Discoid lateral meniscus can be overlooked by magnetic resonance imaging in patients with meniscal tears
Purpose MRI evaluation of torn lateral meniscus was compared with arthroscopy. This study calculates the sensitivity, specificity, and accuracy of MRI in determining the presence or absence of discoid lateral meniscus (DLM) for different tear types. Methods MR imaging of 156 knees with arthroscopica...
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| Veröffentlicht in: | Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA sports traumatology, arthroscopy : official journal of the ESSKA, 2018-08, Vol.26 (8), p.2317-2323 |
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| creator | Sohn, Dong-Wook Bin, Seong-Il Kim, Jong-Min Lee, Bum-Sik Kim, Seon-Jeong |
| description | Purpose
MRI evaluation of torn lateral meniscus was compared with arthroscopy. This study calculates the sensitivity, specificity, and accuracy of MRI in determining the presence or absence of discoid lateral meniscus (DLM) for different tear types.
Methods
MR imaging of 156 knees with arthroscopically confirmed lateral meniscus tears was analysed. There were 78 knees (70 patients) in non-DLM group and 78 knees (74 patients) in DLM group on arthroscopy as the reference standard. The presence of DLM on MRI was determined by an orthopaedic surgeon and a radiologist, who were blinded to the arthroscopic findings. The presence of discoid meniscus on MRI was determined by coronal and sagittal measurements, considering the tear pattern of lateral meniscus. The tear pattern was categorized into six types based on arthroscopic findings: horizontal, longitudinal, radial, combined radial, degenerative, and complex tear. The sensitivity, specificity, and accuracy of MRI were calculated for each type of lateral meniscus tear. In addition, we analysed the reason for non-detection of discoid meniscus on preoperative MRI.
Result
The sensitivity for determining the presence of discoid meniscus was 58% for radial tear, 57% for combined radial tear, and 65% for longitudinal tear, whereas the specificity was 100% for all tear groups. In the presence of radial or longitudinal tear, the accuracy of MRI was significantly lower than having no radial and longitudinal tear (
p
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| doi_str_mv | 10.1007/s00167-017-4704-6 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1938198320</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1938198320</sourcerecordid><originalsourceid>FETCH-LOGICAL-c372t-c88ab09761f482ff00c4ffef1083db08aaf9fe47150b15e03c895f039fffe81e3</originalsourceid><addsrcrecordid>eNp1kc9PHCEUx0lTU9e1f0AvhqSXXkYfP2aAo9G2NjHxomfCsI917CxsYabG_17Mbm1i4gny-LwPD76EfGFwygDUWQFgnWqAqUYqkE33gSyYFKJRQqqPZAFG8oZD2x2So1IeAOpWmk_kkGttpAG9IPeXQ_FpWNHRTZjdSDcYa2Uu1LtIe6TpL-Yxpd-4ov0T3bh1xGnwNGNJ0UWPdKi1Ia7pEOnWTQPGqdDHYbrfm6pyQpfLMTkIbiz4eb8uyd2P77cXV831zc9fF-fXjReKT43X2vVgVMeC1DwEAC9DwMBAi1UP2rlgAkrFWuhZiyC8Nm0AYUKlNEOxJN923m1Of2Ysk93UKXAcXcQ0F8uM0MxowaGiX9-gD2nOsU5nOSgO3LQVXBK2o3xOpWQMdpvrm_OTZWBfYrC7GGyNwb7EYLvac7I3z_0GV68d__69AnwHlHoU15j_X_2-9RmI1JOO</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2072029598</pqid></control><display><type>article</type><title>Discoid lateral meniscus can be overlooked by magnetic resonance imaging in patients with meniscal tears</title><source>Wiley Online Library Journals Frontfile Complete</source><source>SpringerLink Journals - AutoHoldings</source><creator>Sohn, Dong-Wook ; Bin, Seong-Il ; Kim, Jong-Min ; Lee, Bum-Sik ; Kim, Seon-Jeong</creator><creatorcontrib>Sohn, Dong-Wook ; Bin, Seong-Il ; Kim, Jong-Min ; Lee, Bum-Sik ; Kim, Seon-Jeong</creatorcontrib><description>Purpose
MRI evaluation of torn lateral meniscus was compared with arthroscopy. This study calculates the sensitivity, specificity, and accuracy of MRI in determining the presence or absence of discoid lateral meniscus (DLM) for different tear types.
