{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,1]],"date-time":"2026-11-01T02:22:50Z","timestamp":1793499770356,"version":"4.5.0"},"reference-count":33,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2013,2,1]],"date-time":"2013-02-01T00:00:00Z","timestamp":1359676800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2013,2,1]],"date-time":"2013-02-01T00:00:00Z","timestamp":1359676800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"},{"start":{"date-parts":[[2013,2,1]],"date-time":"2013-02-01T00:00:00Z","timestamp":1359676800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2013,2,1]],"date-time":"2013-02-01T00:00:00Z","timestamp":1359676800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"content-domain":{"domain":["arthroscopyjournal.org","clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Arthroscopy"],"published-print":{"date-parts":[[2013,2]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>The aim of this study was to evaluate the survival of microfractures in patients with degenerative osteoarthritic knees and to analyze the factors affecting length of time before total knee arthroplasty (TKA) is performed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This study reviewed 134 knees in 124 patients in whom microfracture was performed and for whom a minimum of 10 years of follow\u2010up data were available. Mean follow\u2010up was 11.2 years. The survival rate was evaluated. Failure was defined as the need for TKA. Another definition of failure was substantial symptoms in a patient whose pain score during follow\u2010up was lower than the preoperative pain score or &lt;60. We evaluated factors affecting survival, including size of the cartilage defect and severity of the preoperative varus deformity. The mechanical axis percentage (MA%) was defined as the percentage by which the mechanical axis bisected the total width of the tibia.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The survival rate was 88.8% at 5 years and 67.9% at 10 years. Fifty\u2010one patients proceeded to TKA a mean of 6.8 years after microfracture, and 6 knees were categorized as clinical failures. Age, gender, body mass index (BMI), and presence of meniscus lesions did not affect the survival of microfractures. Survival of microfractures in patients with a cartilage defect on the medial femoral condyle &lt;2 cm\n                      <jats:sup>2<\/jats:sup>\n                      in size was better than that of microfractures in patients with larger defects. Survival of microfractures in patients with MA% &gt;25% was better than that of patients with MA% &lt;25%.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Among 134 knees, 51 knees (38.1%) proceeded to TKA a mean of 6.8 years after microfracture in this study, and 6 knees were categorized as clinical failures. The survival rate was 88.8% at 5 years and decreased over time to 67.9% at 10 years. When considering microfracture, surgeons must consider factors affecting survival, such as size of the cartilage defect and severity of the preoperative varus deformity.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence<\/jats:title>\n                    <jats:p>Level IV, therapeutic case series.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1016\/j.arthro.2012.09.006","type":"journal-article","created":{"date-parts":[[2013,1,28]],"date-time":"2013-01-28T18:11:03Z","timestamp":1359396663000},"page":"244-250","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":54,"title":["Survival Analysis of Microfracture in the Osteoarthritic Knee\u2014Minimum 10\u2010Year Follow\u2010up"],"prefix":"10.1002","volume":"29","author":[{"given":"Dae Kyung","family":"Bae","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery College of Medicine Kyung Hee University Seoul Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sang Jun","family":"Song","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery College of Medicine Kyung Hee University Seoul Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kyoung Ho","family":"Yoon","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery College of Medicine Kyung Hee University Seoul Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dong Beom","family":"Heo","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery College of Medicine Kyung Hee University Seoul Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tae Jin","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery College of Medicine Kyung Hee University Seoul Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2013,2,1]]},"reference":[{"key":"e_1_2_2_2_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-009-1028-1"},{"key":"e_1_2_2_3_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546510363433"},{"key":"e_1_2_2_4_1","first-page":"419","article-title":"Microfracture: Indications, technique, and results","volume":"56","author":"Williams R.J.","year":"2007","journal-title":"Instr