{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,3]],"date-time":"2026-11-03T22:12:51Z","timestamp":1793743971046,"version":"4.6.1"},"reference-count":14,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[2010,4,1]],"date-time":"2010-04-01T00:00:00Z","timestamp":1270080000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Orthop Surg (Hong Kong)"],"published-print":{"date-parts":[[2010,4]]},"abstract":"<jats:p>Tophaceous pseudogout in the knee joint is rare. We report an 82-year-old man who presented with a one-year history of pain and swelling of the right knee joint. Treatment with non-steroidal anti-inflammatory drugs and aspiration of the joint effusion had not been effective. The mass continued to enlarge, and the patient had difficulty walking. Radiographs and computed tomography showed meniscal calcification with an abnormal soft-tissue mass surrounded by calcification. After excision, massive calcified deposits were seen both inside and on the surface of the tophaceous pseudogout. The deposits showed birefringence under polarised light, suggestive of calcium pyrophosphate dihydrate crystals. At the 2-year follow-up, the patient could walk independently without knee pain or swelling, although his range of knee motion was slightly limited due to joint contracture that developed before surgery.<\/jats:p>","DOI":"10.1177\/230949901001800127","type":"journal-article","created":{"date-parts":[[2016,10,4]],"date-time":"2016-10-04T17:14:58Z","timestamp":1475601298000},"page":"118-121","source":"Crossref","is-referenced-by-count":13,"title":["Tophaceous Pseudogout in the Knee Joint Mimicking a Soft-Tissue Tumour: A Case Report"],"prefix":"10.1177","volume":"18","author":[{"given":"Hiroaki","family":"Kato","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, Mie University, Mie, Japan"},{"name":"Department of Orthopedic Surgery, Odai Kosei Hospital, Mie, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kazuto","family":"Nishimoto","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Mie University, Mie, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomoaki","family":"Yoshikawa","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Odai Kosei Hospital, Mie, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katsuyuki","family":"Kusuzaki","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Mie University, Mie, Japan"},{"name":"Department of Orthopedic Surgery, Odai Kosei Hospital, Mie, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Akihiro","family":"Sudo","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Mie University, Mie, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2010,4,1]]},"reference":[{"key":"bibr1-230949901001800127","doi-asserted-by":"publisher","DOI":"10.1002\/dc.2050"},{"key":"bibr2-230949901001800127","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-002-0339-2"},{"key":"bibr3-230949901001800127","doi-asserted-by":"publisher","DOI":"10.1016\/0046-8177(95)90161-2"},{"key":"bibr4-230949901001800127","first-page":"1457","volume":"56","author":"Hiroaki M","year":"2005","journal-title":"Seikeigeka"},{"key":"bibr5-230949901001800127","first-page":"91","volume":"51","author":"Hideki M","year":"2008","journal-title":"Chubu Nihon Seikeigeka Saigaigeka Gakkai Zassi"},{"key":"bibr6-230949901001800127","first-page":"499","volume":"197","author":"Yamakawa K","year":"2001","journal-title":"Pathol Res Pract"},{"key":"bibr7-230949901001800127","doi-asserted-by":"publisher","DOI":"10.2214\/ajr.138.1.162"},{"key":"bibr8-230949901001800127","doi-asserted-by":"publisher","DOI":"10.1227\/00006123-199508000-00023"},{"key":"bibr9-230949901001800127","unstructured":"Weiss SW, Goldblum JR. Enzinger and Weiss's soft tissue tumors. 5th ed. 2008:523,1017\u20138,1040\u20131,1052\u20133,1163."},{"key":"bibr10-230949901001800127","doi-asserted-by":"publisher","DOI":"10.3109\/03009739109179267"},{"key":"bibr11-230949901001800127","doi-asserted-by":"publisher","DOI":"10.1016\/S1079-2104(05)80220-3"},{"key":"bibr12-230949901001800127","doi-asserted-by":"publisher","DOI":"10.1097\/00007632-199601150-00017"},{"key":"bibr13-230949901001800127","doi-asserted-by":"publisher","DOI":"10.1227\/01.NEU.0000068861.47199.A8"},{"key":"bibr14-230949901001800127","doi-asserted-by":"publisher","DOI":"10.1097\/01.bsd.0000211278.83647.9e"}],"container-title":["Journal of Orthopaedic Surgery"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/230949901001800127","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/230949901001800127","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T00:16:17Z","timestamp":1777594577000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/230949901001800127"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2010,4]]},"references-count":14,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2010,4]]}},"alternative-id":["10.1177\/230949901001800127"],"URL":"https:\/\/doi.org\/10.1177\/230949901001800127","relation":{},"ISSN":["1022-5536","2309-4990"],"issn-type":[{"value":"1022-5536","type":"print"},{"value":"2309-4990","type":"electronic"}],"subject":[],"published":{"date-parts":[[2010,4]]}}}