Surgical increase in thoracic kyphosis predicts increase of cervical lordosis after thoracic fusion for adolescent idiopathic scoliosis
Purpose The modification of cervical lordosis (CL) after adolescent idiopathic scoliosis (AIS) surgery is influenced by the correction of thoracic hypokyphosis. The quantification of the increase of CL as a function of the increase of thoracic kyphosis (TK) has never been calculated. Methods A total...
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| Veröffentlicht in: | European spine journal 2021-12, Vol.30 (12), p.3550-3556 |
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| creator | Clement, Jean-Luc Le Goff, Ludovic Oborocianu, Ioana Rosello, Olivier Bertoncelli, Carlo Solla, Federico Rampal, Virginie |
| description | Purpose
The modification of cervical lordosis (CL) after adolescent idiopathic scoliosis (AIS) surgery is influenced by the correction of thoracic hypokyphosis. The quantification of the increase of CL as a function of the increase of thoracic kyphosis (TK) has never been calculated.
Methods
A total of 92 consecutive AIS patients who underwent a posterior thoracic selective fusion, corrected by simultaneous translation on 2 rods technique, with minimum 24-month follow-up, were analyzed from a prospective database. We evaluated global sagittal kyphosis and lordosis. CL was divided by the horizontal line in proximal (PCL) and distal cervical lordosis (DCL), likewise TK in proximal (PTK) and distal TK (DTK), and lumbar lordosis (LL) in proximal (PLL) and distal LL (DLL).
Results
The mean TK gain was 16°, 14° and 28° in the whole cohort, normokyphosis group and hypokyphosis group, respectively. The mean DCL gain was, respectively, 9°, 7° and 20° and the mean CL gain 8°, 5° and 21°. There was a strong correlation between TK gain and CL gain (coefficient = 0.86) and between TK gain and DCL gain (coefficient = 0.74). The regression equation was defined as DCLgain = − 3 + 0.75 × TKgain (
p
|
| doi_str_mv | 10.1007/s00586-021-06904-2 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_2545988439</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2604982469</sourcerecordid><originalsourceid>FETCH-LOGICAL-c375t-f88d61dff2440b3222fb18c180ed4de0571733e321572553fa3005dbb97a5e0e3</originalsourceid><addsrcrecordid>eNp9kctq3DAUhkVpaKZpXyCLYuimGydHN9tahtAbBLposhaydJRR6rEcyS7kCfLa0cwkGeiiKwn0_b8O5yPklMIZBWjPM4DsmhoYraFRIGr2hqyo4KwGxdlbsgIloG5aqo7J-5zvAKhU0Lwjx1zQtgHKVuTx95JugzVDFUab0GQsl2pex2RssNWfh2kdc8jVlNAFO-cDFn1lMf3dZYeY3A4zfsZ0iPslhzhWPqbKuDhgtjjOVXAhTmZeFyDbOIRt8gM58mbI-PH5PCE3375eX_6or359_3l5cVVb3sq59l3nGuq8Z0JAzxljvqedpR2gEw5BtrTlHDmjsmVScm94WZLre9UaiYD8hHzZ904p3i-YZ70JZaphMCPGJWsmhVRdJ7gq6Od_0Lu4pLFMp1kDQnVMNFuK7SmbYs4JvZ5S2Jj0oCnorSa916SLJr3TpFkJfXquXvoNutfIi5cC8D2Qy9N4i-nw939qnwBUbZ-Z</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2604982469</pqid></control><display><type>article</type><title>Surgical increase in thoracic kyphosis predicts increase of cervical lordosis after thoracic fusion for adolescent idiopathic scoliosis</title><source>MEDLINE</source><source>SpringerLink Journals</source><creator>Clement, Jean-Luc ; Le Goff, Ludovic ; Oborocianu, Ioana ; Rosello, Olivier ; Bertoncelli, Carlo ; Solla, Federico ; Rampal, Virginie</creator><creatorcontrib>Clement, Jean-Luc ; Le Goff, Ludovic ; Oborocianu, Ioana ; Rosello, Olivier ; Bertoncelli, Carlo ; Solla, Federico ; Rampal, Virginie</creatorcontrib><description>Purpose
The modification of cervical lordosis (CL) after adolescent idiopathic scoliosis (AIS) surgery is influenced by the correction of thoracic hypokyphosis. The quantification of the increase of CL as a function of the increase of thoracic kyphosis (TK) has never been calculated.
