{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,5]],"date-time":"2026-06-05T16:34:56Z","timestamp":1780677296068,"version":"3.54.1"},"reference-count":22,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2010,10,7]],"date-time":"2010-10-07T00:00:00Z","timestamp":1286409600000},"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":[[2011,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>The clinical role of patellofemoral (PF) osteoarthrosis (OA) in the outcome after PF stabilizing surgery is poorly understood. The study hypothesis was that PF cartilage lesions and OA are associated with a poor long\u2010term outcome after PF stabilizing surgery.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>The study cohort included thirty\u2010seven patients who underwent PF stabilizing surgery by traditional nonanatomic procedures and were evaluated a minimum of 10 years (range 10\u201321) after surgery. PF OA was assessed by magnetic resonance (MR) images and plain radiographs obtained at follow\u2010up. Median patient age at follow\u2010up was 33 years (29\u201343).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>At the final follow\u2010up, PF full\u2010thickness cartilage lesions were observed on MR images in 29 (78%) patients. Only 46% of the patients reported satisfaction at follow\u2010up, and dissatisfaction was associated with PF OA (full\u2010thickness articular cartilage loss on MR images; <jats:italic>P<\/jats:italic> = 0.022). Especially high incidence, 89%, of medial patellar facet cartilage lesions were found among the patients dissatisfied with the result (16\/18 patients) (n.s.). Eight (22%) of the 37 patients reported recurrent patellar instability episodes at follow\u2010up. Median Kujala score was 83 points (range 55\u201398).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Patellofemoral OA is a significant long\u2010term risk of nonanatomic surgery for patellar instability and has a greater impact on subjective outcome than residual instability more than 10 years after surgery.<\/jats:p><\/jats:sec>","DOI":"10.1007\/s00167-010-1285-z","type":"journal-article","created":{"date-parts":[[2010,10,6]],"date-time":"2010-10-06T07:53:56Z","timestamp":1286351636000},"page":"230-235","source":"Crossref","is-referenced-by-count":57,"title":["Patellofemoral osteoarthritis in patients with operative treatment for patellar dislocation: a magnetic resonance\u2010based analysis"],"prefix":"10.1002","volume":"19","author":[{"given":"Petri J.","family":"Sillanp\u00e4\u00e4","sequence":"first","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedic Surgery Tampere University Hospital Teiskontie 35 33521 Tampere Finland"},{"name":"<!--<label>2<\/label>--> Research Department Centre for Military Medicine Helsinki Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ville M.","family":"Mattila","sequence":"additional","affiliation":[{"name":"<!--<label>2<\/label>--> Research Department Centre for Military Medicine Helsinki Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tuomo","family":"Visuri","sequence":"additional","affiliation":[{"name":"<!--<label>2<\/label>--> Research Department Centre for Military Medicine Helsinki Finland"},{"name":"<!--<label>3<\/label>--> Department of Orthopaedic Surgery Central Military Hospital Helsinki Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Heikki","family":"M\u00e4enp\u00e4\u00e4","sequence":"additional","affiliation":[{"name":"<!--<label>1<\/label>--> Department of Orthopaedic Surgery Tampere University Hospital Teiskontie 35 33521 Tampere Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Harri","family":"Pihlajam\u00e4ki","sequence":"additional","affiliation":[{"name":"<!--<label>2<\/label>--> Research Department Centre for Military Medicine Helsinki Finland"},{"name":"<!--<label>3<\/label>--> Department of Orthopaedic Surgery Central Military Hospital Helsinki Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2010,10,7]]},"reference":[{"key":"e_1_2_7_2_2","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-200300002-00008"},{"key":"e_1_2_7_3_2","first-page":"317","article-title":"Patella infera. 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