Analysis of the morphometric characteristics of the thoracic and lumbar pedicles
…, A Doornik, EH Widell, GW Knight, AG Patwardhan… - Spine, 1987 - journals.lww.com
A total of 2,905 pedicle measurements were made from T1–L5. Measurements were made
from spinal computerized tomography (CT) scan examinations and individual vertebral …
from spinal computerized tomography (CT) scan examinations and individual vertebral …
The biomechanical effect of postoperative hypolordosis in instrumented lumbar fusion on instrumented and adjacent spinal segments
S Umehara, MR Zindrick, AG Patwardhan, RM Havey… - 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 …
posterolateral lumbar fusions using transpedicular instrumentation. The biomechanical effects …
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 …
Objective. To assess the response of the whole lumbar spine to a compressive follower …
Comparison of posterior and transforaminal approaches to lumbar interbody fusion
SC Humphreys, SD Hodges, AG Patwardhan, JC Eck… - Spine, 2001 - journals.lww.com
Study Design. A study of the transforaminal lumbar interbody fusion and the posterior lumbar
interbody fusion techniques was performed. Objectives. To describe the transforaminal …
interbody fusion techniques was performed. Objectives. To describe the transforaminal …
Test protocols for evaluation of spinal implants
VK Goel, MM Panjabi, AG Patwardhan, AP Dooris… - JBJS, 2006 - journals.lww.com
Prior to implantation, medical devices are subjected to rigorous testing to ensure safety and
efficacy. A full battery of testing protocols for implantable spinal devices may include many …
efficacy. A full battery of testing protocols for implantable spinal devices may include many …
Novel model to analyze the effect of a large compressive follower pre-load on range of motions in a lumbar spine
SM Renner, RN Natarajan, AG Patwardhan… - 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 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 …
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 …
specimens. Objective. To assess the response of the cervical spine to a compressive follower …
Balloon kyphoplasty for the treatment of pathological vertebral compressive fractures
…, MN Tzermiadianos, DS Pasku, AG Patwardhan - European Spine …, 2005 - Springer
Background Previous clinical studies have shown the safety and effectiveness of balloon
kyphoplasty in the treatment of pathological vertebral compression fractures (VCFs). However, …
kyphoplasty in the treatment of pathological vertebral compression fractures (VCFs). However, …
Effect of physiological loads on cortical and traditional pedicle screw fixation
…, G Carandang, AJ Ghanayem, AG Patwardhan - 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 …
strength of laterally directed, cortical pedicle screws under physiological loads. Summary of …