High-frequency thermal coagulation to treat middle cluneal nerve entrapment neuropathy

Objective Middle cluneal nerve entrapment (MCN-E) around the sacroiliac joint can elicit low back pain (LBP). Pain control can be obtained with anesthetic nerve blocks; however, when their effectiveness is transient, surgical release may be necessary. We investigated the efficacy of radiofrequency t...

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Bibliographic Details
Published in:Acta neurochirurgica 2021-03, Vol.163 (3), p.823-828
Main Authors: Fujihara, Fumiaki, Kim, Kyongsong, Kokubo, Rinko, Isu, Toyohiko, Miki, Koichi, Morimoto, Daijiro, Iwamoto, Naotaka, Inoue, Tooru, Morita, Akio
Format: Article
Language:English
Subjects:
Ablation
Interventional Radiology
Low back pain
Medicine
Medicine & Public Health
Minimally Invasive Surgery
Neurology
Neuropathy
Neuroradiology
Neurosurgery
Original Article - Peripheral Nerves
Pain
Peripheral Nerves
Surgical Orthopedics
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Summary:Objective Middle cluneal nerve entrapment (MCN-E) around the sacroiliac joint can elicit low back pain (LBP). Pain control can be obtained with anesthetic nerve blocks; however, when their effectiveness is transient, surgical release may be necessary. We investigated the efficacy of radiofrequency thermocoagulation (RFTC) in patients with MCN-E. Methods Between December 2018 and August 2019, 11 consecutive patients (4 men, 7 women; mean age 76.4 years) with intractable medial buttock pain due to MCN-E underwent MCN RFTC. The mean symptom duration was 49.5 months; pre-RFTC local MCN blocks provided pain relief for a mean of 7.7 days. The severity of pain in the medial buttock due to MCN-E was recorded before and 2, 6, 12, and 24 weeks after RFTC on the numerical rating scale (NRS) and the Roland-Morris Disability Questionnaire (RDQ). Results All patients reported pain alleviation; there were no complications. While there was a significant difference in the pre- and post-RFTC treatment NRS ( p  
ISSN:0001-6268
0942-0940
DOI:10.1007/s00701-020-04404-8