A stereophotographic study of ankle joint contact area
The purpose of this study was to measure the ankle joint contact area under physiological load magnitudes using a stereophotography technique that allows accurate analysis of the entire joint surface without disrupting the joint during loading. Ten cadaveric foot and ankle specimens were loaded to 1...
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| Veröffentlicht in: | Journal of orthopaedic research 2007-11, Vol.25 (11), p.1465-1473 |
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| container_title | Journal of orthopaedic research |
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| creator | Millington, Stephen Grabner, Markus Wozelka, Ralph Hurwitz, Shepard Crandall, Jeff |
| description | The purpose of this study was to measure the ankle joint contact area under physiological load magnitudes using a stereophotography technique that allows accurate analysis of the entire joint surface without disrupting the joint during loading. Ten cadaveric foot and ankle specimens were loaded to 1000 N in neutral, and 20° dorsiflexion, supination, pronation, and plantarflexion. Photo targets rigidly fixed to each of the bones were imaged in the loaded joint position using a high‐resolution stereophotography system. After testing, each ankle was disarticulated and the joint surfaces imaged relative to the photo targets. The photo targets were then used to spatially register the joint surfaces into the loaded joint position; the overlap of the surfaces was used to determine the joint contact area. The mean talo–tibia contact area was greatest in dorsiflexion 7.34 ± 1.69 cm2 and was significantly larger than in plantar flexion (p |
| doi_str_mv | 10.1002/jor.20425 |
| format | Article |
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Ten cadaveric foot and ankle specimens were loaded to 1000 N in neutral, and 20° dorsiflexion, supination, pronation, and plantarflexion. Photo targets rigidly fixed to each of the bones were imaged in the loaded joint position using a high‐resolution stereophotography system. After testing, each ankle was disarticulated and the joint surfaces imaged relative to the photo targets. The photo targets were then used to spatially register the joint surfaces into the loaded joint position; the overlap of the surfaces was used to determine the joint contact area. The mean talo–tibia contact area was greatest in dorsiflexion 7.34 ± 1.69 cm2 and was significantly larger than in plantar flexion (p < 0.05), which showed the smallest joint contact area 4.39 ± 1.41 cm2. Considering talo–fibula, the maximum contact area was measured in dorsiflexion, 2.02 ± 0.78 cm2, and the minimum contact area occurred in pronation, 0.77 ± 0.49 cm2, respectively (p < 0.05). The reported stereophotography technique allows measurement of the joint contact area without disrupting the joint during loading. The contact area is larger than previously reported, as the entire joint surface was analyzed. Joint contact extends over both the talar dome and the talar shoulders where osteochondritis dissecans lesions commonly occur. © 2007 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 25:1465–1473, 2007</description><identifier>ISSN: 0736-0266</identifier><identifier>EISSN: 1554-527X</identifier><identifier>DOI: 10.1002/jor.20425</identifier><identifier>PMID: 17580338</identifier><language>eng</language><publisher>Hoboken: Wiley Subscription Services, Inc., A Wiley Company</publisher><subject>ankle ; Ankle Joint - physiology ; Female ; Fibula - physiology ; Humans ; joint contact area ; joint loading ; Male ; Middle Aged ; Photogrammetry - methods ; Range of Motion, Articular - physiology ; stereophotography ; Talus - physiology ; Tibia - physiology ; Weight-Bearing - physiology</subject><ispartof>Journal of orthopaedic research, 2007-11, Vol.25 (11), p.1465-1473</ispartof><rights>Copyright © 2007 Orthopaedic Research Society</rights><rights>(c) 2007 Orthopaedic Research Society.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4625-5a5089bc751ff37da2a321d623b443ab701252db75e302fb4bdb72a0a1fdf5d23</citedby><cites>FETCH-LOGICAL-c4625-5a5089bc751ff37da2a321d623b443ab701252db75e302fb4bdb72a0a1fdf5d23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fjor.20425$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fjor.20425$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,1427,27903,27904,45553,45554,46387,46811</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17580338$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Millington, Stephen</creatorcontrib><creatorcontrib>Grabner, Markus</creatorcontrib><creatorcontrib>Wozelka, Ralph</creatorcontrib><creatorcontrib>Hurwitz, Shepard</creatorcontrib><creatorcontrib>Crandall, Jeff</creatorcontrib><title>A stereophotographic study of ankle joint contact area</title><title>Journal of orthopaedic research</title><addtitle>J. Orthop. Res</addtitle><description>The purpose of this study was to measure the ankle joint contact area under physiological load magnitudes using a stereophotography technique that allows accurate analysis of the entire joint surface without disrupting the joint during loading. Ten cadaveric foot and ankle specimens were loaded to 1000 N in neutral, and 20° dorsiflexion, supination, pronation, and plantarflexion. Photo targets rigidly fixed to each of the bones were imaged in the loaded joint position using a high‐resolution stereophotography system. After testing, each ankle was disarticulated and the joint surfaces imaged relative to the photo targets. The photo targets were then used to spatially register the joint surfaces into the loaded joint position; the overlap of the surfaces was used to determine the joint contact area. The mean talo–tibia contact area was greatest in dorsiflexion 7.34 ± 1.69 cm2 and was significantly larger than in plantar flexion (p < 0.05), which showed the smallest joint