Microsurgical Decompression for Peroneal Nerve Entrapment Neuropathy

Peroneal nerve entrapment neuropathy (PNEN) is one cause of numbness and pain in the lateral lower thigh and instep, and of motor weakness of the extensors of the toes and ankle. We report a less invasive surgical procedure performed under local anesthesia to treat PNEN and our preliminary outcomes....

Full description

Saved in:
Bibliographic Details
Published in:Neurologia medico-chirurgica 2015, Vol.55(8), pp.669-673
Main Authors: MORIMOTO, Daijiro, ISU, Toyohiko, KIM, Kyongsong, SUGAWARA, Atsushi, YAMAZAKI, Kazuyoshi, CHIBA, Yasuhiro, IWAMOTO, Naotaka, ISOBE, Masanori, MORITA, Akio
Format: Article
Language:English
Subjects:
clinical outcome
entrapment neuropathy
microsurgical decompression
Original
peroneal nerve
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Peroneal nerve entrapment neuropathy (PNEN) is one cause of numbness and pain in the lateral lower thigh and instep, and of motor weakness of the extensors of the toes and ankle. We report a less invasive surgical procedure performed under local anesthesia to treat PNEN and our preliminary outcomes. We treated 22 patients (33 legs), 7 men and 15 women, whose average age was 66 years. The mean postoperative follow-up period was 40 months. All patients complained of pain or paresthesia of the lateral aspect of affected lower thigh and instep; all manifested a Tinel-like sign at the entrapment point. As all had undergone unsuccessful conservative treatment, we performed microsurgical decompression under local anesthesia. Of 19 patients who had undergone lumbar spinal surgery (LSS), 9 suffered residual symptoms attributable to PNEN. While complete symptom abatement was obtained in the other 10 they later developed PNEN-induced new symptoms. Motor weakness of the extensors of the toes and ankle [manual muscle testing (MMT) 4/5] was observed preoperatively in 8 patients; it was relieved by microsurgical decompression. Based on self-assessments, all 22 patients were satisfied with the results of surgery. PNEN should be considered as a possible differential diagnosis in patients with L5 neuropathy due to lumbar degenerative disease, and as a causative factor of residual symptoms after LSS. PNEN can be successfully addressed by less-invasive surgery performed under local anesthesia.
ISSN:0470-8105
1349-8029
DOI:10.2176/nmc.oa.2014-0454