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Complete tear of the lateral meniscus posterior root is associated with meniscal extrusion in anterior cruciate ligament deficient knees
ABSTRACT This study aimed to evaluate the relationship between preoperative lateral meniscal extrusion (LME) and arthroscopic findings of lateral meniscus posterior root tear (LMPRT) in knees with anterior cruciate ligament (ACL) tear. Thirty‐five knees that had LMPRTs with concomitant ACL tears on...
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| Published in: | Journal of orthopaedic research 2018-07, Vol.36 (7), p.1894-1900 |
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| cites | cdi_FETCH-LOGICAL-c3601-aec4c506e3c9dd6b719686dc21955c339f89c53ac098eb9d7acf52aefcaf5f393 |
| container_end_page | 1900 |
| container_issue | 7 |
| container_start_page | 1894 |
| container_title | Journal of orthopaedic research |
| container_volume | 36 |
| creator | Kamatsuki, Yusuke Furumatsu, Takayuki Fujii, Masataka Kodama, Yuya Miyazawa, Shinichi Hino, Tomohito Ozaki, Toshifumi |
| description | ABSTRACT
This study aimed to evaluate the relationship between preoperative lateral meniscal extrusion (LME) and arthroscopic findings of lateral meniscus posterior root tear (LMPRT) in knees with anterior cruciate ligament (ACL) tear. Thirty‐five knees that had LMPRTs with concomitant ACL tears on arthroscopy were evaluated. Patients were divided into two groups, partial and complete root tears, via arthroscopic findings at the time of ACL reconstruction. For comparison, we added two groups, using the same database; 20 normal knees (normal group) and 20 ACL‐injured knees without LM injury (intact LM group). We retrospectively measured preoperative LMEs using magnetic resonance imaging (MRI). Twenty‐three knees had partial LMPRTs. Complete LMPRTs were observed in 12 knees. The average LME was −0.1 ± 0.4 mm in the normal group, 0.2 ± 0.5 mm in the intact LM group, 0.4 ± 0.8 mm in the partial LMPRT group, and 2.0 ± 0.6 mm in the complete LMPRT group. A significant difference in preoperative LMEs was observed between the complete LMPRT group and the other groups (p |
| doi_str_mv | 10.1002/jor.23861 |
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This study aimed to evaluate the relationship between preoperative lateral meniscal extrusion (LME) and arthroscopic findings of lateral meniscus posterior root tear (LMPRT) in knees with anterior cruciate ligament (ACL) tear. Thirty‐five knees that had LMPRTs with concomitant ACL tears on arthroscopy were evaluated. Patients were divided into two groups, partial and complete root tears, via arthroscopic findings at the time of ACL reconstruction. For comparison, we added two groups, using the same database; 20 normal knees (normal group) and 20 ACL‐injured knees without LM injury (intact LM group). We retrospectively measured preoperative LMEs using magnetic resonance imaging (MRI). Twenty‐three knees had partial LMPRTs. Complete LMPRTs were observed in 12 knees. The average LME was −0.1 ± 0.4 mm in the normal group, 0.2 ± 0.5 mm in the intact LM group, 0.4 ± 0.8 mm in the partial LMPRT group, and 2.0 ± 0.6 mm in the complete LMPRT group. A significant difference in preoperative LMEs was observed between the complete LMPRT group and the other groups (p < 0.001). The receiver operating curve analysis, which distinguishes a partial tear from a complete tear, identified an optimal cut‐off point of 1.1 mm for preoperative LME. This LME cut‐off had a sensitivity of 100% and specificity of 83% for complete LMPRT. We found that preoperative LMEs were larger in complete LMPRTs associated with ACL injuries than in partial LMPRTs. Our results suggest that preoperative MRI‐detected LME may be a useful indicator for estimating LMPRT severity in ACL‐injured knees. Level of evidence: Retrospective comparative study level IV. © 2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:1894–1900, 2018.
