Alignment of the medial tibial plateau affects the rate of joint space narrowing in the osteoarthritic knee
Identifieur interne : 001346 ( Pmc/Curation ); précédent : 001345; suivant : 001347Alignment of the medial tibial plateau affects the rate of joint space narrowing in the osteoarthritic knee
Auteurs : E. Vignon [France] ; K. D. Brandt [États-Unis] ; C. Mercier [France] ; M. Hochberg [États-Unis] ; D. Hunter [Australie] ; S. Mazzuca [États-Unis] ; K. Powell [États-Unis] ; B. Wyman [États-Unis] ; M.-P. Hellio Le Graverand [États-Unis]Source :
- Osteoarthritis and cartilage / OARS, Osteoarthritis Research Society [ 1063-4584 ] ; 2010.
Abstract
To determine, in serial fixed-flexion (FF) radiographs of subjects with knee osteoarthritis (KOA), the importance of, and basis for, the effect of alignment of the medial tibial plateau (MTP), as determined by the inter-margin distance (IMD), on joint space narrowing (JSN).
Baseline and 12-month X-rays of 590 knees with Kellgren and Lawrence grade (KLG) 2/3 OA from the public-release dataset of the Osteoarthritis Initiative (OAI) were assigned to subgroups based upon IMD at baseline (IMDBL) and the difference between IMDBL and IMD12mos. Relationships of JSN to IMDBL and to the difference between IMDBL and IMD12mos were evaluated.
In all 590 knees, mean JSN was 0.13 ± 0.51 mm (
Skewed MTP alignment in serial films and poor replication of IMDBL in the follow-up exam affect JSN measurement. The magnitude of change in joint space width (JSW) related to the poor quality of alignment that is common with the FF view jeopardizes accurate evaluation of JSN.
Url:
DOI: 10.1016/j.joca.2010.08.012
PubMed: 20813195
PubMed Central: 3049986
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Alignment of the medial tibial plateau affects the rate of joint space narrowing in the osteoarthritic knee</title>
<author><name sortKey="Vignon, E" sort="Vignon, E" uniqKey="Vignon E" first="E." last="Vignon">E. Vignon</name>
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<wicri:regionArea>Northern Clinical School, University of Sydney, Sydney</wicri:regionArea>
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<wicri:regionArea>Pfizer Global Research and Development, New London, CT</wicri:regionArea>
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<author><name sortKey="Hellio Le Graverand, M P" sort="Hellio Le Graverand, M P" uniqKey="Hellio Le Graverand M" first="M.-P." last="Hellio Le Graverand">M.-P. Hellio Le Graverand</name>
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<series><title level="j">Osteoarthritis and cartilage / OARS, Osteoarthritis Research Society</title>
<idno type="ISSN">1063-4584</idno>
<idno type="eISSN">1522-9653</idno>
<imprint><date when="2010">2010</date>
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<front><div type="abstract" xml:lang="en"><title>SUMMARY</title>
<sec id="S1"><title>Objective</title>
<p id="P1">To determine, in serial fixed-flexion (FF) radiographs of subjects with knee osteoarthritis (KOA), the importance of, and basis for, the effect of alignment of the medial tibial plateau (MTP), as determined by the inter-margin distance (IMD), on joint space narrowing (JSN).</p>
</sec>
<sec sec-type="methods" id="S2"><title>Methods</title>
<p id="P2">Baseline and 12-month X-rays of 590 knees with Kellgren and Lawrence grade (KLG) 2/3 OA from the public-release dataset of the Osteoarthritis Initiative (OAI) were assigned to subgroups based upon IMD at baseline (IMD<sub>BL</sub>
) and the difference between IMD<sub>BL</sub>
and IMD<sub>12mos</sub>
. Relationships of JSN to IMD<sub>BL</sub>
and to the difference between IMD<sub>BL and</sub>
IMD<sub>12mos</sub>
were evaluated.</p>
</sec>
<sec id="S3"><title>Results</title>
<p id="P3">In all 590 knees, mean JSN was 0.13 ± 0.51 mm (<italic>P</italic>
< 0.0001) and MTP alignment and replication of IMD<sub>BL</sub>
