Denervation and atrophy of paraspinal muscles after open lumbar interbody fusion is associated with clinical outcome—electromyographic and CT-volumetric investigation of 30 patients

Background Different studies have shown that atrophy of paraspinal muscles arises after open dorsal lumbar fusion, and the reasons for this atrophy are still not yet fully clarified. This prospective study investigates the extent of atrophy of the lumbar paraspinal muscles after open lumbar interbod...

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Veröffentlicht in:Acta neurochirurgica 2014-02, Vol.156 (2), p.235-244
Hauptverfasser: Waschke, Albrecht, Hartmann, Christin, Walter, Jan, Dünisch, Pedro, Wahnschaff, Falko, Kalff, Rolf, Ewald, Christian
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container_title Acta neurochirurgica
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creator Waschke, Albrecht
Hartmann, Christin
Walter, Jan
Dünisch, Pedro
Wahnschaff, Falko
Kalff, Rolf
Ewald, Christian
description Background Different studies have shown that atrophy of paraspinal muscles arises after open dorsal lumbar fusion, and the reasons for this atrophy are still not yet fully clarified. This prospective study investigates the extent of atrophy of the lumbar paraspinal muscles after open lumbar interbody fusion, its possible causes, and their association with clinical outcome measures. Methods Thirty consecutive patients were prospectively included (13 male, 17 female, median age 60.5 years, range 33–80 years). Mono or bisegmental, posterior lumbar interbody fusion and instrumentation was performed applying a conventional, open lumbar midline approach. Clinical outcome was assessed by the Short Form (36) Health Survey (SF-36) questionnaire and visual analogue scale. Needle electromyography of paraspinal muscles was performed preoperatively, at 6 and 12 months. Serum values of creatine kinase, lactate dehydrogenase and myoglobin were determined preoperatively, at day 2 after surgery and at discharge. Paraspinal muscle volume was determined by volumetric analysis of thin-slice computed tomography scans preoperatively and 1 year after surgery. Results There was a significant increase of electromyographic denervation activity ( p =0.024) and reduced recruitment of motor units ( p  = 0.001) after 1 year. Laboratory studies showed a significant increase of CK ( p  
doi_str_mv 10.1007/s00701-013-1981-9
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This prospective study investigates the extent of atrophy of the lumbar paraspinal muscles after open lumbar interbody fusion, its possible causes, and their association with clinical outcome measures. Methods Thirty consecutive patients were prospectively included (13 male, 17 female, median age 60.5 years, range 33–80 years). Mono or bisegmental, posterior lumbar interbody fusion and instrumentation was performed applying a conventional, open lumbar midline approach. Clinical outcome was assessed by the Short Form (36) Health Survey (SF-36) questionnaire and visual analogue scale. Needle electromyography of paraspinal muscles was performed preoperatively, at 6 and 12 months. Serum values of creatine kinase, lactate dehydrogenase and myoglobin were determined preoperatively, at day 2 after surgery and at discharge. Paraspinal muscle volume was determined by volumetric analysis of thin-slice computed tomography scans preoperatively and 1 year after surgery. Results There was a significant increase of electromyographic denervation activity ( p =0.024) and reduced recruitment of motor units ( p  = 0.001) after 1 year. Laboratory studies showed a significant increase of CK ( p  &lt; 0.001) and myoglobin ( p &lt; 0.001) serum levels at day 2 after surgery. The paraspinal muscle volume decreased from 67.8 to 60.4 % ( p &lt; 0.001) after 1 year. Correlation analyses revealed a significant negative correlation between denervation and muscle volume ( K = -0.219, p = 0.002). Paraspinal muscle volume is significantly correlated with physical outcome ( K = 0.169, p = 0.020), mental outcome ( K = 0.214, p = 0.003), and pain ( K = 0.382, p &lt; 0.001) after 1 year. Conclusions Atrophy of paraspinal muscles after open, posterior lumbar interbody fusion seems to be associated with denervation, as well as direct muscle trauma during surgery. While muscle atrophy is also correlated with a worse clinical outcome, it seems to be a determining factor for successful lumbar spine surgery.