Summary: SPINE Volume 30, Number 14, pp E406E413
©2005, Lippincott Williams & Wilkins, Inc.
A New Technique for Digital Fluoroscopic Video
Assessment of Sagittal Plane Lumbar Spine Motion
Deydre S. Teyhen, PT, PhD, OCS,* Timothy W. Flynn, PT, PhD, OCS, FAAOMPT,§
Alan C. Bovik, PhD,¶ and Lawrence D. Abraham, EdD
Study Design. Methodological reliability.
Objective. Develop a measurement technique to as-
sess dynamic motion of the lumbar spine using enhanced
digital fluoroscopic video (DFV) and a distortion compen-
sated roentgen analysis (DCRA).
Summary of Background Data. Controversy over both
the definition and consequences of lumbar segmental
instability persists. Information from static imaging has
had limited success in providing an understanding of this
disorder. DFV has the potential to provide further infor-
mation about lumbar segmental instability; however, the
image quality is poor and clinical application is limited.
Methods. DFV from 20 male subjects (11 with and nine
without low back pain) were obtained during eccentric