• Ups. J. Med. Sci. · Nov 2012

    Improvement of hip abductor muscle weakness after lumbar decompressive surgery.

    • Tatsuro Sasaji, Kiyoshi Horaguchi, Noboru Yamada, and Kazuo Iwai.
    • Department of Orthopedic Surgery, Fukushima Rosai Hospital, 3-Numajiri, Tsuzura-machi, Uchigo, Iwaki 973-8403, Japan. taturosasaji@hotmail.com
    • Ups. J. Med. Sci. 2012 Nov 1;117(4):426-9.

    IntroductionDegenerative lumbar spinal disorder is common in Japan, and the L5 nerve root is commonly involved in this disorder. The symptoms of L5 radiculopathy are irradiating lateral leg pain, and numbness and weakness of tibialis anterior and the hip abductor muscle. There has been only one report on the results of surgery for hip abductor muscle weakness caused by degenerative lumbar spinal disorder.Patients And MethodsIn this study, we analyzed the strength of the hip abductor muscle before and after decompressive surgery in 26 cases and the relationship between the lumbar disc herniation (LDH) and lumbar spinal canal stenosis (LSCS) groups.ResultsOf the total 26 cases, muscle strength improved in 23 cases (88%), with complete recovery in 17 cases (65%). In the LDH group, the improvement rate was 92%. In the LSCS group, the improvement rate was 68%. Although the improvement rate for the LDH group was higher than that for the LSCS group, the difference was not significant (P = 0.054).DiscussionDecompressive surgery may be an effective method to improve hip abductor muscle weakness in degenerative lumbar spinal disorder.

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