</description><identifier>ISSN: 0001-6268</identifier><identifier>EISSN: 0942-0940</identifier><identifier>DOI: 10.1007/s00701-013-1981-9</identifier><identifier>PMID: 24384989</identifier><language>eng</language><publisher>Vienna: Springer Vienna</publisher><subject>Adult ; Age ; Aged ; Aged, 80 and over ; Clinical Article - Spine ; Clinical outcomes ; Denervation - methods ; Electromyography ; Female ; Humans ; Interventional Radiology ; Lumbar Vertebrae - surgery ; Male ; Medicine ; Medicine &amp; Public Health ; Middle Aged ; Minimally Invasive Surgery ; Muscular Atrophy - etiology ; Muscular Atrophy - physiopathology ; Neurology ; Neuroradiology ; Neurosurgery ; Paraspinal Muscles - innervation ; Paraspinal Muscles - physiopathology ; Paraspinal Muscles - surgery ; Prospective Studies ; Spinal Fusion - adverse effects ; Spinal Fusion - methods ; Surgical Orthopedics ; Treatment Outcome</subject><ispartof>Acta neurochirurgica, 2014-02, Vol.156 (2), p.235-244</ispartof><rights>Springer-Verlag Wien 2014</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c405t-4ca0d8a34f16a22125602d593f57841ca5bf76891b6695f01c2b211f6e3040bd3</citedby><cites>FETCH-LOGICAL-c405t-4ca0d8a34f16a22125602d593f57841ca5bf76891b6695f01c2b211f6e3040bd3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00701-013-1981-9$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00701-013-1981-9$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24384989$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Waschke, Albrecht</creatorcontrib><creatorcontrib>Hartmann, Christin</creatorcontrib><creatorcontrib>Walter, Jan</creatorcontrib><creatorcontrib>Dünisch, Pedro</creatorcontrib><creatorcontrib>Wahnschaff, Falko</creatorcontrib><creatorcontrib>Kalff, Rolf</creatorcontrib><creatorcontrib>Ewald, Christian</creatorcontrib><title>Denervation and atrophy of paraspinal muscles after open lumbar interbody fusion is associated with clinical outcome—electromyographic and CT-volumetric investigation of 30 patients</title><title>Acta neurochirurgica</title><addtitle>Acta Neurochir</addtitle><addtitle>Acta Neurochir (Wien)</addtitle><description>Background Different studies have shown that atrophy of paraspinal muscles arises after open dorsal lumbar fusion, and the reasons for this atrophy are still not yet fully clarified. This prospective study investigates the extent of atrophy of the lumbar paraspinal muscles after open lumbar interbody fusion, its possible causes, and their association with clinical outcome measures. Methods Thirty consecutive patients were prospectively included (13 male, 17 female, median age 60.5 years, range 33–80 years). Mono or bisegmental, posterior lumbar interbody fusion and instrumentation was performed applying a conventional, open lumbar midline approach. Clinical outcome was assessed by the Short Form (36) Health Survey (SF-36) questionnaire and visual analogue scale. Needle electromyography of paraspinal muscles was performed preoperatively, at 6 and 12 months. Serum values of creatine kinase, lactate dehydrogenase and myoglobin were determined preoperatively, at day 2 after surgery and at discharge. Paraspinal muscle volume was determined by volumetric analysis of thin-slice computed tomography scans preoperatively and 1 year after surgery. Results There was a significant increase of electromyographic denervation activity ( p =0.024) and reduced recruitment of motor units ( p  = 0.001) after 1 year. Laboratory studies showed a significant increase of CK ( p  &lt; 0.001) and myoglobin ( p &lt; 0.001) serum levels at day 2 after surgery. The paraspinal muscle volume decreased from 67.8 to 60.4 % ( p &lt; 0.001) after 1 year. Correlation analyses revealed a significant negative correlation between denervation and muscle volume ( K = -0.219, p = 0.002). Paraspinal muscle volume is significantly correlated with physical outcome ( K = 0.169, p = 0.020), mental outcome ( K = 0.214, p = 0.003), and pain ( K = 0.382, p &lt; 0.001) after 1 year. Conclusions Atrophy of paraspinal muscles after open, posterior lumbar interbody fusion seems to be associated with denervation, as well as direct muscle trauma during surgery. 