Course Lect"},{"key":"e_1_2_2_5_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546511425651"},{"key":"e_1_2_2_6_1","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.I.01284"},{"key":"e_1_2_2_7_1","doi-asserted-by":"publisher","DOI":"10.1055\/s-0030-1248031"},{"key":"e_1_2_2_8_1","doi-asserted-by":"publisher","DOI":"10.1055\/s-0030-1247141"},{"key":"e_1_2_2_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2006.01.015"},{"key":"e_1_2_2_10_1","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-200710000-00002"},{"key":"e_1_2_2_11_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00264-011-1364-x"},{"key":"e_1_2_2_12_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-009-0955-1"},{"key":"e_1_2_2_13_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546509350296"},{"key":"e_1_2_2_14_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546508328414"},{"key":"e_1_2_2_15_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-004-0499-3"},{"key":"e_1_2_2_16_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546506288240"},{"key":"e_1_2_2_17_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546511420688"},{"key":"e_1_2_2_18_1","doi-asserted-by":"publisher","DOI":"10.1053\/jars.2003.50112"},{"key":"e_1_2_2_19_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546509360403"},{"key":"e_1_2_2_20_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546511422220"},{"key":"e_1_2_2_21_1","doi-asserted-by":"publisher","DOI":"10.2214\/AJR.09.3556"},{"key":"e_1_2_2_22_1","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.43B4.752"},{"key":"e_1_2_2_23_1","doi-asserted-by":"crossref","first-page":"26","DOI":"10.1007\/PL00003545","article-title":"The microfracture technic in the management of complete cartilage defects in the knee joint","volume":"28","author":"Steadman J.R.","year":"1999","journal-title":"Orthopade"},{"key":"e_1_2_2_24_1","first-page":"83","article-title":"The microfracture technique in the treatment of full\u2010thickness chondral lesions of the knee in National Football League players","volume":"16","author":"Steadman J.R.","year":"2003","journal-title":"J\u00a0Knee Surg"},{"key":"e_1_2_2_25_1","doi-asserted-by":"publisher","DOI":"10.4055\/jkoa.2008.43.6.752"},{"key":"e_1_2_2_26_1","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.91B9.22058"},{"key":"e_1_2_2_27_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546505274578"},{"key":"e_1_2_2_28_1","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-200403000-00001"},{"key":"e_1_2_2_29_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2006.06.020"},{"key":"e_1_2_2_30_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-009-0974-y"},{"key":"e_1_2_2_31_1","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-200509000-00002"},{"key":"e_1_2_2_32_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546504263234"},{"key":"e_1_2_2_33_1","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-200101000-00008"},{"key":"e_1_2_2_34_1","doi-asserted-by":"publisher","DOI":"10.1186\/1749-799X-4-13"}],"container-title":["Arthroscopy"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0749806312017409?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0749806312017409?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/arthroscopyjournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1016\/j.arthro.2012.09.006","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/arthroscopyjournals.onlinelibrary.wiley.com\/doi\/full-xml\/10.1016\/j.arthro.2012.09.006","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/arthroscopyjournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1016\/j.arthro.2012.09.006","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,3,15]],"date-time":"2026-03-15T09:22:11Z","timestamp":1773566531000},"score":1,"resource":{"primary":{"URL":"https:\/\/arthroscopyjournals.onlinelibrary.wiley.com\/doi\/10.1016\/j.arthro.2012.09.006"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013,2]]},"references-count":33,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2013,2]]}},"alternative-id":["10.1016\/j.arthro.2012.09.006"],"URL":"https:\/\/doi.org\/10.1016\/j.arthro.2012.09.006","archive":["Portico"],"relation":{},"ISSN":["0749-8063","1526-3231"],"issn-type":[{"value":"0749-8063","type":"print"},{"value":"1526-3231","type":"electronic"}],"subject":[],"published":{"date-parts":[[2013,2]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Survival Analysis of Microfracture in the Osteoarthritic Knee\u2014Minimum 10-Year Follow-up","name":"articletitle","label":"Article Title"},{"value":"Arthroscopy: The Journal of Arthroscopic & Related Surgery","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.arthro.2012.09.006","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"Copyright \u00a9 2013 Arthroscopy Association of North America. Published by Elsevier Inc. All rights reserved.","name":"copyright","label":"Copyright"}]}}