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Microsurgical Decompression for Peroneal Nerve Entrapment Neuropathy.
Neurol Med Chir (Tokyo) 2015; 55(8):669-73NM

Abstract

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.

Authors+Show Affiliations

Department of Neurosurgery, Nippon Medical School.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

26227056

Citation

Morimoto, Daijiro, et al. "Microsurgical Decompression for Peroneal Nerve Entrapment Neuropathy." Neurologia Medico-chirurgica, vol. 55, no. 8, 2015, pp. 669-73.
Morimoto D, Isu T, Kim K, et al. Microsurgical Decompression for Peroneal Nerve Entrapment Neuropathy. Neurol Med Chir (Tokyo). 2015;55(8):669-73.
Morimoto, D., Isu, T., Kim, K., Sugawara, A., Yamazaki, K., Chiba, Y., ... Morita, A. (2015). Microsurgical Decompression for Peroneal Nerve Entrapment Neuropathy. Neurologia Medico-chirurgica, 55(8), pp. 669-73. doi:10.2176/nmc.oa.2014-0454.
Morimoto D, et al. Microsurgical Decompression for Peroneal Nerve Entrapment Neuropathy. Neurol Med Chir (Tokyo). 2015;55(8):669-73. PubMed PMID: 26227056.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Microsurgical Decompression for Peroneal Nerve Entrapment Neuropathy. AU - Morimoto,Daijiro, AU - Isu,Toyohiko, AU - Kim,Kyongsong, AU - Sugawara,Atsushi, AU - Yamazaki,Kazuyoshi, AU - Chiba,Yasuhiro, AU - Iwamoto,Naotaka, AU - Isobe,Masanori, AU - Morita,Akio, Y1 - 2015/07/31/ PY - 2015/8/1/entrez PY - 2015/8/1/pubmed PY - 2017/4/25/medline SP - 669 EP - 73 JF - Neurologia medico-chirurgica JO - Neurol. Med. Chir. (Tokyo) VL - 55 IS - 8 N2 - 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. SN - 1349-8029 UR - https://www.unboundmedicine.com/medline/citation/26227056/Microsurgical_Decompression_for_Peroneal_Nerve_Entrapment_Neuropathy_ L2 - https://dx.doi.org/10.2176/nmc.oa.2014-0454 DB - PRIME DP - Unbound Medicine ER -