Relation between Symptom Duration and Abnormal Spontaneous Activity in S1 Radiculopathy
Journal of the Korean Academy of Rehabilitation Medicine
;
: 609-614, 2001.
Article
in Korean
| WPRIM
| ID: wpr-724074
ABSTRACT
OBJECTIVE:
It is a widely accepted belief that paraspinal muscles tend to show spontaneous activity on needle electromyography early on in a radiculopathy and distal muscles become abnormal later on. But most studies have shown the limitations of using symptom duration when interpreting electrodiagnostic findings in radiculopathy. The purpose of this study was to determine the relationship between symptom duration and abnormal spontaneous activity in S1 radiculopathy confined to abnormal H-reflex.METHOD:
A retrospective study that collected the informations on symptom duration and spontaneous activity in paraspinal muscle and gastrocnemius for 112 patients with S1 radiculopathy diagnosed by unilateral H-reflex abnormality was undertaken.RESULTS:
Abnormal spontaneous activity in paraspinal muscle had shown a significant negative correlation with symptom duration, that is a tendency to decrease its expression over symptom duration. On the contrary abnormal spontaneous activity in gastrocnemius muscle was rare at first a few weeks and became to show after 7 weeks. Patients with symptom duration over 1 year had higher incidence of having no abnormal spontaneous activities both in paraspinal and gastrocnemius muscle.CONCLUSION:
These results suggested that symptom duration had a potential role in the diagnosis of S1 radiculopathy when H-reflex were abnormal unilaterally.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Radiculopathy
/
Incidence
/
Retrospective Studies
/
Muscle, Skeletal
/
Diagnosis
/
Electromyography
/
Paraspinal Muscles
/
H-Reflex
/
Muscles
/
Needles
Type of study:
Diagnostic study
/
Incidence study
/
Observational study
/
Prognostic study
Limits:
Humans
Language:
Korean
Journal:
Journal of the Korean Academy of Rehabilitation Medicine
Year:
2001
Type:
Article
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