in the 12-month film were, in general, poor. JSN was significantly (<italic>P</italic>
= 0.012) more rapid in Subgroup A (IMD ≤ 1.70 mm at both time points) than in Subgroup B (both IMDs > 1.70 mm): 0.15 ± 0.43; 0.08 ± 0.47. Within Subgroup B we identified a subset, Subgroup B1, in which, although alignment was poor at both time points, the large IMD<sub>BL</sub>
was, by chance, highly reproduced by IMD<sub>12mos</sub>
(difference between the two IMDs = 0.01 ± 0.27 mm, NS). JSN in Subgroup B1 was 0.06 ± 0.41 mm and did not differ from that in other knees of Subgroup B (<italic>P</italic>
= 0.87). The standardized response mean (SRM) in all 590 knees and Subgroups A, B and B1 was 0.25, 0.34, 0.17 and 0.06, respectively. Independent of IMD<sub>BL</sub>
, JSN correlated significantly with the difference between the IMDs in the two radiographs (<italic>r</italic>
= 0.17, <italic>P</italic>
= 0.0001).</p>
</sec>
<sec id="S4"><title>Conclusion</title>
<p id="P4">Skewed MTP alignment in serial films and poor replication of IMD<sub>BL</sub>
in the follow-up exam affect JSN measurement. The magnitude of change in joint space width (JSW) related to the poor quality of alignment that is common with the FF view jeopardizes accurate evaluation of JSN.</p>
</sec>
</div>
</front>
</TEI>
<pmc article-type="research-article" xml:lang="EN"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<pmc-dir>properties manuscript</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-journal-id">9305697</journal-id>
<journal-id journal-id-type="pubmed-jr-id">8786</journal-id>
<journal-id journal-id-type="nlm-ta">Osteoarthritis Cartilage</journal-id>
<journal-title>Osteoarthritis and cartilage / OARS, Osteoarthritis Research Society</journal-title>
<issn pub-type="ppub">1063-4584</issn>
<issn pub-type="epub">1522-9653</issn>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">20813195</article-id>
<article-id pub-id-type="pmc">3049986</article-id>
<article-id pub-id-type="doi">10.1016/j.joca.2010.08.012</article-id>
<article-id pub-id-type="manuscript">NIHMS271676</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Article</subject>
</subj-group>
</article-categories>
<title-group><article-title>Alignment of the medial tibial plateau affects the rate of joint space narrowing in the osteoarthritic knee</article-title>
</title-group>
<contrib-group><contrib contrib-type="author"><name><surname>Vignon</surname>
<given-names>E.</given-names>
</name>
<xref ref-type="aff" rid="A1">†</xref>
<xref ref-type="corresp" rid="cor1">*</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Brandt</surname>
<given-names>K.D.</given-names>
</name>
<xref ref-type="aff" rid="A2">‡</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Mercier</surname>
<given-names>C.</given-names>
</name>
<xref ref-type="aff" rid="A1">†</xref>
<xref ref-type="aff" rid="A3">§</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Hochberg</surname>
<given-names>M.</given-names>
</name>
<xref ref-type="aff" rid="A4">‖</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Hunter</surname>
<given-names>D.</given-names>
</name>
<xref ref-type="aff" rid="A5">¶</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Mazzuca</surname>
<given-names>S.</given-names>
</name>
<xref ref-type="aff" rid="A6">#</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Powell</surname>
<given-names>K.</given-names>
</name>
<xref ref-type="aff" rid="A7">††</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Wyman</surname>
<given-names>B.</given-names>
</name>
<xref ref-type="aff" rid="A7">††</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Hellio Le Graverand</surname>
<given-names>M.-P.</given-names>
</name>
<xref ref-type="aff" rid="A7">††</xref>
</contrib>
</contrib-group>
<aff id="A1"><label>†</label>
Université Claude Bernard Lyon 1, Lyon, France</aff>
<aff id="A2"><label>‡</label>
University of Kansas Medical Center, Kansas City, KS, USA</aff>
