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Article: Consequence of paraspinal muscle after spinal fusion: an experimental study.

TitleConsequence of paraspinal muscle after spinal fusion: an experimental study.
Authors
Issue Date2006
PublisherI O S Press. The Journal's web site is located at http://www.iospress.nl
Citation
Studies In Health Technology And Informatics, 2006, v. 123, p. 461-466 How to Cite?
AbstractPosterior lumbar spinal fusion is a common surgery of spine. The parapsinal muscular dysfunction was postulated to be due to injured paraspinal muscle inflicted by the surgery. To better understand the muscle dysfunction after spinal fusion, this descriptive study evaluated electrophysiology and histology changes in paraspinal muscle of rabbits with and without fusion. Three New Zealand white rabbits underwent 2-level posterior spinal fusion with instrumentation. Anothor 3 rabbits underwent surgical exposure alone and served as sham control. Pre-operative and follow-up electromyography (EMG) and histological assessment were performed in a 6-month interval. All fusion achieved solid union judged by post-mortem examination. Root mean square (RMS) of EMG showed decrease in both fusion and control group immediately after surgery, but the control group recovered to pre-operative value at 6 months follow-up. At 6 months after operation, the fusion group showed lower RMS in fused region than adjacent region. In term of median frequency (MF) changes, the control group did not show obvious difference between pre- and post-operative period. However, fusion group showed obvious decrease of MF in fusion region, but increase in lower adjacent region. Histology reviewed fatty infiltration in fusion region at 6 months after spinal fusion. In addition, the muscle fiber size presented smaller in fusion region than that of pre-operative status. These results would demonstrate the lower activities and muscle disuse atrophy of paraspinal muscles in the fusion region. While, higher muscular activities were found in the lower adjacent region, which may indicate muscle hypertrophy.
Persistent Identifierhttp://hdl.handle.net/10722/79707
ISSN
2015 SCImago Journal Rankings: 0.243

 

DC FieldValueLanguage
dc.contributor.authorHu, Yen_HK
dc.contributor.authorLeung, HBen_HK
dc.contributor.authorLu, WWen_HK
dc.contributor.authorLuk, KDen_HK
dc.date.accessioned2010-09-06T07:57:41Z-
dc.date.available2010-09-06T07:57:41Z-
dc.date.issued2006en_HK
dc.identifier.citationStudies In Health Technology And Informatics, 2006, v. 123, p. 461-466en_HK
dc.identifier.issn0926-9630en_HK
dc.identifier.urihttp://hdl.handle.net/10722/79707-
dc.description.abstractPosterior lumbar spinal fusion is a common surgery of spine. The parapsinal muscular dysfunction was postulated to be due to injured paraspinal muscle inflicted by the surgery. To better understand the muscle dysfunction after spinal fusion, this descriptive study evaluated electrophysiology and histology changes in paraspinal muscle of rabbits with and without fusion. Three New Zealand white rabbits underwent 2-level posterior spinal fusion with instrumentation. Anothor 3 rabbits underwent surgical exposure alone and served as sham control. Pre-operative and follow-up electromyography (EMG) and histological assessment were performed in a 6-month interval. All fusion achieved solid union judged by post-mortem examination. Root mean square (RMS) of EMG showed decrease in both fusion and control group immediately after surgery, but the control group recovered to pre-operative value at 6 months follow-up. At 6 months after operation, the fusion group showed lower RMS in fused region than adjacent region. In term of median frequency (MF) changes, the control group did not show obvious difference between pre- and post-operative period. However, fusion group showed obvious decrease of MF in fusion region, but increase in lower adjacent region. Histology reviewed fatty infiltration in fusion region at 6 months after spinal fusion. In addition, the muscle fiber size presented smaller in fusion region than that of pre-operative status. These results would demonstrate the lower activities and muscle disuse atrophy of paraspinal muscles in the fusion region. While, higher muscular activities were found in the lower adjacent region, which may indicate muscle hypertrophy.en_HK
dc.languageengen_HK
dc.publisherI O S Press. The Journal's web site is located at http://www.iospress.nlen_HK
dc.relation.ispartofStudies in health technology and informaticsen_HK
dc.rightsStudies in Health Technology and Informatics. Copyright © I O S Press.en_HK
dc.titleConsequence of paraspinal muscle after spinal fusion: an experimental study.en_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0926-9630&volume=123&spage=461&epage=466&date=2006&atitle=Consequence+of+Paraspinal+Muscle+after+Spinal+Fusion:+An+experimental+Studyen_HK
dc.identifier.emailHu, Y:yhud@hku.hken_HK
dc.identifier.emailLu, WW:wwlu@hku.hken_HK
dc.identifier.emailLuk, KD:hcm21000@hku.hken_HK
dc.identifier.authorityHu, Y=rp00432en_HK
dc.identifier.authorityLu, WW=rp00411en_HK
dc.identifier.authorityLuk, KD=rp00333en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.pmid17108469-
dc.identifier.scopuseid_2-s2.0-39049185436en_HK
dc.identifier.hkuros136983en_HK
dc.identifier.volume123en_HK
dc.identifier.spage461en_HK
dc.identifier.epage466en_HK
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridHu, Y=7407116091en_HK
dc.identifier.scopusauthoridLeung, HB=30967606800en_HK
dc.identifier.scopusauthoridLu, WW=7404215221en_HK
dc.identifier.scopusauthoridLuk, KD=7201921573en_HK

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