Microsurgical Foraminotomy via Wiltse Paraspinal Approach for Foraminal or Extraforaminal Stenosis at L5-S1 Level : Risk Factor Analysis for Poor Outcome
Journal of Korean Neurosurgical Society
;
: 610-614, 2016.
Article
in English
| WPRIM
| ID: wpr-56258
ABSTRACT
OBJECTIVE:
The purpose of this study was to present the outcome of the microsurgical foraminotomy via Wiltse paraspinal approach for foraminal or extraforaminal (FEF) stenosis at L5–S1 level. We investigated risk factors associated with poor outcome of microsurgical foraminotomy at L5–S1 level.METHODS:
We analyzed 21 patients who underwent the microsurgical foraminotomy for FEF stenosis at L5–S1 level. To investigate risk factors associated with poor outcome, patients were classified into two groups (success and failure in foraminotomy). Clinical outcomes were assessed by the visual analogue scale (VAS) scores of back and leg pain and Oswestry disability index (ODI). Radiographic parameters including existence of spondylolisthesis, existence and degree of coronal wedging, disc height, foramen height, segmental lordotic angle (SLA) on neutral and dynamic view, segmental range of motion, and global lumbar lordotic angle were investigated.RESULTS:
Postoperative VAS score and ODI improved after foraminotomy. However, there were 7 patients (33%) who had persistent or recurrent leg pain. SLA on neutral and extension radiographic films were significantly associated with the failure in foraminotomy (p17.3°) and extension radiographic films (>24°).
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
X-Ray Film
/
Spondylolisthesis
/
Risk Factors
/
Factor Analysis, Statistical
/
Range of Motion, Articular
/
Constriction, Pathologic
/
Foraminotomy
/
Leg
/
Lordosis
/
Lumbar Vertebrae
Type of study:
Etiology study
/
Risk factors
Limits:
Animals
/
Humans
Language:
English
Journal:
Journal of Korean Neurosurgical Society
Year:
2016
Type:
Article
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