{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T01:30:38Z","timestamp":1790818238733,"version":"4.1.0"},"reference-count":98,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2021,8,16]],"date-time":"2021-08-16T00:00:00Z","timestamp":1629072000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100010663","name":"H2020 European Research Council","doi-asserted-by":"publisher","award":["ERC\u20102016\u2010STG\u2010715300"],"award-info":[{"award-number":["ERC\u20102016\u2010STG\u2010715300"]}],"id":[{"id":"10.13039\/100010663","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Anatomy"],"published-print":{"date-parts":[[2022,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The patella is the largest sesamoid bone of the skeleton. It is strongly involved in the knee, improving output force and velocity of the knee extensors, and thus plays a major role in locomotion and limb stability. However, the relationships between its structure and functional constraints, that would enable a better understanding of limb bone functional adaptations, are poorly known. This contribution proposes a comparative analysis, both qualitative and quantitative, of the microanatomy of the whole patella in perissodactyls, which show a wide range of morphologies, masses, and locomotor abilities, in order to investigate how the microanatomy of the patella adapts to evolutionary constraints. The inner structure of the patella consists of a spongiosa surrounded by a compact cortex. Contrary to our expectations, there is no increase in compactness with bone size, and thus body size and weight, but only an increase in the tightness of the spongiosa. No particular thickening of the cortex associated with muscle insertions is noticed but a strong thickening is observed anteriorly at about mid\u2010length, where the strong intermediate patellar ligament inserts. The trabeculae are mainly oriented perpendicularly to the posterior articular surface, which highlights that the main stress is anteroposteriorly directed, maintaining the patella against the femoral trochlea. Conversely, anteriorly, trabeculae are rather circumferentially oriented, following the insertion of the patellar ligament and, possibly also, of the quadriceps tendon. A strong variation is observed among perissodactyl families but also intraspecifically, which is in accordance with previous studies suggesting a higher variability in sesamoid bones. Clear trends are nevertheless observed between the three families. Equids have a much thinner cortex than ceratomorphs. Rhinos and equids, both characterized by a development of the medial border, show an increase in trabecular density laterally suggesting stronger stresses laterally. The inner structure in tapirs is more homogeneous despite the absence of medial development of the medial border with no \u201ccompensation\u201d of the inner structure, which suggests different stresses on their knees associated with a different morphology of their patellofemoral joint.<\/jats:p>","DOI":"10.1111\/joa.13530","type":"journal-article","created":{"date-parts":[[2021,8,17]],"date-time":"2021-08-17T04:30:06Z","timestamp":1629174606000},"page":"50-65","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Sesamoid bones also show functional adaptation in their microanatomy\u2014The example of the patella in Perissodactyla"],"prefix":"10.1111","volume":"240","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8789-5545","authenticated-orcid":false,"given":"Alexandra","family":"Houssaye","sequence":"first","affiliation":[{"name":"D\u00e9partement Adaptations du vivant UMR 7179 CNRS\/Mus\u00e9um National d'Histoire Naturelle Paris France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adrien","family":"de Perthuis","sequence":"additional","affiliation":[{"name":"D\u00e9partement Adaptations du vivant UMR 7179 CNRS\/Mus\u00e9um National d'Histoire Naturelle Paris France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guillaume","family":"Hou\u00e9e","sequence":"additional","affiliation":[{"name":"D\u00e9partement Adaptations du vivant UMR 7179 CNRS\/Mus\u00e9um National d'Histoire Naturelle Paris France"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2021,8,16]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/ahe.12543"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4612-4188-1_3"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469\u20107998.1985.tb05622.x"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469-7998.1992.tb04344.x"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/jzo.12485"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1098\/rspb.2018.0270"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.bone.2011.08.020"},{"key":"e_1_2_8_9_1","volume-title":"Anatomie compar\u00e9e des mammif\u00e8res domestiques. 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