{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T21:15:04Z","timestamp":1785618904118,"version":"3.56.0"},"reference-count":0,"publisher":"British Editorial Society of Bone & Joint Surgery","issue":"1","license":[{"start":{"date-parts":[[1999,1,1]],"date-time":"1999-01-01T00:00:00Z","timestamp":915148800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/online.boneandjoint.org.uk\/TDM"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["The Journal of Bone and Joint Surgery. British volume"],"published-print":{"date-parts":[[1999,1]]},"abstract":"<jats:p> Two men, aged 21 and 50 years, were seen with ossification of the patellar tendon after injury to the knee in adolescence. They complained of pain and had patella alta. Large bony masses were excised from below the affected patellae. The patellar tendon was then reconstructed using a Leeds-Keio ligament. The results at six and ten years, respectively, were good, with neither patient having pain or an extension lag. <\/jats:p>","DOI":"10.1302\/0301-620x.81b1.0810034","type":"journal-article","created":{"date-parts":[[2018,2,21]],"date-time":"2018-02-21T11:51:26Z","timestamp":1519213886000},"page":"34-36","source":"Crossref","is-referenced-by-count":28,"title":["Extensive post-traumatic ossification of the patellar tendon"],"prefix":"10.1302","volume":"81-B","author":[{"given":"H.","family":"Matsumoto","sequence":"first","affiliation":[{"name":"School of Medicine, Keio University, Department of Orthopaedic Surgery, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M.","family":"Kawakubo","sequence":"additional","affiliation":[{"name":"School of Medicine, Keio University, Department of Orthopaedic Surgery, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T.","family":"Otani","sequence":"additional","affiliation":[{"name":"School of Medicine, Keio University, Department of Orthopaedic Surgery, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"K.","family":"Fujikawa","sequence":"additional","affiliation":[{"name":"National Defence Medical College, Department of Orthopaedic Surgery, 3-2 Namiki, Tokorozawa-city, Saitama 359-8513, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"42","container-title":["The Journal of Bone and Joint Surgery. British volume"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/online.boneandjoint.org.uk\/doi\/pdf\/10.1302\/0301-620X.81B1.0810034","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/online.boneandjoint.org.uk\/doi\/pdf\/10.1302\/0301-620X.81B1.0810034","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,8,16]],"date-time":"2021-08-16T19:22:21Z","timestamp":1629141741000},"score":1,"resource":{"primary":{"URL":"https:\/\/online.boneandjoint.org.uk\/doi\/10.1302\/0301-620X.81B1.0810034"}},"subtitle":["A REPORT OF TWO CASES"],"short-title":[],"issued":{"date-parts":[[1999,1]]},"references-count":0,"aliases":["10.1302\/0301-620x.81b1.9074","10.1302\/0301-620x.81b1.9074"],"journal-issue":{"issue":"1","published-print":{"date-parts":[[1999,1]]}},"alternative-id":["10.1302\/0301-620X.81B1.0810034"],"URL":"https:\/\/doi.org\/10.1302\/0301-620x.81b1.0810034","relation":{},"ISSN":["0301-620X","2044-5377"],"issn-type":[{"value":"0301-620X","type":"print"},{"value":"2044-5377","type":"electronic"}],"subject":[],"published":{"date-parts":[[1999,1]]}}}