Preoperative lateral meniscal extrusions (LMEs) on magnetic resonance imaging (MRI) were larger in complete lateral meniscus posterior root tears (LMPRTs) associated with anterior cruciate ligament (ACL) injuries than in partial LMPRTs. The receiver operating curve analysis identified an optimal cut‐off point of 1.1 mm for preoperative LME, which had a sensitivity of 100% and specificity of 83% for complete LMPRT. Our results suggest that preoperative MRI‐detected LME may be a useful indicator for estimating LMPRT severity in ACL‐injured knees.</description><identifier>ISSN: 0736-0266</identifier><identifier>EISSN: 1554-527X</identifier><identifier>DOI: 10.1002/jor.23861</identifier><identifier>PMID: 29369416</identifier><language>eng</language><publisher>United States</publisher><subject>Adolescent ; Adult ; anterior cruciate ligament ; Anterior Cruciate Ligament - surgery ; Anterior Cruciate Ligament Injuries - complications ; Anterior Cruciate Ligament Reconstruction ; Arthroscopy ; Female ; Humans ; Joint Instability - pathology ; lateral meniscus ; magnetic resonance imaging ; Male ; meniscal extrusion ; Menisci, Tibial - pathology ; Menisci, Tibial - physiopathology ; Middle Aged ; Observer Variation ; posterior root tear ; Reproducibility of Results ; Retrospective Studies ; ROC Curve ; Sensitivity and Specificity ; Tibial Meniscus Injuries - complications ; Young Adult</subject><ispartof>Journal of orthopaedic research, 2018-07, Vol.36 (7), p.1894-1900</ispartof><rights>2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3601-aec4c506e3c9dd6b719686dc21955c339f89c53ac098eb9d7acf52aefcaf5f393</citedby><cites>FETCH-LOGICAL-c3601-aec4c506e3c9dd6b719686dc21955c339f89c53ac098eb9d7acf52aefcaf5f393</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29369416$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Kamatsuki, Yusuke</creatorcontrib><creatorcontrib>Furumatsu, Takayuki</creatorcontrib><creatorcontrib>Fujii, Masataka</creatorcontrib><creatorcontrib>Kodama, Yuya</creatorcontrib><creatorcontrib>Miyazawa, Shinichi</creatorcontrib><creatorcontrib>Hino, Tomohito</creatorcontrib><creatorcontrib>Ozaki, Toshifumi</creatorcontrib><title>Complete tear of the lateral meniscus posterior root is associated with meniscal extrusion in anterior cruciate ligament deficient knees</title><title>Journal of orthopaedic research</title><addtitle>J Orthop Res</addtitle><description>ABSTRACT
This study aimed to evaluate the relationship between preoperative lateral meniscal extrusion (LME) and arthroscopic findings of lateral meniscus posterior root tear (LMPRT) in knees with anterior cruciate ligament (ACL) tear. Thirty‐five knees that had LMPRTs with concomitant ACL tears on arthroscopy were evaluated. Patients were divided into two groups, partial and complete root tears, via arthroscopic findings at the time of ACL reconstruction. For comparison, we added two groups, using the same database; 20 normal knees (normal group) and 20 ACL‐injured knees without LM injury (intact LM group). We retrospectively measured preoperative LMEs using magnetic resonance imaging (MRI). Twenty‐three knees had partial LMPRTs. Complete LMPRTs were observed in 12 knees. The average LME was −0.1 ± 0.4 mm in the normal group, 0.2 ± 0.5 mm in the intact LM group, 0.4 ± 0.8 mm in the partial LMPRT group, and 2.0 ± 0.6 mm in the complete LMPRT group. A significant difference in preoperative LMEs was observed between the complete LMPRT group and the other groups (p < 0.001). The receiver operating curve analysis, which distinguishes a partial tear from a complete tear, identified an optimal cut‐off point of 1.1 mm for preoperative LME. This LME cut‐off had a sensitivity of 100% and specificity of 83% for complete LMPRT. We found that preoperative LMEs were larger in complete LMPRTs associated with ACL injuries than in partial LMPRTs. Our results suggest that preoperative MRI‐detected LME may be a useful indicator for estimating LMPRT severity in ACL‐injured knees. Level of evidence: Retrospective comparative study level IV. © 2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:1894–1900, 2018.