Methods
A total of 92 consecutive AIS patients who underwent a posterior thoracic selective fusion, corrected by simultaneous translation on 2 rods technique, with minimum 24-month follow-up, were analyzed from a prospective database. We evaluated global sagittal kyphosis and lordosis. CL was divided by the horizontal line in proximal (PCL) and distal cervical lordosis (DCL), likewise TK in proximal (PTK) and distal TK (DTK), and lumbar lordosis (LL) in proximal (PLL) and distal LL (DLL).
Results
The mean TK gain was 16°, 14° and 28° in the whole cohort, normokyphosis group and hypokyphosis group, respectively. The mean DCL gain was, respectively, 9°, 7° and 20° and the mean CL gain 8°, 5° and 21°. There was a strong correlation between TK gain and CL gain (coefficient = 0.86) and between TK gain and DCL gain (coefficient = 0.74). The regression equation was defined as DCLgain = − 3 + 0.75 × TKgain (
p
< 0.0001) corresponding on average to 60% of the TK gain.
Conclusion
60% of the TK gain was transferred to DCL gain. Correlations reflect the geometrical equivalence between PTK and DCL. The use of sagittal global measurements shows that DCL is equivalent to PTK and can be expressed as a function of pelvic parameters (DCL = PT + LL-PI). DCL must be considered to optimize the postoperative sagittal alignment of the spine.</description><identifier>ISSN: 0940-6719</identifier><identifier>EISSN: 1432-0932</identifier><identifier>DOI: 10.1007/s00586-021-06904-2</identifier><identifier>PMID: 34176012</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Adolescent ; Humans ; Kyphosis ; Kyphosis - diagnostic imaging ; Kyphosis - surgery ; Lordosis - diagnostic imaging ; Lordosis - surgery ; Medicine ; Medicine & Public Health ; Neurosurgery ; Original Article ; Protein-tyrosine kinase ; Retrospective Studies ; Scoliosis ; Scoliosis - diagnostic imaging ; Scoliosis - surgery ; Spinal Fusion - adverse effects ; Spine (lumbar) ; Surgical Orthopedics ; Thoracic Vertebrae - diagnostic imaging ; Thoracic Vertebrae - surgery ; Thorax</subject><ispartof>European spine journal, 2021-12, Vol.30 (12), p.3550-3556</ispartof><rights>The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2021</rights><rights>2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.</rights><rights>The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2021.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c375t-f88d61dff2440b3222fb18c180ed4de0571733e321572553fa3005dbb97a5e0e3</citedby><cites>FETCH-LOGICAL-c375t-f88d61dff2440b3222fb18c180ed4de0571733e321572553fa3005dbb97a5e0e3</cites><orcidid>0000-0003-4192-0543</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00586-021-06904-2$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00586-021-06904-2$$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/34176012$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Clement, Jean-Luc</creatorcontrib><creatorcontrib>Le Goff, Ludovic</creatorcontrib><creatorcontrib>Oborocianu, Ioana</creatorcontrib><creatorcontrib>Rosello, Olivier</creatorcontrib><creatorcontrib>Bertoncelli, Carlo</creatorcontrib><creatorcontrib>Solla, Federico</creatorcontrib><creatorcontrib>Rampal, Virginie</creatorcontrib><title>Surgical increase in thoracic kyphosis predicts increase of cervical lordosis after thoracic fusion for adolescent idiopathic scoliosis</title><title>European spine journal</title><addtitle>Eur Spine J</addtitle><addtitle>Eur Spine J</addtitle><description>Purpose
The modification of cervical lordosis (CL) after adolescent idiopathic scoliosis (AIS) surgery is influenced by the correction of thoracic hypokyphosis. The quantification of the increase of CL as a function of the increase of thoracic kyphosis (TK) has never been calculated.
Methods
A total of 92 consecutive AIS patients who underwent a posterior thoracic selective fusion, corrected by simultaneous translation on 2 rods technique, with minimum 24-month follow-up, were analyzed from a prospective database. We evaluated global sagittal kyphosis and lordosis. CL was divided by the horizontal line in proximal (PCL) and distal cervical lordosis (DCL), likewise TK in proximal (PTK) and distal TK (DTK), and lumbar lordosis (LL) in proximal (PLL) and distal LL (DLL).
