{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,15]],"date-time":"2026-01-15T00:55:18Z","timestamp":1768438518422,"version":"3.49.0"},"reference-count":0,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[1999,9,1]],"date-time":"1999-09-01T00:00:00Z","timestamp":936144000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[1999,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Prospectively, 119 patients were pursued clinically and by follow\u2010up\u2010arthroscopy for the occurrence of a \u201ccyclops syndrome\u201d after ACL reconstruction with a patellar tendon autograft, augmented by LAD. Twenty\u2010one patients showed nodular formations. Ten of these (group 1) developed early clinical evidence of a \u201ccyclops syndrome\u201d with a mean extension deficit of 19\u00b0 before follow\u2010up\u2010arthroscopy, on average 5.9\u00a0months after the index operation. The nodular formations found and excised during d\u00e9bridement had a hard consistency. Histomorphological undecalcified microtome section evaluation of six specimens revealed fibrocartilagineous tissue with active bone formation in the center. The other 11 patients showed no clinical symptoms (group 2). A similar but soft nodulous scar formation was detected at follow\u2010up\u2010arthroscopy, on average 9.5\u00a0months after the index operation. Histomorphologically these so\u2010called \u201ccyclopoid\u201d formations were only built\u2010up fibrocartilagineous islands surrounded by granulation tissue. Neither remnants of tendon graft fibers nor old bone particles were found in specimens of either group. It can be concluded that both the hard cyclops and the soft \u201ccyclopoid\u201d are de novo scar formations.<\/jats:p>","DOI":"10.1007\/s001670050165","type":"journal-article","created":{"date-parts":[[2002,8,25]],"date-time":"2002-08-25T03:30:30Z","timestamp":1030246230000},"page":"284-289","source":"Crossref","is-referenced-by-count":57,"title":["Cyclops and cyclopoid formation after anterior cruciate ligament reconstruction: clinical and histomorphological differences"],"prefix":"10.1002","volume":"7","author":[{"given":"T.","family":"Muellner","sequence":"first","affiliation":[{"name":"<!--<label>1<\/label>--> University Clinic of Traumatology University of Vienna Medical School W\u00e4hringer G\u00fcrtel 18\u201320 A\u20101090 Vienna Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R.","family":"Kdolsky","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> University Clinic of Traumatology University of Vienna Medical School W\u00e4hringer G\u00fcrtel 18\u201320 A\u20101090 Vienna Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"K.","family":"Gro\u00dfschmidt","sequence":"additional","affiliation":[{"name":"<!--<label>2<\/label>--> Department of Bone and Biomaterials Research Histological\u2010Embryological Institute University of Vienna Vienna Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R.","family":"Schabus","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> University Clinic of Traumatology University of Vienna Medical School W\u00e4hringer G\u00fcrtel 18\u201320 A\u20101090 Vienna Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"O.","family":"Kwasny","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> University Clinic of Traumatology University of Vienna Medical School W\u00e4hringer G\u00fcrtel 18\u201320 A\u20101090 Vienna Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"H. Plenk","family":"Jr","sequence":"additional","affiliation":[{"name":"<!--<label>2<\/label>--> Department of Bone and Biomaterials Research Histological\u2010Embryological Institute University of Vienna Vienna Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[1999,9]]},"container-title":["Knee Surgery, Sports Traumatology, Arthroscopy"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1007\/s001670050165.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/link.springer.com\/article\/10.1007\/s001670050165\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/esskajournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1007\/s001670050165","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,19]],"date-time":"2025-10-19T13:07:26Z","timestamp":1760879246000},"score":1,"resource":{"primary":{"URL":"https:\/\/esskajournals.onlinelibrary.wiley.com\/doi\/10.1007\/s001670050165"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1999,9]]},"references-count":0,"journal-issue":{"issue":"5","published-print":{"date-parts":[[1999,9]]}},"alternative-id":["10.1007\/s001670050165"],"URL":"https:\/\/doi.org\/10.1007\/s001670050165","archive":["Portico"],"relation":{},"ISSN":["0942-2056","1433-7347"],"issn-type":[{"value":"0942-2056","type":"print"},{"value":"1433-7347","type":"electronic"}],"subject":[],"published":{"date-parts":[[1999,9]]}}}