{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,24]],"date-time":"2026-01-24T07:47:59Z","timestamp":1769240879038,"version":"3.49.0"},"reference-count":50,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2005,2,18]],"date-time":"2005-02-18T00:00:00Z","timestamp":1108684800000},"content-version":"vor","delay-in-days":6076,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal Orthopaedic Research"],"published-print":{"date-parts":[[1988,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>We measured patellofemoral contact areas and pressures using pressure sensitive film in ten human cadaver knees exhibiting degenerative lesions of patellar cartilage. We studied a flexion range from 20\u00b0 to 90\u00b0 and compared contact pressures before and after capsular reconstructive procedures. With an intact, normal capsule. localized lesions of grade I\u2013II exhibited a 50% reduction in pressure (from 3.4 \u00b1 0.7 MPa to 1.6 \u00b1 0.9 MPa) directly over the lesion. Grade III\u2013IV lesions exhibited a loss of contact pressure greater than 90%. This reduction in pressure appears to result from a loss of stiffness in the low grade cartilage lesions and from a loss of cartilage thickness in higher grade lesions. Highly localized peak pressures were also observed on the normal cartilage bordering the lesions. Capsular reconstructive procedures (medial plication, lateral release, and bilateral release) did not result in consistent pressure reductions or in the creation of more uniform pressure distribution. In particular, lateral capsular release, a popular surgical procedure, resulted in no change in three knees and four different pressure patterns in the other seven knees.<\/jats:p>","DOI":"10.1002\/jor.1100060405","type":"journal-article","created":{"date-parts":[[2005,2,24]],"date-time":"2005-02-24T12:50:00Z","timestamp":1109249400000},"page":"499-508","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":84,"title":["Contact pressures in chondromalacia patellae and the effects of capsular reconstructive procedures"],"prefix":"10.1002","volume":"6","author":[{"given":"Helmut H.","family":"Huberti","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wilson C.","family":"Hayes","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2005,2,18]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"crossref","first-page":"205","DOI":"10.1302\/0301-620X.60B2.659466","article-title":"Is chondromalacia patellae a separate clinical entity?","volume":"60","author":"Abernethy PJ","year":"1978","journal-title":"J Bone Joint Surg"},{"key":"e_1_2_1_3_2","doi-asserted-by":"publisher","DOI":"10.1115\/1.3138410"},{"key":"e_1_2_1_4_2","doi-asserted-by":"publisher","DOI":"10.1002\/jor.1100040401"},{"key":"e_1_2_1_5_2","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-198264010-00013"},{"key":"e_1_2_1_6_2","first-page":"1","article-title":"Chondromalacia patellae und femoro\u2010patellare Arthrose Aetiologie, Klinik und Therapie","volume":"11","author":"Bandi W","year":"1972","journal-title":"Helv Chir Acta Suppl"},{"key":"e_1_2_1_7_2","first-page":"26","volume-title":"The Knee","author":"Bandi W","year":"1978"},{"key":"e_1_2_1_8_2","doi-asserted-by":"publisher","DOI":"10.1002\/ar.1091720102"},{"key":"e_1_2_1_9_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF02790956"},{"key":"e_1_2_1_10_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF00415542"},{"key":"e_1_2_1_11_2","first-page":"103","article-title":"Surface morphology and topography of patello\u2010femoral cartilage fibrillation in Liverpool necropsies","volume":"116","author":"Emery IH","year":"1973","journal-title":"J Anat"},{"key":"e_1_2_1_12_2","doi-asserted-by":"crossref","first-page":"159","DOI":"10.2106\/00004623-197961020-00001","article-title":"Relief of patellofemoral contact stress by anterior displacement of the tibial tubercle","volume":"61","author":"Ferguson AB","year":"1979","journal-title":"J Bone Joint Surg"},{"key":"e_1_2_1_13_2","first-page":"74","article-title":"Spongialization: A new treatment for diseased patellae","volume":"144","author":"Ficat RP","year":"1979","journal-title":"Clin Orthop"},{"key":"e_1_2_1_14_2","volume-title":"Disorders of the patello\u2010femoral joint","author":"Ficat RP","year":"1977"},{"key":"e_1_2_1_15_2","first-page":"55","article-title":"Chondromalacia patellae: A system of classification","volume":"144","author":"Ficat RP","year":"1979","journal-title":"Clin Orthop"},{"key":"e_1_2_1_16_2","first-page":"707","article-title":"Traumatische Chondropathie der Patella: Ein selbstaendiges Krankheitbild","volume":"53","author":"Fruend H","year":"1926","journal-title":"Zentral Chir"},{"key":"e_1_2_1_17_2","first-page":"43","volume-title":"Chondromalacia of the patella","author":"Goodfellow J","year":"1981"},{"key":"e_1_2_1_18_2","doi-asserted-by":"crossref","first-page":"175","DOI":"10.1302\/0301-620X.49B1.175","article-title":"The pattern of aging of the articular cartilage of the elbow joint","volume":"49","author":"Goodfellow JW","year":"1967","journal-title":"J Bone Joint Surg"},{"key":"e_1_2_1_19_2","doi-asserted-by":"publisher","DOI":"10.1055\/s-2008-1053543"},{"key":"e_1_2_1_20_2","doi-asserted-by":"publisher","DOI":"10.3109\/17453677208991252"},{"key":"e_1_2_1_21_2","doi-asserted-by":"crossref","first-page":"207","DOI":"10.1097\/00003086-198105000-00030","article-title":"Subcutaneous lateral retinacular release for chondromalacia patella. 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