Results
The mean TK gain was 16°, 14° and 28° in the whole cohort, normokyphosis group and hypokyphosis group, respectively. The mean DCL gain was, respectively, 9°, 7° and 20° and the mean CL gain 8°, 5° and 21°. There was a strong correlation between TK gain and CL gain (coefficient = 0.86) and between TK gain and DCL gain (coefficient = 0.74). The regression equation was defined as DCLgain = − 3 + 0.75 × TKgain (
p
< 0.0001) corresponding on average to 60% of the TK gain.
Conclusion
60% of the TK gain was transferred to DCL gain. Correlations reflect the geometrical equivalence between PTK and DCL. The use of sagittal global measurements shows that DCL is equivalent to PTK and can be expressed as a function of pelvic parameters (DCL = PT + LL-PI). DCL must be considered to optimize the postoperative sagittal alignment of the spine.</description><subject>Adolescent</subject><subject>Humans</subject><subject>Kyphosis</subject><subject>Kyphosis - diagnostic imaging</subject><subject>Kyphosis - surgery</subject><subject>Lordosis - diagnostic imaging</subject><subject>Lordosis - surgery</subject><subject>Medicine</subject><subject>Medicine & Public Health</subject><subject>Neurosurgery</subject><subject>Original Article</subject><subject>Protein-tyrosine kinase</subject><subject>Retrospective Studies</subject><subject>Scoliosis</subject><subject>Scoliosis - diagnostic imaging</subject><subject>Scoliosis - surgery</subject><subject>Spinal Fusion - adverse effects</subject><subject>Spine (lumbar)</subject><subject>Surgical Orthopedics</subject><subject>Thoracic Vertebrae - diagnostic imaging</subject><subject>Thoracic Vertebrae - surgery</subject><subject>Thorax</subject><issn>0940-6719</issn><issn>1432-0932</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><recordid>eNp9kctq3DAUhkVpaKZpXyCLYuimGydHN9tahtAbBLposhaydJRR6rEcyS7kCfLa0cwkGeiiKwn0_b8O5yPklMIZBWjPM4DsmhoYraFRIGr2hqyo4KwGxdlbsgIloG5aqo7J-5zvAKhU0Lwjx1zQtgHKVuTx95JugzVDFUab0GQsl2pex2RssNWfh2kdc8jVlNAFO-cDFn1lMf3dZYeY3A4zfsZ0iPslhzhWPqbKuDhgtjjOVXAhTmZeFyDbOIRt8gM58mbI-PH5PCE3375eX_6or359_3l5cVVb3sq59l3nGuq8Z0JAzxljvqedpR2gEw5BtrTlHDmjsmVScm94WZLre9UaiYD8hHzZ904p3i-YZ70JZaphMCPGJWsmhVRdJ7gq6Od_0Lu4pLFMp1kDQnVMNFuK7SmbYs4JvZ5S2Jj0oCnorSa916SLJr3TpFkJfXquXvoNutfIi5cC8D2Qy9N4i-nw939qnwBUbZ-Z</recordid><startdate>20211201</startdate><enddate>20211201</enddate><creator>Clement, Jean-Luc</creator><creator>Le Goff, Ludovic</creator><creator>Oborocianu, Ioana</creator><creator>Rosello, Olivier</creator><creator>Bertoncelli, Carlo</creator><creator>Solla, Federico</creator><creator>Rampal, Virginie</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QP</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>K9.</scope><scope>M0S</scope><scope>M1P</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0003-4192-0543</orcidid></search><sort><creationdate>20211201</creationdate><title>Surgical increase in thoracic kyphosis predicts increase of cervical lordosis after thoracic fusion for adolescent idiopathic scoliosis</title><author>Clement, Jean-Luc ; Le Goff, Ludovic ; Oborocianu, Ioana ; Rosello, Olivier ; Bertoncelli, Carlo ; Solla, Federico ; Rampal, Virginie</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c375t-f88d61dff2440b3222fb18c180ed4de0571733e321572553fa3005dbb97a5e0e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Adolescent</topic><topic>Humans</topic><topic>Kyphosis</topic><topic>Kyphosis - diagnostic imaging</topic><topic>Kyphosis - surgery</topic><topic>Lordosis - diagnostic imaging</topic><topic>Lordosis - surgery</topic><topic>Medicine</topic><topic>Medicine & Public Health</topic><topic>Neurosurgery</topic><topic>Original Article</topic><topic>Protein-tyrosine kinase</topic><topic>Retrospective Studies</topic><topic>Scoliosis</topic><topic>Scoliosis - diagnostic imaging</topic><topic>Scoliosis - surgery</topic><topic>Spinal Fusion - adverse effects</topic><topic>Spine (lumbar)</topic><topic>Surgical