{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,12,31]],"date-time":"2024-12-31T23:10:14Z","timestamp":1735686614912,"version":"3.32.0"},"reference-count":18,"publisher":"FapUNIFESP (SciELO)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Rev. Hosp. Clin."],"published-print":{"date-parts":[[2002,6]]},"abstract":"<jats:p>INTRODUCTION: Patellofemoral instability is a common knee disease. Its etiology is complex and variable, with many components making different contributions in each individual, resulting in several distinct clinical presentations. Our goal was to analyze the results of surgical treatment in our hospital over a period of 10 years. PATIENTS AND METHODS: We analyzed 55 knees of 47 patients who underwent surgery for patellofemoral instability and were classified into 2 main groups: proximal realignment and combined proximal and distal realignment. Three other groups were analyzed according to the duration of preoperative symptoms: less than 1 year (group I); 1 to 10 years (group II); and more than 10 years (group III). RESULTS: There were 62% good results overall, with 78% good results in groups I and II. Group III had 81% bad results, showing that a late diagnosis of advanced disease results in a poor prognosis. In addition to late diagnosis, bad results were usually associated with incorrect diagnosis or choice of surgical technique. There was no significant difference between isolated proximal realignment and combined proximal and distal realignment in groups I or II, but in group III, the combined technique yielded better results. DISCUSSION: Our results indicate that patellofemoral instability should be addressed in its early stages. Patients with long-lasting symptoms or more severe disease seem to achieve better results with combined techniques. CONCLUSION: Proximal and distal realignments produce better results than isolated proximal realignment in patients with joint degeneration or with greater duration of disease. The realignment surgery does not produce good results in patients with advanced disease.<\/jats:p>","DOI":"10.1590\/s0041-87812002000300004","type":"journal-article","created":{"date-parts":[[2005,4,27]],"date-time":"2005-04-27T13:22:18Z","timestamp":1114608138000},"page":"103-107","source":"Crossref","is-referenced-by-count":2,"title":["Appraisal of surgical treatment of 47 cases of patellofemoral instability"],"prefix":"10.1590","volume":"57","author":[{"given":"Roberto Freire da Mota e","family":"Albuquerque","sequence":"first","affiliation":[{"name":"University of S\u00e3o Paulo"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alexandre Pagotto","family":"Pacheco","sequence":"additional","affiliation":[{"name":"University of S\u00e3o Paulo"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Arnaldo Jos\u00e9","family":"Hernandez","sequence":"additional","affiliation":[{"name":"University of S\u00e3o Paulo"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marco Martins","family":"Amatuzzi","sequence":"additional","affiliation":[{"name":"University of S\u00e3o Paulo"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jos\u00e9 Ricardo","family":"P\u00e9cora","sequence":"additional","affiliation":[{"name":"University of S\u00e3o Paulo"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alexandre Estev\u00e3o Vamos","family":"Kokron","sequence":"additional","affiliation":[{"name":"University of S\u00e3o Paulo"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"530","reference":[{"key":"ref1","doi-asserted-by":"crossref","first-page":"61","DOI":"10.1097\/00003086-198911000-00011","article-title":"Insall proximal realignment for disorders of the patella","volume":"248","author":"ABRAHAM E","year":"1989","journal-title":"Clin Orthop","ISSN":"https:\/\/id.crossref.org\/issn\/0009-921X","issn-type":"print"},{"key":"ref2","series-title":"Surgery of the Knee","first-page":"241","volume-title":"Disorders of the patellofemoral joint","author":"AGLIETTI P","year":"1993","edition":"2"},{"key":"ref3","doi-asserted-by":"crossref","first-page":"93","DOI":"10.1177\/036354658801600201","article-title":"Evaluation of the results of extensor mechanism reconstruction","volume":"16","author":"CERULLO G","year":"1988","journal-title":"Am