Trochlear Inclination Angles in Normal and Dysplastic Knees
Abstract Trochlear morphology impacts component position in patellofemoral arthroplasty. We devised a measurement of the trochlear inclination angle (TIA) and determined the average TIA in normal and dysplastic knees. Three hundred twenty-nine consecutive magnetic resonance imagings of normal and dy...
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| Veröffentlicht in: | The Journal of arthroplasty 2013-02, Vol.28 (2), p.214-219 |
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| container_title | The Journal of arthroplasty |
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| creator | Kamath, Atul F., MD Slattery, Thomas R., MD Levack, Ashley E., MAS Wu, Chia H., BA Kneeland, J. Bruce, MD Lonner, Jess H., MD |
| description | Abstract Trochlear morphology impacts component position in patellofemoral arthroplasty. We devised a measurement of the trochlear inclination angle (TIA) and determined the average TIA in normal and dysplastic knees. Three hundred twenty-nine consecutive magnetic resonance imagings of normal and dysplastic knees were evaluated. The TIA was measured by 2 reviewers. The Student t test was used, and intraobserver reliability measurements were made. The mean TIA in normal and dysplastic knees was internally rotated 11.4° (range, 6°-20°) and 9.4° (range, 4°-15°), respectively. The mean TIA did not differ significantly by sex or age. Trochlear inclination angles in both normal and dysplastic knees tend toward internal rotation. Positioning a trochlear patellofemoral arthroplasty component flush with the articular surface of the native trochlea would result in internal rotation malposition. |
| doi_str_mv | 10.1016/j.arth.2012.04.017 |
| format | Article |
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Bruce, MD ; Lonner, Jess H., MD</creator><creatorcontrib>Kamath, Atul F., MD ; Slattery, Thomas R., MD ; Levack, Ashley E., MAS ; Wu, Chia H., BA ; Kneeland, J. Bruce, MD ; Lonner, Jess H., MD</creatorcontrib><description>Abstract Trochlear morphology impacts component position in patellofemoral arthroplasty. We devised a measurement of the trochlear inclination angle (TIA) and determined the average TIA in normal and dysplastic knees. Three hundred twenty-nine consecutive magnetic resonance imagings of normal and dysplastic knees were evaluated. The TIA was measured by 2 reviewers. The Student t test was used, and intraobserver reliability measurements were made. The mean TIA in normal and dysplastic knees was internally rotated 11.4° (range, 6°-20°) and 9.4° (range, 4°-15°), respectively. The mean TIA did not differ significantly by sex or age. Trochlear inclination angles in both normal and dysplastic knees tend toward internal rotation. Positioning a trochlear patellofemoral arthroplasty component flush with the articular surface of the native trochlea would result in internal rotation malposition.</description><identifier>ISSN: 0883-5403</identifier><identifier>EISSN: 1532-8406</identifier><identifier>DOI: 10.1016/j.arth.2012.04.017</identifier><identifier>PMID: 22704031</identifier><language>eng</language><publisher>United States: Elsevier Inc</publisher><subject>Adolescent ; Adult ; Aged ; Aged, 80 and over ; Arthroplasty, Replacement, Knee ; Bone Diseases - diagnosis ; Female ; Femur ; Humans ; knee arthroplasty (replacement) ; Knee Joint ; Knee Prosthesis ; Magnetic Resonance Imaging ; Male ; maltracking, patellofemoral arthroplasty ; Middle Aged ; Orthopedics ; patellofemoral ; Prosthesis Design ; trochlear inclination angle ; Young Adult</subject><ispartof>The Journal of arthroplasty, 2013-02, Vol.28 (2), p.214-219</ispartof><rights>Elsevier Inc.</rights><rights>2013 Elsevier Inc.</rights><rights>Copyright © 2013 Elsevier Inc. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c477t-998de9e41c6e7c152bc81699fb3ac040bf1b7ffd40c475a853baf4450c78509a3</citedby><cites>FETCH-LOGICAL-c477t-998de9e41c6e7c152bc81699fb3ac040bf1b7ffd40c475a853baf4450c78509a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0883540312002665$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22704031$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Kamath, Atul F., MD</creatorcontrib><creatorcontrib>Slattery, Thomas R., MD</creatorcontrib><creatorcontrib>Levack, Ashley E., MAS</creatorcontrib><creatorcontrib>Wu, Chia H., BA</creatorcontrib><creatorcontrib>Kneeland, J. Bruce, MD</creatorcontrib><creatorcontrib>Lonner, Jess H., MD</creatorcontrib><title>Trochlear Inclination Angles in Normal and Dysplastic Knees</title><title>The Journal of arthroplasty</title><addtitle>J Arthroplasty</addtitle><description>Abstract Trochlear morphology impacts component position in patellofemoral arthroplasty. We devised a measurement of the trochlear inclination angle (TIA) and determined the average TIA in normal and dysplastic knees. Three hundred twenty-nine consecutive magnetic resonance imagings of normal and dysplastic knees were evaluated. The TIA was measured by 2 reviewers. The Student t test was used, and intraobserver reliability measurements were made. The mean TIA in normal and dysplastic knees was internally rotated 11.4° (range, 6°-20°) and 9.4° (range, 4°-15°), respectively. The mean TIA did not differ significantly by sex or age. Trochlear inclination angles in both normal and dysplastic knees tend toward internal rotation. Positioning a trochlear patellofemoral arthroplasty component flush with the articular surface of the native trochlea would result in internal rotation malposition.