Preoperative lateral meniscal extrusions (LMEs) on magnetic resonance imaging (MRI) were larger in complete lateral meniscus posterior root tears (LMPRTs) associated with anterior cruciate ligament (ACL) injuries than in partial LMPRTs. The receiver operating curve analysis identified an optimal cut‐off point of 1.1 mm for preoperative LME, which had a sensitivity of 100% and specificity of 83% for complete LMPRT. Our results suggest that preoperative MRI‐detected LME may be a useful indicator for estimating LMPRT severity in ACL‐injured knees.</description><subject>Adolescent</subject><subject>Adult</subject><subject>anterior cruciate ligament</subject><subject>Anterior Cruciate Ligament - surgery</subject><subject>Anterior Cruciate Ligament Injuries - complications</subject><subject>Anterior Cruciate Ligament Reconstruction</subject><subject>Arthroscopy</subject><subject>Female</subject><subject>Humans</subject><subject>Joint Instability - pathology</subject><subject>lateral meniscus</subject><subject>magnetic resonance imaging</subject><subject>Male</subject><subject>meniscal extrusion</subject><subject>Menisci, Tibial - pathology</subject><subject>Menisci, Tibial - physiopathology</subject><subject>Middle Aged</subject><subject>Observer Variation</subject><subject>posterior root tear</subject><subject>Reproducibility of Results</subject><subject>Retrospective Studies</subject><subject>ROC Curve</subject><subject>Sensitivity and Specificity</subject><subject>Tibial Meniscus Injuries - complications</subject><subject>Young Adult</subject><issn>0736-0266</issn><issn>1554-527X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp10MtKAzEUBuAgiq2XhS8gWepibDJpMpOlFK8UBFFwN6SZE5s6M6lJhuob-NjGtrpzlUP4zs_hR-iEkgtKSD5aOH-Rs1LQHTSknI8znhcvu2hICiYykgsxQAchLAghBc3LfTTIJRNyTMUQfU1cu2wgAo6gPHYGxzngRkXwqsEtdDboPuClC-nHOo-9cxHbgFUITtvkaryycb6laQc-ou-DdR22HVbddk37fq1xY19VshHXYKy2P9NbBxCO0J5RTYDj7XuInq-vnia32fTh5m5yOc00E4RmCvRYcyKAaVnXYlZQKUpR65xKzjVj0pRSc6Y0kSXMZF0obXiuwGhluGGSHaKzTe7Su_ceQqzadDc0jerA9aGiUlJapgJJoucbqr0LwYOplt62yn9WlFQ_xVep-GpdfLKn29h-1kL9J3-bTmC0ASvbwOf_SdX9w-Mm8hv58ZFJ</recordid><startdate>201807</startdate><enddate>201807</enddate><creator>Kamatsuki, Yusuke</creator><creator>Furumatsu, Takayuki</creator><creator>Fujii, Masataka</creator><creator>Kodama, Yuya</creator><creator>Miyazawa, Shinichi</creator><creator>Hino, Tomohito</creator><creator>Ozaki, Toshifumi</creator><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>7X8</scope></search><sort><creationdate>201807</creationdate><title>Complete tear of the lateral meniscus posterior root is associated with meniscal extrusion in anterior cruciate ligament deficient knees</title><author>Kamatsuki, Yusuke ; Furumatsu, Takayuki ; Fujii, Masataka ; Kodama, Yuya ; Miyazawa, Shinichi ; Hino, Tomohito ; Ozaki, Toshifumi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3601-aec4c506e3c9dd6b719686dc21955c339f89c53ac098eb9d7acf52aefcaf5f393</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>anterior cruciate ligament</topic><topic>Anterior Cruciate Ligament - surgery</topic><topic>Anterior Cruciate Ligament Injuries - complications</topic><topic>Anterior Cruciate Ligament Reconstruction</topic><topic>Arthroscopy</topic><topic>Female</topic><topic>Humans</topic><topic>Joint Instability - pathology</topic><topic>lateral meniscus</topic><topic>magnetic resonance imaging</topic><topic>Male</topic><topic>meniscal extrusion</topic><topic>Menisci, Tibial - pathology</topic><topic>Menisci, Tibial - physiopathology</topic><topic>Middle Aged</topic><topic>Observer Variation</topic><topic>posterior root tear</topic><topic>Reproducibility of Results</topic><topic>Retrospective Studies</topic><topic>ROC Curve</topic><topic>Sensitivity and Specificity</topic><topic>Tibial Meniscus Injuries - complications</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kamatsuki, Yusuke</creatorcontrib><creatorcontrib>Furumatsu, Takayuki</creatorcontrib><creatorcontrib>Fujii, Masataka</creatorcontrib><creatorcontrib>Kodama, Yuya</creatorcontrib><creatorcontrib>Miyazawa, Shinichi</creatorcontrib><creatorcontrib>Hino, Tomohito</creatorcontrib><creatorcontrib>Ozaki, Toshifumi</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of