J Sports Med","ISSN":"https:\/\/id.crossref.org\/issn\/0363-5465","issn-type":"print"},{"key":"ref4","first-page":"27","article-title":"A long-term prospective study of the Hauser and Roux- Goldthwait procedures for recurrent patellar dislocation","volume":"144","author":"CHRISMAN O D","year":"1979","journal-title":"Clin 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Orthop","ISSN":"https:\/\/id.crossref.org\/issn\/0009-921X","issn-type":"print"},{"key":"ref8","doi-asserted-by":"crossref","first-page":"993","DOI":"10.2106\/00004623-198567070-00002","article-title":"Recurrent dislocation of the patella treated by the modified Roux Goldthwait procedure: a prospective study of forty-seven knees","volume":"67","author":"FONDREN FB","year":"1985","journal-title":"J Bone Joint Surg [Am]"},{"key":"ref9","doi-asserted-by":"crossref","first-page":"283","DOI":"10.1016\/S0030-5898(20)30407-7","article-title":"After failure of conservative treatment for painful patellofemoral malalignment: lateral release or realignment?","volume":"17(2)","author":"FULKERSON JP","year":"1986","journal-title":"Orthop Clin North Am","ISSN":"https:\/\/id.crossref.org\/issn\/0030-5898","issn-type":"print"},{"key":"ref10","doi-asserted-by":"crossref","first-page":"736","DOI":"10.2106\/00004623-197759060-00004","article-title":"Patellar-tendon transfer by the slot-block method for recurrent subluxation and dislocation of the patella","volume":"59","author":"GRANA WA","year":"1977","journal-title":"J Bone Joint Surg[Am]"},{"key":"ref11","first-page":"36","article-title":"Proximal and distal reconstruction of the extensor mechanism for patellar subluxation","volume":"144","author":"HUGHSTON JC","year":"1979","journal-title":"Clin Orthop","ISSN":"https:\/\/id.crossref.org\/issn\/0009-921X","issn-type":"print"},{"key":"ref12","first-page":"225","article-title":"Patellar pain and incongruence: II","volume":"176","author":"INSALL JN","year":"1983","journal-title":"Clinical application. Clin Orthop"},{"key":"ref13","first-page":"63","article-title":"Proximal \"tube\" realignment of the patella for chondromalacia patellae","volume":"144","author":"INSALL JN","year":"1979","journal-title":"Clin Orthop","ISSN":"https:\/\/id.crossref.org\/issn\/0009-921X","issn-type":"print"},{"key":"ref14","series-title":"Operative orthopaedics","first-page":"1334","volume-title":"Recurrent dislocations","author":"PHILLIPS BB","year":"1998","edition":"9"},{"key":"ref15","first-page":"2","article-title":"Patellofemoral disorders: editorial comment","volume":"144","author":"PICKETT JC","year":"1979","journal-title":"Clin Orthop","ISSN":"https:\/\/id.crossref.org\/issn\/0009-921X","issn-type":"print"},{"key":"ref16","first-page":"201","article-title":"Recurrent dislocation and subluxations of the patella","volume":"227","author":"REIGLER HF","year":"1988","journal-title":"Clin Orthop","ISSN":"https:\/\/id.crossref.org\/issn\/0009-921X","issn-type":"print"},{"key":"ref17","first-page":"4","article-title":"The classic. Recurrent dislocation of the patella: operative treatment","volume":"144","author":"ROUX C","year":"1979","journal-title":"Clin Orthop","ISSN":"https:\/\/id.crossref.org\/issn\/0009-921X","issn-type":"print"},{"key":"ref18","series-title":"Pediatric Orthopaedics","first-page":"1551","volume-title":"Recurrent subluxation or dislocation of the patella","author":"TACHDJIAN MO","year":"1990","edition":"2"}],"container-title":["Revista do Hospital das Cl\u00ednicas"],"original-title":[],"link":[{"URL":"http:\/\/www.scielo.br\/pdf\/rhc\/v57n3\/a04v57n3.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,12,31]],"date-time":"2024-12-31T22:38:27Z","timestamp":1735684707000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.scielo.br\/scielo.php?script=sci_arttext&pid=S0041-87812002000300004&lng=en&tlng=en"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2002,6]]},"references-count":18,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2002,6]]}},"alternative-id":["S0041-87812002000300004"],"URL":"https:\/\/doi.org\/10.1590\/s0041-87812002000300004","relation":{},"ISSN":["0041-8781"],"issn-type":[{"type":"electronic","value":"0041-8781"}],"subject":[],"published":{"date-parts":[[2002,6]]}}}