Submitted by PPG Medicina e Ci?ncias da Sa?de (medicina-pg@pucrs.br) on 2018-12-11T13:36:24Z No. of bitstreams: 1 EDUARDO_ANDRE_GOMES_KRIEGER.pdf: 1936090 bytes, checksum: 664d0dac12a0d4a16e41a647af134e1f (MD5) / Approved for entry into archive by Sheila Dias (sheila.dias@pucrs.br) on 2018-12-13T16:56:42Z (GMT) No. of bitstreams: 1 EDUARDO_ANDRE_GOMES_KRIEGER.pdf: 1936090 bytes, checksum: 664d0dac12a0d4a16e41a647af134e1f (MD5) / Made available in DSpace on 2018-12-13T17:07:12Z (GMT). No. of bitstreams: 1 EDUARDO_ANDRE_GOMES_KRIEGER.pdf: 1936090 bytes, checksum: 664d0dac12a0d4a16e41a647af134e1f (MD5) Previous issue date: 2018-08-10 / Introduction: Patellar chondropathy has an insidious onset, affecting patients with progressive, diffuse pain on the anterior aspect of the knee joint, and is one of the earliest signs of patellofemoral joint degenerative disease. Its etiology is still ill?defined, although risk factors such as female gender, increased body weight, and older age have been wellstablished in literature. There has been a prevalence of 40?60% under patellar cartilage macroscopic examination. The gold standard method for diagnosis is the arthroscopy; nonetheless, being a surgical procedure with high complication rates, its use is limited. With the advent of newer imaging methods, these modalities have been much more employed than diagnostic arthroscopy. Both conventional radiographs and CT scans provide indirect information on the condition of joint cartilage, whilst MRI provides more accurate data. There are no studies, however, highlighting the prevalence of patellar chondropathy in more recent imaging techniques such as the 3.0 Tesla MRI. Objective: To establish the prevalence of patellar chondropathy in 3.0 Tesla MRIs performed at Instituto do C?rebro da PUCRS between October 2016 and September 2017. Method: Data were collected by 3.0 Tesla MRIs of patients' knees obtained at Instituto do C?rebro da Pontif?cia Universidade Cat?lica do Rio Grande do Sul between September 2016 and August 2017, comprising a period of 12 months. Those MRIs were assessed by an experienced musculoskeletal radiologist, who confirmed the presence of patellar chondropathy and, when present, rated the finding into the four grades ascribed by the International Cartilage Repair Society. Results: A number of 291 patients were assessed during the period with 389 MRI scans. Of those patients, 308 (79.2%) were diagnosed with patellar chondropathy, whilst 81 (20.8%) were not. Chondropathy was more prevalent in the female gender, in subjects above 40 years of age, and in obese patients. When the results were weighed in ICRS classification, the milder grades (1 and 2) were seen in younger man (<30 years of age), while the more severe grades (3 and 4) were present in females, those above 40 years of age, and in obese patients. / Introdu??o: A condropatia patelar ? uma patologia de car?ter insidioso e que cursa com dor difusa na regi?o anterior do joelho, com caracter?stica progressiva, e ? um dos primeiros sinais de doen?a degenerativa na articula??o femoropatelar. A etiologia da doen?a ainda n?o est? bem definida, por?m os fatores de risco, como sexo feminino, alto peso corporal e indiv?duos mais velhos, est?o bem estabelecidos na literatura. Em estudos realizados atrav?s da macroscopia da cartilagem da patela, foi vista a preval?ncia entre 40?60%. O m?todo padr?o ouro para o diagn?stico ? a artroscopia, entretanto, por ser um procedimento cir?rgico, com elevados ?ndices de complica??o, seu uso ? restrito. Com o advento dos exames de imagem, estes passaram a ser mais utilizados do que a artroscopia diagn?stica. As radiografias convencionais e a tomografia computadorizada d?o informa??es indiretas sobre o estado das cartilagens articulares, j? a resson?ncia magn?tica pode prover mais dados. Todavia, n?o h? estudos que mostrem a preval?ncia da patologia em m?todos radiol?gicos mais recentes, como a resson?ncia magn?tica de 3.0 Tesla. Objetivo: Verificar a preval?ncia de condropatia patelar nos pacientes submetidos ao exame de resson?ncia magn?tica do joelho de alt?ssimo campo magn?tico (3.0 Tesla), realizada no Instituto do C?rebro da PUCRS no per?odo de outubro de 2016 a setembro de 2017. M?todo: Foram analisados os exames de resson?ncia magn?tica de joelho realizados no Instituto do C?rebro da Pontif?cia Universidade Cat?lica do Rio Grande do Sul em campo magn?tico de 3.0T, no per?odo de setembro de 2016 at? agosto de 2017, totalizando 12 meses. Estes foram analisados por radiologista com experi?ncia em interpreta??o de exames musculoesquel?ticos, que verificou a presen?a de condropatia patelar e, quando presente, classificou entre os quatro graus, de acordo com a classifica??o preconizada pela International Cartilage Repair Society. Resultados: Foram avaliados 291 pacientes durante o per?odo, com a realiza??o de 389 exames de resson?ncia nuclear magn?tica. Destes, 308 (79,2%) apresentavam condropatia patelar e apenas 81 (20,8%) n?o apresentavam. A patologia foi vista mais frequentemente nas mulheres, em indiv?duos acima de 40 anos e obesos. Quando classificada por graus, os mais leves (1 e 2) foram mais observados em homens e jovens (<30 anos) e os mais severos (3 e 4), no sexo feminino, acima de 40 anos e obesos.