The Effect of the Pedicle-Facet Angle on Degenerative Cervical Spondylolisthesis
Journal of Korean Neurosurgical Society
;
: 341-345, 2015.
Article
in English
| WPRIM
| ID: wpr-168889
ABSTRACT
OBJECTIVE:
To measure the orientation of the facet joints of cervical spine (C-spine) segments in the sagittal plane, known as the pedicle-facet (P-F) angle, and to use these measurements to evaluate the relationship between the P-F angle and the amount of vertebral anterolisthesis in patients with degenerative cervical spondylolisthesis (DCS).METHODS:
A retrospective case-control study was performed including 30 age- and sex-matched patients with DCS and 30 control participants. Anterior-posterior and lateral view radiographs of the C-spine were obtained in a standing position. The P-F angle at all cervical levels and the amount of anterolisthesis at C4-5 were measured from lateral view plain radiographs.RESULTS:
The P-F angles at C4-5 were 141.14+/-7.14degrees for the DCS group and 130.53+/-13.50degrees (p=0.012) for the control group, and at C5-6 were 137.46+/-8.53degrees for the DCS group and 128.53+/-16.01degrees for the control group (p=0.001). The mean P-F angle at C4-5 did not correlate with the amount of anterolisthesis (p=0.483). The amount of anterior slippage did correlate with age (p<0.001).CONCLUSION:
The P-F angle was intrinsically higher at C4-5, compared to C5-6, in both the DCS and control groups, which might explain the increased likelihood for anterolisthesis of C4. Higher P-F angles in the DCS group may be a predisposing factor to slippage. The P-F angle may interact with age to increase incidence of anterolisthesis with increasing age.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Spine
/
Spondylolisthesis
/
Case-Control Studies
/
Incidence
/
Causality
/
Retrospective Studies
/
Zygapophyseal Joint
Type of study:
Incidence study
/
Observational study
/
Prognostic study
/
Risk factors
Limits:
Humans
Language:
English
Journal:
Journal of Korean Neurosurgical Society
Year:
2015
Type:
Article
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