{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,21]],"date-time":"2025-10-21T04:40:39Z","timestamp":1761021639099,"version":"build-2065373602"},"reference-count":21,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[1995,9,1]],"date-time":"1995-09-01T00:00:00Z","timestamp":809913600000},"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":[[1995,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The histological findings of the patellar cartilage were compared between cases of chondromalacia, which occurs predominantly in young persons (22 patients, average age 19.8 years) and cases of osteoarthritis, which is common among the elderly (21 patients, average age 65.4 years). The histological findings of cartilage in the chondromalacia were characterized by increased density and vigorous fibrous metaplasia of chondrocytes. These findings may be considered to represent a reactive change in the chondrocyte. Cartilage degeneration in osteoarthritis, by contrast, is regressive and presents a clearly different histological picture from that of chondromalacia patellae. We conclude that chondromalacia does not easily lead to osteoarthritis. On the other hand, the cartilage was characteristically softened, as observed by gross inspection, and showed rarefaction of the cartilage matrix. It should be noted that the change was not observed in aging, but showed a pattern of cartilage degeneration peculiar to young patients with chondromalacia patellae.<\/jats:p>","DOI":"10.1007\/bf01565477","type":"journal-article","created":{"date-parts":[[2005,4,27]],"date-time":"2005-04-27T14:23:11Z","timestamp":1114611791000},"page":"167-172","source":"Crossref","is-referenced-by-count":11,"title":["Histological comparison of patellar cartilage degeneration between chondromalacia in youth and osteoarthritis in aging"],"prefix":"10.1002","volume":"3","author":[{"given":"Y.","family":"Mori","sequence":"first","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedic Surgery Showa University Fujigaoka Hospita I\u201030 Fujigaoka, Aoba\u2010ku Yokohama 227 Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.","family":"Kubo","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedic Surgery Showa University Fujigaoka Hospita I\u201030 Fujigaoka, Aoba\u2010ku Yokohama 227 Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"H.","family":"Okumo","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedic Surgery Showa University Fujigaoka Hospita I\u201030 Fujigaoka, Aoba\u2010ku Yokohama 227 Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Y.","family":"Kuroki","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedic Surgery Showa University Fujigaoka Hospita I\u201030 Fujigaoka, Aoba\u2010ku Yokohama 227 Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[1995,9]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1136\/ard.33.1.39"},{"key":"e_1_2_1_3_2","first-page":"79","volume-title":"Basic science and arthroscopy","author":"Merchant AC","year":"1990"},{"volume-title":"Disorders of the patellofemoral joint","year":"1990","author":"Fulkerson JP","key":"e_1_2_1_4_2"},{"volume-title":"Disorders of the patellofemoral joint","year":"1977","author":"Ficat RP","key":"e_1_2_1_5_2"},{"key":"e_1_2_1_6_2","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.58B3.956244"},{"key":"e_1_2_1_7_2","first-page":"339","article-title":"Biochemical study on collagen from the unstable patella joint capsules","volume":"9","author":"Hirakawa M","year":"1988","journal-title":"J Tokyo Knee Society"},{"key":"e_1_2_1_8_2","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-197153030-00009"},{"key":"e_1_2_1_9_2","doi-asserted-by":"publisher","DOI":"10.1001\/jama.1933.02740230015002"},{"key":"e_1_2_1_10_2","first-page":"149","article-title":"Chondromalacia posttraumatica patella","volume":"63","author":"Aleman O","year":"1928","journal-title":"Acta Chir Scand"},{"key":"e_1_2_1_11_2","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.67B5.4055879"},{"key":"e_1_2_1_12_2","first-page":"507","article-title":"Chondromalacia patellae. 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