Study Design. A lateral radiographic analysis of the cervical spine was performed on 20
asymptomatic volunteers. Objectives. To quantify the contribution of each cervical segment to …

Study Design. Cervical flexion, extension, protrusion, and retraction were comparatively
measured in volunteers using a cervical range-of-motion device (Performance Attainment …

Clark BC, Manini TM, Ordway NR, Ploutz-Snyder LL. Leg muscle activity during walking
with assistive devices at varying levels of weight bearing. Arch Phys Med Rehabil 2004;85:1555…

Study Design. A biomechanical study evaluating the safety and efficacy of unicortical versus
bicortical lateral mass screws in the cervical spine. Objectives. To analyze the safety, pullout …

Study Design. An in vitro biomechanical study of posterior lumbar interbody fusion (PLIF) with
threaded cages was performed on 18 bovine lumbar functional spinal units. Objectives. To …

Study Design. In vitro biomechanical study. Objectives. This biomechanical study was
designed to evaluate the loss of endplate integrity with incremental removal of the endplate. …

Cervical interbody device subsidence can result in screw breakage, plate dislodgement, and/or
kyphosis. Preoperative bone density measurement may be helpful in predicting the …

Strength training for older adults is increasingly common, yet surprisingly little research has
evaluated the reliability of strength testing protocols in this population. Thirty-three volunteers …

Graft subsidence following anterior cervical reconstruction can result in the loss of sagittal
balance and recurring foraminal stenosis. This study examined the implant–endplate interface …

Objective This was designed to precisely measure motion after posterior dynamic stabilization
using Dynesys instrumentation. Summary of Background Data The Dynesys posterior …