orthopaedic research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kamatsuki, Yusuke</au><au>Furumatsu, Takayuki</au><au>Fujii, Masataka</au><au>Kodama, Yuya</au><au>Miyazawa, Shinichi</au><au>Hino, Tomohito</au><au>Ozaki, Toshifumi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Complete tear of the lateral meniscus posterior root is associated with meniscal extrusion in anterior cruciate ligament deficient knees</atitle><jtitle>Journal of orthopaedic research</jtitle><addtitle>J Orthop Res</addtitle><date>2018-07</date><risdate>2018</risdate><volume>36</volume><issue>7</issue><spage>1894</spage><epage>1900</epage><pages>1894-1900</pages><issn>0736-0266</issn><eissn>1554-527X</eissn><abstract>ABSTRACT
This study aimed to evaluate the relationship between preoperative lateral meniscal extrusion (LME) and arthroscopic findings of lateral meniscus posterior root tear (LMPRT) in knees with anterior cruciate ligament (ACL) tear. Thirty‐five knees that had LMPRTs with concomitant ACL tears on arthroscopy were evaluated. Patients were divided into two groups, partial and complete root tears, via arthroscopic findings at the time of ACL reconstruction. For comparison, we added two groups, using the same database; 20 normal knees (normal group) and 20 ACL‐injured knees without LM injury (intact LM group). We retrospectively measured preoperative LMEs using magnetic resonance imaging (MRI). Twenty‐three knees had partial LMPRTs. Complete LMPRTs were observed in 12 knees. The average LME was −0.1 ± 0.4 mm in the normal group, 0.2 ± 0.5 mm in the intact LM group, 0.4 ± 0.8 mm in the partial LMPRT group, and 2.0 ± 0.6 mm in the complete LMPRT group. A significant difference in preoperative LMEs was observed between the complete LMPRT group and the other groups (p < 0.001). The receiver operating curve analysis, which distinguishes a partial tear from a complete tear, identified an optimal cut‐off point of 1.1 mm for preoperative LME. This LME cut‐off had a sensitivity of 100% and specificity of 83% for complete LMPRT. We found that preoperative LMEs were larger in complete LMPRTs associated with ACL injuries than in partial LMPRTs. Our results suggest that preoperative MRI‐detected LME may be a useful indicator for estimating LMPRT severity in ACL‐injured knees. Level of evidence: Retrospective comparative study level IV. © 2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:1894–1900, 2018.
Preoperative lateral meniscal extrusions (LMEs) on magnetic resonance imaging (MRI) were larger in complete lateral meniscus posterior root tears (LMPRTs) associated with anterior cruciate ligament (ACL) injuries than in partial LMPRTs. The receiver operating curve analysis identified an optimal cut‐off point of 1.1 mm for preoperative LME, which had a sensitivity of 100% and specificity of 83% for complete LMPRT. Our results suggest that preoperative MRI‐detected LME may be a useful indicator for estimating LMPRT severity in ACL‐injured knees.</abstract><cop>United States</cop><pmid>29369416</pmid><doi>10.1002/jor.23861</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Adolescent Adult anterior cruciate ligament Anterior Cruciate Ligament - surgery Anterior Cruciate Ligament Injuries - complications Anterior Cruciate Ligament Reconstruction Arthroscopy Female Humans Joint Instability - pathology lateral meniscus magnetic resonance imaging Male meniscal extrusion Menisci, Tibial - pathology Menisci, Tibial - physiopathology Middle Aged Observer Variation posterior root tear Reproducibility of Results Retrospective Studies ROC Curve Sensitivity and Specificity Tibial Meniscus Injuries - complications Young Adult |
| title | Complete tear of the lateral meniscus posterior root is associated with meniscal extrusion in anterior cruciate ligament deficient knees |
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