animal models of spinal cord contusion injuries

T Khan, RM Havey, ST Sayers… - Comparative …, 1999 - ingentaconnect.com
Background and Purpose: Traumatic spinal cord injury causes initial mechanical disruption
of tissue, leading to a complex secondary sequence of pathophysiologic changes and …

Does screw configuration affect subtrochanteric fracture after femoral neck fixation?

…, HD Summers, M Sartori, RM Havey… - … Research (1976-2007 …, 2006 - journals.lww.com
A subtrochanteric femur fracture after cannulated screw fixation of a femoral neck fracture is
a devastating complication. We hypothesized that an apex-distal screw orientation would …