Methods
MR imaging of 156 knees with arthroscopically confirmed lateral meniscus tears was analysed. There were 78 knees (70 patients) in non-DLM group and 78 knees (74 patients) in DLM group on arthroscopy as the reference standard. The presence of DLM on MRI was determined by an orthopaedic surgeon and a radiologist, who were blinded to the arthroscopic findings. The presence of discoid meniscus on MRI was determined by coronal and sagittal measurements, considering the tear pattern of lateral meniscus. The tear pattern was categorized into six types based on arthroscopic findings: horizontal, longitudinal, radial, combined radial, degenerative, and complex tear. The sensitivity, specificity, and accuracy of MRI were calculated for each type of lateral meniscus tear. In addition, we analysed the reason for non-detection of discoid meniscus on preoperative MRI.
Result
The sensitivity for determining the presence of discoid meniscus was 58% for radial tear, 57% for combined radial tear, and 65% for longitudinal tear, whereas the specificity was 100% for all tear groups. In the presence of radial or longitudinal tear, the accuracy of MRI was significantly lower than having no radial and longitudinal tear (
p
< 0.001). The presence of discoid meniscus was not recognized on MRI because of large radial tear (12 knees), deformed bucket-handle tear (6 knees), and inverted flap tear (3 knees).
Conclusions
MRI was not successful in determining the presence or absence of DLM in radial tear, combined radial tear, and longitudinal tear. When there are large radial tear, deformed bucket-handle tear, and inverted flap tear in lateral meniscus, it is recommended to consider the possibility of DLM. This information can help to make accurate diagnosis of DLM, which allows appropriate surgical planning and facilitates patient’s information on poor prognosis of DLM.
Level of evidence
Level I.</description><identifier>ISSN: 0942-2056</identifier><identifier>EISSN: 1433-7347</identifier><identifier>DOI: 10.1007/s00167-017-4704-6</identifier><identifier>PMID: 28894908</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Accuracy ; Arthroscopy ; Deformation ; Injuries ; Knee ; Magnetic resonance imaging ; Mathematical analysis ; Medical diagnosis ; Medical imaging ; Medicine ; Medicine & Public Health ; Meniscus ; NMR ; Nuclear magnetic resonance ; Orthopedics ; Patients ; Sensitivity ; Surgery ; Tearing</subject><ispartof>Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2018-08, Vol.26 (8), p.2317-2323</ispartof><rights>European Society of Sports Traumatology, Knee Surgery, Arthroscopy (ESSKA) 2017</rights><rights>Knee Surgery, Sports Traumatology, Arthroscopy is a copyright of Springer, (2017). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c372t-c88ab09761f482ff00c4ffef1083db08aaf9fe47150b15e03c895f039fffe81e3</citedby><cites>FETCH-LOGICAL-c372t-c88ab09761f482ff00c4ffef1083db08aaf9fe47150b15e03c895f039fffe81e3</cites><orcidid>0000-0003-1787-1139</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/s00167-017-4704-6$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00167-017-4704-6$$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/28894908$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Sohn, Dong-Wook</creatorcontrib><creatorcontrib>Bin, Seong-Il</creatorcontrib><creatorcontrib>Kim, Jong-Min</creatorcontrib><creatorcontrib>Lee, Bum-Sik</creatorcontrib><creatorcontrib>Kim, Seon-Jeong</creatorcontrib><title>Discoid lateral meniscus can be overlooked by magnetic resonance imaging in patients with meniscal tears</title><title>Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA</title><addtitle>Knee Surg Sports Traumatol Arthrosc</addtitle><addtitle>Knee Surg Sports Traumatol Arthrosc</addtitle><description>Purpose
MRI evaluation of torn lateral meniscus was compared with arthroscopy. This study calculates the sensitivity, specificity, and accuracy of MRI in determining the presence or absence of discoid lateral meniscus (DLM) for different tear types.
Methods
MR imaging of 156 knees with arthroscopically confirmed lateral meniscus tears was analysed. There were 78 knees (70 patients) in non-DLM group and 78 knees (74 patients) in DLM group on arthroscopy as the reference standard. The presence of DLM on MRI was determined by an orthopaedic surgeon and a radiologist, who were blinded to the arthroscopic findings. The presence of discoid meniscus on MRI was determined by coronal and sagittal measurements, considering the tear pattern of lateral meniscus. The tear pattern was categorized into six types based on arthroscopic findings: horizontal, longitudinal, radial, combined radial, degenerative, and complex tear. The sensitivity, specificity, and accuracy of MRI were calculated for each type of lateral meniscus tear. In addition, we analysed the reason for non-detection of discoid meniscus on preoperative MRI.