Orthopedics</topic><topic>Thoracic Vertebrae - diagnostic imaging</topic><topic>Thoracic Vertebrae - surgery</topic><topic>Thorax</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Clement, Jean-Luc</creatorcontrib><creatorcontrib>Le Goff, Ludovic</creatorcontrib><creatorcontrib>Oborocianu, Ioana</creatorcontrib><creatorcontrib>Rosello, Olivier</creatorcontrib><creatorcontrib>Bertoncelli, Carlo</creatorcontrib><creatorcontrib>Solla, Federico</creatorcontrib><creatorcontrib>Rampal, Virginie</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Calcium & Calcified Tissue Abstracts</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</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>European spine journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Clement, Jean-Luc</au><au>Le Goff, Ludovic</au><au>Oborocianu, Ioana</au><au>Rosello, Olivier</au><au>Bertoncelli, Carlo</au><au>Solla, Federico</au><au>Rampal, Virginie</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Surgical increase in thoracic kyphosis predicts increase of cervical lordosis after thoracic fusion for adolescent idiopathic scoliosis</atitle><jtitle>European spine journal</jtitle><stitle>Eur Spine J</stitle><addtitle>Eur Spine J</addtitle><date>2021-12-01</date><risdate>2021</risdate><volume>30</volume><issue>12</issue><spage>3550</spage><epage>3556</epage><pages>3550-3556</pages><issn>0940-6719</issn><eissn>1432-0932</eissn><abstract>Purpose
The modification of cervical lordosis (CL) after adolescent idiopathic scoliosis (AIS) surgery is influenced by the correction of thoracic hypokyphosis. The quantification of the increase of CL as a function of the increase of thoracic kyphosis (TK) has never been calculated.
Methods
A total of 92 consecutive AIS patients who underwent a posterior thoracic selective fusion, corrected by simultaneous translation on 2 rods technique, with minimum 24-month follow-up, were analyzed from a prospective database. We evaluated global sagittal kyphosis and lordosis. CL was divided by the horizontal line in proximal (PCL) and distal cervical lordosis (DCL), likewise TK in proximal (PTK) and distal TK (DTK), and lumbar lordosis (LL) in proximal (PLL) and distal LL (DLL).
Results
The mean TK gain was 16°, 14° and 28° in the whole cohort, normokyphosis group and hypokyphosis group, respectively. The mean DCL gain was, respectively, 9°, 7° and 20° and the mean CL gain 8°, 5° and 21°. There was a strong correlation between TK gain and CL gain (coefficient = 0.86) and between TK gain and DCL gain (coefficient = 0.74). The regression equation was defined as DCLgain = − 3 + 0.75 × TKgain (
p
< 0.0001) corresponding on average to 60% of the TK gain.
Conclusion
60% of the TK gain was transferred to DCL gain. Correlations reflect the geometrical equivalence between PTK and DCL. The use of sagittal global measurements shows that DCL is equivalent to PTK and can be expressed as a function of pelvic parameters (DCL = PT + LL-PI). DCL must be considered to optimize the postoperative sagittal alignment of the spine.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><pmid>34176012</pmid><doi>10.1007/s00586-021-06904-2</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0003-4192-0543</orcidid></addata></record> |
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| subjects | Adolescent Humans Kyphosis Kyphosis - diagnostic imaging Kyphosis - surgery Lordosis - diagnostic imaging Lordosis - surgery Medicine Medicine & Public Health Neurosurgery Original Article Protein-tyrosine kinase Retrospective Studies Scoliosis Scoliosis - diagnostic imaging Scoliosis - surgery Spinal Fusion - adverse effects Spine (lumbar) Surgical Orthopedics Thoracic Vertebrae - diagnostic imaging Thoracic Vertebrae - surgery Thorax |
| title | Surgical increase in thoracic kyphosis predicts increase of cervical lordosis after thoracic fusion for adolescent idiopathic scoliosis |
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