{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T21:15:09Z","timestamp":1785618909843,"version":"3.56.0"},"reference-count":17,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2022,8,24]],"date-time":"2022-08-24T00:00:00Z","timestamp":1661299200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004735","name":"Natural Science Foundation of Hunan Province","doi-asserted-by":"publisher","award":["2019JJ30035"],"award-info":[{"award-number":["2019JJ30035"]}],"id":[{"id":"10.13039\/501100004735","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004735","name":"Natural Science Foundation of Hunan Province","doi-asserted-by":"publisher","award":["2018JJ2590"],"award-info":[{"award-number":["2018JJ2590"]}],"id":[{"id":"10.13039\/501100004735","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004735","name":"Natural Science Foundation of Hunan Province","doi-asserted-by":"publisher","award":["2018JJ2590"],"award-info":[{"award-number":["2018JJ2590"]}],"id":[{"id":"10.13039\/501100004735","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004735","name":"Natural Science Foundation of Hunan Province","doi-asserted-by":"publisher","award":["2019JJ30035"],"award-info":[{"award-number":["2019JJ30035"]}],"id":[{"id":"10.13039\/501100004735","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Orthopaedic Surgery"],"published-print":{"date-parts":[[2022,11]]},"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>Extensive patellar tendon ossification is very uncommon and requires surgical intervention when ossification significantly affects knee function. While various approaches and grafts are available for reconstructing ruptured patellar tendons, there is a paucity of literature regarding the management of joint ankylosis due to severely ossified patellar tendons.<\/jats:p><\/jats:sec><jats:sec><jats:title>Case Presentation<\/jats:title><jats:p>This is a case involving an extensively ossified patellar tendon after patellar and tibial tuberosity fracture fixation. Reconstruction of the patellar tendon was performed using ipsilateral semitendinosus and gracilis autografts. At the latest follow\u2010up of 12\u00a0months, the patient achieved knee flexion up to 120\u00b0 with a slight extension lag and resumed daily activities.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Autograft hamstring reconstruction of the patellar tendon is suitable for extensive heterotopic ossification of the patellar tendon, resulting in significant improvement in postoperative knee function. Similar patients may be referred for this reconstruction technique.<\/jats:p><\/jats:sec>","DOI":"10.1111\/os.13435","type":"journal-article","created":{"date-parts":[[2022,8,24]],"date-time":"2022-08-24T10:41:21Z","timestamp":1661337681000},"page":"3119-3124","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Patellar Tendon Reconstruction Using Autologous Hamstring Tendons for the Treatment of Extensive Patellar Tendon Ossification"],"prefix":"10.1111","volume":"14","author":[{"given":"Qian","family":"Liu","sequence":"first","affiliation":[{"name":"Department of Orthopaedics, The Second Xiangya Hospital Central South University  Changsha China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dezhou","family":"Tang","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics, The Second Xiangya Hospital Central South University  Changsha 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