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Journal of Korean Neurosurgical Society 2006;40(6): 419-422.
Percutaneous Radiofrequency Facet Rhizotomy for Cervical Dorsal Ramus Syndrome.
Tack Geun Cho, Sung Nam Hwang, Seung Won Park, Taek Kyun Nam, Hyun Jong Hong, Young Baeg Kim
Department of Neurosurgery, College of Medicine, Chung-Ang University, Seoul, Korea. tarheelk@hanmail.net
ABSTRACT
OBJECTIVE
Radiofrequency facet rhizotomy(RFFR) has been widely performed for treatment of chronic neck pain caused by cervical dorsal ramus syndrome(CDRS). To evaluate the therapeutic effectiveness of RFFR in the patients with CDRS, we analyzed patients with various cervical pathologic conditions.
METHODS
The therapeutic results in forty-four patients who underwent RFFR for CDRS from January, 2000 to December, 2002 were analyzed according to the underlying pathologic conditions causing CDRS. The pathologic conditions were sprain (33 cases), herniated nucleus pulposus (6), foraminal stenosis (4), and compression fracture (1). The therapeutic results were evaluated one month after the operation and graded as excellent, good, fair or poor. Treatments were considered successful if the therapeutic results were graded as either excellent or good.
RESULTS
The overall success rate in all patients was 72.7%. The success rate for treatment of cases with cervical sprain was 87.9%, but treatment of cases with herniated nucleus pulposus, foraminal stenosis, and fracture showed unsatisfactory results (mean success rate was 27.3%). Some patients complained of transient hypesthesia (4 cases) or transient dull pain at the electrode insertion sites (2 cases).
CONCLUSION
RFFR is an effective and safe treatment for CDRS caused by cervical sprain, regardless of the patient's age, the duration of the symptoms, and the presence of radiating pain.
Key Words: Chronic neck pain; Cervical dorsal ramus syndrome; Radiofrequency facet rhizotomy
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