<aff id="A3"><label>§</label>
Hospices Civils de Lyon, Service de Biostatistique, Lyon, F-69003, France</aff>
<aff id="A4"><label>‖</label>
University of Maryland School of Medicine, Baltimore, MD, USA</aff>
<aff id="A5"><label>¶</label>
Northern Clinical School, University of Sydney, Sydney, Australia</aff>
<aff id="A6"><label>#</label>
Indiana University School of Medicine, Indianapolis, IN, USA</aff>
<aff id="A7"><label>††</label>
Pfizer Global Research and Development, New London, CT, USA</aff>
<author-notes><corresp id="cor1"><label>*</label>
Address correspondence and reprint requests to: E Vignon, Universite Claude Bernard, 69495 Lyon, France. <email>eric.vignon@chu-lyon.fr</email>
(E. Vignon)</corresp>
</author-notes>
<pub-date pub-type="nihms-submitted"><day>17</day>
<month>2</month>
<year>2011</year>
</pub-date>
<pub-date pub-type="epub"><day>8</day>
<month>9</month>
<year>2010</year>
</pub-date>
<pub-date pub-type="ppub"><month>11</month>
<year>2010</year>
</pub-date>
<pub-date pub-type="pmc-release"><day>8</day>
<month>3</month>
<year>2011</year>
</pub-date>
<volume>18</volume>
<issue>11</issue>
<fpage>1436</fpage>
<lpage>1440</lpage>
<abstract><title>SUMMARY</title>
<sec id="S1"><title>Objective</title>
<p id="P1">To determine, in serial fixed-flexion (FF) radiographs of subjects with knee osteoarthritis (KOA), the importance of, and basis for, the effect of alignment of the medial tibial plateau (MTP), as determined by the inter-margin distance (IMD), on joint space narrowing (JSN).</p>
</sec>
<sec sec-type="methods" id="S2"><title>Methods</title>
<p id="P2">Baseline and 12-month X-rays of 590 knees with Kellgren and Lawrence grade (KLG) 2/3 OA from the public-release dataset of the Osteoarthritis Initiative (OAI) were assigned to subgroups based upon IMD at baseline (IMD<sub>BL</sub>
) and the difference between IMD<sub>BL</sub>
and IMD<sub>12mos</sub>
. Relationships of JSN to IMD<sub>BL</sub>
and to the difference between IMD<sub>BL and</sub>
IMD<sub>12mos</sub>
were evaluated.</p>
</sec>
<sec id="S3"><title>Results</title>
<p id="P3">In all 590 knees, mean JSN was 0.13 ± 0.51 mm (<italic>P</italic>
< 0.0001) and MTP alignment and replication of IMD<sub>BL</sub>
in the 12-month film were, in general, poor. JSN was significantly (<italic>P</italic>
= 0.012) more rapid in Subgroup A (IMD ≤ 1.70 mm at both time points) than in Subgroup B (both IMDs > 1.70 mm): 0.15 ± 0.43; 0.08 ± 0.47. Within Subgroup B we identified a subset, Subgroup B1, in which, although alignment was poor at both time points, the large IMD<sub>BL</sub>
was, by chance, highly reproduced by IMD<sub>12mos</sub>
(difference between the two IMDs = 0.01 ± 0.27 mm, NS). JSN in Subgroup B1 was 0.06 ± 0.41 mm and did not differ from that in other knees of Subgroup B (<italic>P</italic>
= 0.87). The standardized response mean (SRM) in all 590 knees and Subgroups A, B and B1 was 0.25, 0.34, 0.17 and 0.06, respectively. Independent of IMD<sub>BL</sub>
, JSN correlated significantly with the difference between the IMDs in the two radiographs (<italic>r</italic>
= 0.17, <italic>P</italic>
= 0.0001).</p>
</sec>
<sec id="S4"><title>Conclusion</title>
<p id="P4">Skewed MTP alignment in serial films and poor replication of IMD<sub>BL</sub>
in the follow-up exam affect JSN measurement. The magnitude of change in joint space width (JSW) related to the poor quality of alignment that is common with the FF view jeopardizes accurate evaluation of JSN.</p>
</sec>
</abstract>
<kwd-group><kwd>Knee osteoarthritis</kwd>
<kwd>Joint space narrowing</kwd>
<kwd>Tibial plateau alignment</kwd>
<kwd>Standardized radiography</kwd>
</kwd-group>
<contract-num rid="AR1">N01 AR022258
||AR</contract-num>
<contract-sponsor id="AR1">National Institute of Arthritis and Musculoskeletal and Skin Diseases : NIAMS</contract-sponsor>
</article-meta>
</front>
</pmc>
</record>
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