Result
The sensitivity for determining the presence of discoid meniscus was 58% for radial tear, 57% for combined radial tear, and 65% for longitudinal tear, whereas the specificity was 100% for all tear groups. In the presence of radial or longitudinal tear, the accuracy of MRI was significantly lower than having no radial and longitudinal tear (
p
< 0.001). The presence of discoid meniscus was not recognized on MRI because of large radial tear (12 knees), deformed bucket-handle tear (6 knees), and inverted flap tear (3 knees).
Conclusions
MRI was not successful in determining the presence or absence of DLM in radial tear, combined radial tear, and longitudinal tear. When there are large radial tear, deformed bucket-handle tear, and inverted flap tear in lateral meniscus, it is recommended to consider the possibility of DLM. This information can help to make accurate diagnosis of DLM, which allows appropriate surgical planning and facilitates patient’s information on poor prognosis of DLM.
Level of evidence
Level I.</description><subject>Accuracy</subject><subject>Arthroscopy</subject><subject>Deformation</subject><subject>Injuries</subject><subject>Knee</subject><subject>Magnetic resonance imaging</subject><subject>Mathematical analysis</subject><subject>Medical diagnosis</subject><subject>Medical imaging</subject><subject>Medicine</subject><subject>Medicine & Public Health</subject><subject>Meniscus</subject><subject>NMR</subject><subject>Nuclear magnetic resonance</subject><subject>Orthopedics</subject><subject>Patients</subject><subject>Sensitivity</subject><subject>Surgery</subject><subject>Tearing</subject><issn>0942-2056</issn><issn>1433-7347</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp1kc9PHCEUx0lTU9e1f0AvhqSXXkYfP2aAo9G2NjHxomfCsI917CxsYabG_17Mbm1i4gny-LwPD76EfGFwygDUWQFgnWqAqUYqkE33gSyYFKJRQqqPZAFG8oZD2x2So1IeAOpWmk_kkGttpAG9IPeXQ_FpWNHRTZjdSDcYa2Uu1LtIe6TpL-Yxpd-4ov0T3bh1xGnwNGNJ0UWPdKi1Ia7pEOnWTQPGqdDHYbrfm6pyQpfLMTkIbiz4eb8uyd2P77cXV831zc9fF-fXjReKT43X2vVgVMeC1DwEAC9DwMBAi1UP2rlgAkrFWuhZiyC8Nm0AYUKlNEOxJN923m1Of2Ysk93UKXAcXcQ0F8uM0MxowaGiX9-gD2nOsU5nOSgO3LQVXBK2o3xOpWQMdpvrm_OTZWBfYrC7GGyNwb7EYLvac7I3z_0GV68d__69AnwHlHoU15j_X_2-9RmI1JOO</recordid><startdate>20180801</startdate><enddate>20180801</enddate><creator>Sohn, Dong-Wook</creator><creator>Bin, Seong-Il</creator><creator>Kim, Jong-Min</creator><creator>Lee, Bum-Sik</creator><creator>Kim, Seon-Jeong</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QO</scope><scope>7RV</scope><scope>7TS</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8FD</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>K9.</scope><scope>KB0</scope><scope>M0S</scope><scope>M1P</scope><scope>NAPCQ</scope><scope>P64</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0003-1787-1139</orcidid></search><sort><creationdate>20180801</creationdate><title>Discoid lateral meniscus can be overlooked by magnetic resonance imaging in patients with meniscal tears</title><author>Sohn, Dong-Wook ; Bin, Seong-Il ; Kim, Jong-Min ; Lee, Bum-Sik ; Kim, Seon-Jeong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c372t-c88ab09761f482ff00c4ffef1083db08aaf9fe47150b15e03c895f039fffe81e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Accuracy</topic><topic>Arthroscopy</topic><topic>Deformation</topic><topic>Injuries</topic><topic>Knee</topic><topic>Magnetic resonance imaging</topic><topic>Mathematical analysis</topic><topic>Medical diagnosis</topic><topic>Medical imaging</topic><topic>Medicine</topic><topic>Medicine & Public Health</topic><topic>Meniscus</topic><topic>NMR</topic><topic>Nuclear magnetic resonance</topic><topic>Orthopedics</topic><topic>Patients</topic><topic>Sensitivity</topic><topic>Surgery</topic><topic>Tearing</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sohn, Dong-Wook</creatorcontrib><creatorcontrib>Bin, Seong-Il</creatorcontrib><creatorcontrib>Kim, Jong-Min</creatorcontrib><creatorcontrib>Lee, Bum-Sik</creatorcontrib><creatorcontrib>Kim, Seon-Jeong</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Biotechnology Research Abstracts</collection><collection>Nursing & Allied Health Database</collection><collection>Physical Education Index</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>Technology