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Medical Research Collection</collection><collection>ProQuest One Academic Middle East (New)</collection><collection>ProQuest One Health &amp; Nursing</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>MEDLINE - Academic</collection><jtitle>Acta neurochirurgica</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Waschke, Albrecht</au><au>Hartmann, Christin</au><au>Walter, Jan</au><au>Dünisch, Pedro</au><au>Wahnschaff, Falko</au><au>Kalff, Rolf</au><au>Ewald, Christian</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Denervation and atrophy of paraspinal muscles after open lumbar interbody fusion is associated with clinical outcome—electromyographic and CT-volumetric investigation of 30 patients</atitle><jtitle>Acta neurochirurgica</jtitle><stitle>Acta Neurochir</stitle><addtitle>Acta Neurochir (Wien)</addtitle><date>2014-02-01</date><risdate>2014</risdate><volume>156</volume><issue>2</issue><spage>235</spage><epage>244</epage><pages>235-244</pages><issn>0001-6268</issn><eissn>0942-0940</eissn><abstract>Background Different studies have shown that atrophy of paraspinal muscles arises after open dorsal lumbar fusion, and the reasons for this atrophy are still not yet fully clarified. This prospective study investigates the extent of atrophy of the lumbar paraspinal muscles after open lumbar interbody fusion, its possible causes, and their association with clinical outcome measures. Methods Thirty consecutive patients were prospectively included (13 male, 17 female, median age 60.5 years, range 33–80 years). Mono or bisegmental, posterior lumbar interbody fusion and instrumentation was performed applying a conventional, open lumbar midline approach. Clinical outcome was assessed by the Short Form (36) Health Survey (SF-36) questionnaire and visual analogue scale. Needle electromyography of paraspinal muscles was performed preoperatively, at 6 and 12 months. Serum values of creatine kinase, lactate dehydrogenase and myoglobin were determined preoperatively, at day 2 after surgery and at discharge. Paraspinal muscle volume was determined by volumetric analysis of thin-slice computed tomography scans preoperatively and 1 year after surgery. Results There was a significant increase of electromyographic denervation activity ( p =0.024) and reduced recruitment of motor units ( p  = 0.001) after 1 year. Laboratory studies showed a significant increase of CK ( p  &lt; 0.001) and myoglobin ( p &lt; 0.001) serum levels at day 2 after surgery. The paraspinal muscle volume decreased from 67.8 to 60.4 % ( p &lt; 0.001) after 1 year. Correlation analyses revealed a significant negative correlation between denervation and muscle volume ( K = -0.219, p = 0.002). Paraspinal muscle volume is significantly correlated with physical outcome ( K = 0.169, p = 0.020), mental outcome ( K = 0.214, p = 0.003), and pain ( K = 0.382, p &lt; 0.001) after 1 year. Conclusions Atrophy of paraspinal muscles after open, posterior lumbar interbody fusion seems to be associated with denervation, as well as direct muscle trauma during surgery. While muscle atrophy is also correlated with a worse clinical outcome, it seems to be a determining factor for successful lumbar spine surgery.</abstract><cop>Vienna</cop><pub>Springer Vienna</pub><pmid>24384989</pmid><doi>10.1007/s00701-013-1981-9</doi><tpages>10</tpages></addata></record>
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subjects Adult
Age
Aged
Aged, 80 and over
Clinical Article - Spine
Clinical outcomes
Denervation - methods
Electromyography
Female
Humans
Interventional Radiology
Lumbar Vertebrae - surgery
Male
Medicine
Medicine & Public Health
Middle Aged
Minimally Invasive Surgery
Muscular Atrophy - etiology
Muscular Atrophy - physiopathology
Neurology
Neuroradiology
Neurosurgery
Paraspinal Muscles - innervation
Paraspinal Muscles - physiopathology
Paraspinal Muscles - surgery
Prospective Studies
Spinal Fusion - adverse effects
Spinal Fusion - methods
Surgical Orthopedics
Treatment Outcome
title Denervation and atrophy of paraspinal muscles after open lumbar interbody fusion is associated with clinical outcome—electromyographic and CT-volumetric investigation of 30 patients
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