contact area 4.39 ± 1.41 cm2. Considering talo–fibula, the maximum contact area was measured in dorsiflexion, 2.02 ± 0.78 cm2, and the minimum contact area occurred in pronation, 0.77 ± 0.49 cm2, respectively (p < 0.05). The reported stereophotography technique allows measurement of the joint contact area without disrupting the joint during loading. The contact area is larger than previously reported, as the entire joint surface was analyzed. Joint contact extends over both the talar dome and the talar shoulders where osteochondritis dissecans lesions commonly occur. © 2007 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 25:1465–1473, 2007</description><subject>ankle</subject><subject>Ankle Joint - physiology</subject><subject>Female</subject><subject>Fibula - physiology</subject><subject>Humans</subject><subject>joint contact area</subject><subject>joint loading</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Photogrammetry - methods</subject><subject>Range of Motion, Articular - physiology</subject><subject>stereophotography</subject><subject>Talus - physiology</subject><subject>Tibia - physiology</subject><subject>Weight-Bearing - physiology</subject><issn>0736-0266</issn><issn>1554-527X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kD1PwzAQQC0EoqUw8AdQJiSGtGc7ttOxqqCAqhbxIdgsJ7Fp2rQOdiLovyeQAhPTnU7v3vAQOsXQxwBksLSuTyAibA91MWNRyIh42UddEJSHQDjvoCPvlwAgMIkPUQcLFgOlcRfxUeAr7bQtF7ayr06VizxtTnW2DawJ1GZV6GBp800VpHZTqbQKlNPqGB0YVXh9sps99HR1-Ti-Dqfzyc14NA3TiBMWMsUgHiapYNgYKjJFFCU444QmUURVIgATRrJEME2BmCRKmp0oUNhkhmWE9tB56y2dfau1r-Q696kuCrXRtvaSx5EQfMgb8KIFU2e9d9rI0uVr5bYSg_yKJJtI8jtSw57tpHWy1tkfuavSAIMWeM8Lvf3fJG_n9z_KsP3Im5ofvx_KrSQXVDD5PJtIKh5md-N4Jif0E2cof20</recordid><startdate>200711</startdate><enddate>200711</enddate><creator>Millington, Stephen</creator><creator>Grabner, Markus</creator><creator>Wozelka, Ralph</creator><creator>Hurwitz, Shepard</creator><creator>Crandall, Jeff</creator><general>Wiley Subscription Services, Inc., A Wiley Company</general><scope>BSCLL</scope><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>200711</creationdate><title>A stereophotographic study of ankle joint contact area</title><author>Millington, Stephen ; Grabner, Markus ; Wozelka, Ralph ; Hurwitz, Shepard ; Crandall, Jeff</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4625-5a5089bc751ff37da2a321d623b443ab701252db75e302fb4bdb72a0a1fdf5d23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>ankle</topic><topic>Ankle Joint - physiology</topic><topic>Female</topic><topic>Fibula - physiology</topic><topic>Humans</topic><topic>joint contact area</topic><topic>joint loading</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Photogrammetry - methods</topic><topic>Range of Motion, Articular - physiology</topic><topic>stereophotography</topic><topic>Talus - physiology</topic><topic>Tibia - physiology</topic><topic>Weight-Bearing - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Millington, Stephen</creatorcontrib><creatorcontrib>Grabner, Markus</creatorcontrib><creatorcontrib>Wozelka, Ralph</creatorcontrib><creatorcontrib>Hurwitz, Shepard</creatorcontrib><creatorcontrib>Crandall, Jeff</creatorcontrib><collection>Istex</collection><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>Millington, Stephen</au><au>Grabner, Markus</au><au>Wozelka, Ralph</au><au>Hurwitz, Shepard</au><au>Crandall, Jeff</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A stereophotographic study of ankle joint contact area</atitle><jtitle>Journal of orthopaedic research</jtitle><addtitle>J. Orthop. Res</addtitle><date>2007-11</date><risdate>2007</risdate><volume>25</volume><issue>11</issue><spage>1465</spage><epage>1473</epage><pages>1465-1473</pages><issn>0736-0266</issn><eissn>1554-527X</eissn><abstract>The purpose of this study was to measure the ankle joint contact area under physiological load magnitudes using a stereophotography technique that allows accurate analysis of the entire joint surface without disrupting the joint during loading. Ten cadaveric foot and ankle specimens were loaded to 1000 N in neutral, and 20° dorsiflexion, supination, pronation, and plantarflexion. Photo targets rigidly fixed to each of the bones were imaged in the loaded joint position using a high‐resolution stereophotography system. After testing, each ankle was disarticulated and the joint surfaces imaged relative to the photo targets. The photo targets were then used to spatially register the joint surfaces into the loaded joint position; the overlap of the surfaces was used to determine the joint contact area. The mean talo–tibia contact area was greatest in dorsiflexion 7.34 ± 1.69 cm2 and was significantly larger than in plantar flexion (p < 0.05), which showed the smallest joint contact area 4.39 ± 1.41 cm2. Considering talo–fibula, the maximum contact area was measured in dorsiflexion, 2.02 ± 0.78 cm2, and the minimum contact area occurred in pronation, 0.77 ± 0.49 cm2, respectively (p < 0.05). The reported stereophotography technique allows measurement of the joint contact area without disrupting the joint during loading. The contact area is larger than previously reported, as the entire joint surface was analyzed. Joint contact extends over both the talar dome and the talar shoulders where osteochondritis dissecans lesions commonly occur. © 2007 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 25:1465–1473, 2007</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><pmid>17580338</pmid><doi>10.1002/jor.20425</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | ankle Ankle Joint - physiology Female Fibula - physiology Humans joint contact area joint loading Male Middle Aged Photogrammetry - methods Range of Motion, Articular - physiology stereophotography Talus - physiology Tibia - physiology Weight-Bearing - physiology |
| title | A stereophotographic study of ankle joint contact area |
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