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>Arthroplasty, Replacement, Knee</subject><subject>Bone Diseases - diagnosis</subject><subject>Female</subject><subject>Femur</subject><subject>Humans</subject><subject>knee arthroplasty (replacement)</subject><subject>Knee Joint</subject><subject>Knee Prosthesis</subject><subject>Magnetic Resonance Imaging</subject><subject>Male</subject><subject>maltracking, patellofemoral arthroplasty</subject><subject>Middle Aged</subject><subject>Orthopedics</subject><subject>patellofemoral</subject><subject>Prosthesis Design</subject><subject>trochlear inclination angle</subject><subject>Young Adult</subject><issn>0883-5403</issn><issn>1532-8406</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kUFv1DAQhS0EotuFP8AB5cglYcaxE0cgpKoUqFqVQ9uz5TgT6sXrbO0s0v57HG3hwIHTSKP3nma-x9gbhAoBm_ebysT5oeKAvAJRAbbP2AplzUsloHnOVqBUXUoB9Qk7TWkDgCileMlOOG8hr3HFPtzFyT54MrG4DNa7YGY3heIs_PCUCheKmylujS9MGIrPh7TzJs3OFleBKL1iL0bjE71-mmt2_-Xi7vxbef396-X52XVpRdvOZdepgToSaBtqLUreW4VN1419bWw-ox-xb8dxEJD10ihZ92YUQoJtlYTO1Gv27pi7i9PjntKsty5Z8t4EmvZJI1ccRKPyt2vGj1Ibp5QijXoX3dbEg0bQCzS90Qs0vUDTIHSGlk1vn_L3_ZaGv5Y_lLLg41FA-ctfjqJO1lGwNLhIdtbD5P6f_-kf-wLaWeN_0oHSZtrHkPlp1Cl79O1S29IacgDeNLL-DVFVkVA</recordid><startdate>20130201</startdate><enddate>20130201</enddate><creator>Kamath, Atul F., MD</creator><creator>Slattery, Thomas R., MD</creator><creator>Levack, Ashley E., MAS</creator><creator>Wu, Chia H., BA</creator><creator>Kneeland, J. Bruce, MD</creator><creator>Lonner, Jess H., MD</creator><general>Elsevier Inc</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>7X8</scope></search><sort><creationdate>20130201</creationdate><title>Trochlear Inclination Angles in Normal and Dysplastic Knees</title><author>Kamath, Atul F., MD ; Slattery, Thomas R., MD ; Levack, Ashley E., MAS ; Wu, Chia H., BA ; Kneeland, J. Bruce, MD ; Lonner, Jess H., MD</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c477t-998de9e41c6e7c152bc81699fb3ac040bf1b7ffd40c475a853baf4450c78509a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Aged</topic><topic>Aged, 80 and over</topic><topic>Arthroplasty, Replacement, Knee</topic><topic>Bone Diseases - diagnosis</topic><topic>Female</topic><topic>Femur</topic><topic>Humans</topic><topic>knee arthroplasty (replacement)</topic><topic>Knee Joint</topic><topic>Knee Prosthesis</topic><topic>Magnetic Resonance Imaging</topic><topic>Male</topic><topic>maltracking, patellofemoral arthroplasty</topic><topic>Middle Aged</topic><topic>Orthopedics</topic><topic>patellofemoral</topic><topic>Prosthesis Design</topic><topic>trochlear inclination angle</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kamath, Atul F., MD</creatorcontrib><creatorcontrib>Slattery, Thomas R., MD</creatorcontrib><creatorcontrib>Levack, Ashley E., MAS</creatorcontrib><creatorcontrib>Wu, Chia H., BA</creatorcontrib><creatorcontrib>Kneeland, J. Bruce, MD</creatorcontrib><creatorcontrib>Lonner, Jess H., MD</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>The Journal of arthroplasty</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kamath, Atul F., MD</au><au>Slattery, Thomas R., MD</au><au>Levack, Ashley E., MAS</au><au>Wu, Chia H., BA</au><au>Kneeland, J. Bruce, MD</au><au>Lonner, Jess H., MD</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Trochlear Inclination Angles in Normal and Dysplastic Knees</atitle><jtitle>The Journal of arthroplasty</jtitle><addtitle>J Arthroplasty</addtitle><date>2013-02-01</date><risdate>2013</risdate><volume>28</volume><issue>2</issue><spage>214</spage><epage>219</epage><pages>214-219</pages><issn>0883-5403</issn><eissn>1532-8406</eissn><abstract>Abstract Trochlear morphology impacts component position in patellofemoral arthroplasty. We devised a measurement of the trochlear inclination angle (TIA) and determined the average TIA in normal and dysplastic knees. Three hundred twenty-nine consecutive magnetic resonance imagings of normal and dysplastic knees were evaluated. The TIA was measured by 2 reviewers. The Student t test was used, and intraobserver reliability measurements were made. The mean TIA in normal and dysplastic knees was internally rotated 11.4° (range, 6°-20°) and 9.4° (range, 4°-15°), respectively. The mean TIA did not differ significantly by sex or age. Trochlear inclination angles in both normal and dysplastic knees tend toward internal rotation. Positioning a trochlear patellofemoral arthroplasty component flush with the articular surface of the native trochlea would result in internal rotation malposition.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>22704031</pmid><doi>10.1016/j.arth.2012.04.017</doi><tpages>6</tpages></addata></record> |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Adolescent Adult Aged Aged, 80 and over Arthroplasty, Replacement, Knee Bone Diseases - diagnosis Female Femur Humans knee arthroplasty (replacement) Knee Joint Knee Prosthesis Magnetic Resonance Imaging Male maltracking, patellofemoral arthroplasty Middle Aged Orthopedics patellofemoral Prosthesis Design trochlear inclination angle Young Adult |
| title | Trochlear Inclination Angles in Normal and Dysplastic Knees |
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