Menu
Menu
19 Harley St, London, W1G 9QJ, UK
We are London's Top Spine Clinic

The significance of multifidus atrophy after successful radiofrequency neurotomy for low back pain.

Related Articles

The significance of multifidus atrophy after successful radiofrequency neurotomy for low back pain.

PM R. 2009 Aug;1(8):719-22

Authors: Dreyfuss P, Stout A, Aprill C, Pollei S, Johnson B, Bogduk N

Abstract
OBJECTIVE: To determine the presence of lumbar multifidus atrophy and pain after successful lumbar medial branch radiofrequency neurotomy for zygapophysial joint mediated pain.
DESIGN: A prospective observational analysis of 5 patients who had undergone successful unilateral radiofrequency neurotomy (RFN) of the lumbar medial branch divisions of the lumbar dorsal rami. At 17 to 26 months after RFN, 3 blinded radiologists evaluated the relative composition and size of the multifidus muscle at different segmental levels on lumbar magnetic resonance imaging (MRI). They were asked to determine the lesioned levels by evidence of multifidus atrophy. The accuracy of predicting the correct side and level lesioned was evaluated.
SETTING: Private spine practice in Tyler, Texas.
PATIENTS: Five patients who had unilateral lumbar medial branch RFN for proven lumbar zygapophysial joint-mediated pain were selected.
INTERVENTIONS: MRI of the lumbar spine at a mean of 21 months (range, 17-26) after successful lumbar RFN.
OUTCOME MEASURES: Multifidus atrophy on a lumbar MRI, pain assessment and use of cointerventions.
RESULTS: Diffuse lumbar multifidus atrophy was detectable with MRI. However, radiologists could not reliably predict the side and segments lesioned. Despite denervation of the multifidus, at 12 months after RFN all subjects had ongoing pain relief and did not require or request additional treatment.
CONCLUSIONS: This preliminary study provides evidence that successful medial branch RFN for lumbar zygapophysial-mediated pain does cause initial denervation but no discernable segmental atrophy of the multifidus at long-term follow-up. Previous denervation and diffuse atrophy in these subjects was not associated with pain.

PMID: 19695523 [PubMed – indexed for MEDLINE]

Share to care...

Share on facebook
Facebook
Share on twitter
Twitter
Share on pinterest
Pinterest
Share on google
Google+
Share on linkedin
LinkedIn
Share on skype
Skype

What we do...

The Harley Street Hospital

Testimonials

What is London spine unit and How it Works

The London Spine Unit was established in 2005 and has successfully treated over 5000 patients. All conditions are treated.

We treat all spinal disorders

The London Spine Unit specialises in Minimally Invasive Treatments allowing rapid recovery and return to normal function

Trusted by patients worldwide

The London Spine Unit provides the highest quality care to all patients and has VIP services for those seeking exceptional services

What our patients say about us ......

Balloon Kyphoplasty procedure

Wonderful operation. Delighted with results. Marian H. You May Also Like:Patient with cervical spondylosisSevere SciaticaNerve Root & Facet Joint Injections for Treatment of Right Leg

Read More »