Research Database</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>Engineering Research Database</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Database (Alumni Edition)</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Nursing & Allied Health Premium</collection><collection>Biotechnology and BioEngineering Abstracts</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>Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sohn, Dong-Wook</au><au>Bin, Seong-Il</au><au>Kim, Jong-Min</au><au>Lee, Bum-Sik</au><au>Kim, Seon-Jeong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Discoid lateral meniscus can be overlooked by magnetic resonance imaging in patients with meniscal tears</atitle><jtitle>Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA</jtitle><stitle>Knee Surg Sports Traumatol Arthrosc</stitle><addtitle>Knee Surg Sports Traumatol Arthrosc</addtitle><date>2018-08-01</date><risdate>2018</risdate><volume>26</volume><issue>8</issue><spage>2317</spage><epage>2323</epage><pages>2317-2323</pages><issn>0942-2056</issn><eissn>1433-7347</eissn><abstract>Purpose
MRI evaluation of torn lateral meniscus was compared with arthroscopy. This study calculates the sensitivity, specificity, and accuracy of MRI in determining the presence or absence of discoid lateral meniscus (DLM) for different tear types.
Methods
MR imaging of 156 knees with arthroscopically confirmed lateral meniscus tears was analysed. There were 78 knees (70 patients) in non-DLM group and 78 knees (74 patients) in DLM group on arthroscopy as the reference standard. The presence of DLM on MRI was determined by an orthopaedic surgeon and a radiologist, who were blinded to the arthroscopic findings. The presence of discoid meniscus on MRI was determined by coronal and sagittal measurements, considering the tear pattern of lateral meniscus. The tear pattern was categorized into six types based on arthroscopic findings: horizontal, longitudinal, radial, combined radial, degenerative, and complex tear. The sensitivity, specificity, and accuracy of MRI were calculated for each type of lateral meniscus tear. In addition, we analysed the reason for non-detection of discoid meniscus on preoperative MRI.
Result
The sensitivity for determining the presence of discoid meniscus was 58% for radial tear, 57% for combined radial tear, and 65% for longitudinal tear, whereas the specificity was 100% for all tear groups. In the presence of radial or longitudinal tear, the accuracy of MRI was significantly lower than having no radial and longitudinal tear (
p
< 0.001). The presence of discoid meniscus was not recognized on MRI because of large radial tear (12 knees), deformed bucket-handle tear (6 knees), and inverted flap tear (3 knees).
Conclusions
MRI was not successful in determining the presence or absence of DLM in radial tear, combined radial tear, and longitudinal tear. When there are large radial tear, deformed bucket-handle tear, and inverted flap tear in lateral meniscus, it is recommended to consider the possibility of DLM. This information can help to make accurate diagnosis of DLM, which allows appropriate surgical planning and facilitates patient’s information on poor prognosis of DLM.
Level of evidence
Level I.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><pmid>28894908</pmid><doi>10.1007/s00167-017-4704-6</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0003-1787-1139</orcidid></addata></record> |
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| ispartof | Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2018-08, Vol.26 (8), p.2317-2323 |
| issn | 0942-2056 1433-7347 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1938198320 |
| source | Wiley Online Library Journals Frontfile Complete; SpringerLink Journals - AutoHoldings |
| subjects | Accuracy Arthroscopy Deformation Injuries Knee Magnetic resonance imaging Mathematical analysis Medical diagnosis Medical imaging Medicine Medicine & Public Health Meniscus NMR Nuclear magnetic resonance Orthopedics Patients Sensitivity Surgery Tearing |
| title | Discoid lateral meniscus can be overlooked by magnetic resonance imaging in patients with meniscal tears |
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