{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T14:36:52Z","timestamp":1740148612078,"version":"3.37.3"},"reference-count":15,"publisher":"Georg Thieme Verlag KG","issue":"05","license":[{"start":{"date-parts":[[2020,9,25]],"date-time":"2020-09-25T00:00:00Z","timestamp":1600992000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Rev Bras Ortop (Sao Paulo)"],"published-print":{"date-parts":[[2021,10]]},"abstract":"<jats:title>Resumo<\/jats:title><jats:p>\n          Objetivo\u2003Avaliar, por meio de ensaio biomec\u00e2nico, a carga m\u00e1xima, a energia, e o deslocamento necess\u00e1rios para a ocorr\u00eancia de fratura em modelos sint\u00e9ticos de f\u00eamures ap\u00f3s a retirada de parafusos acanulados e a realiza\u00e7\u00e3o de t\u00e9cnica de refor\u00e7o com polimetilmetacrilato (PMMA) em diferentes posi\u00e7\u00f5es combinadas.<\/jats:p><jats:p>\n          M\u00e9todos\u2003Foram utilizados 25 ossos sint\u00e9ticos divididos em 4 grupos: o grupo controle (GC), com 10 modelos sem perfura\u00e7\u00e3o, e os grupos teste (A, B e C), com 5 modelos cada. Os grupos de teste foram fixados com parafusos acanulados pela t\u00e9cnica de Asnis, e tiveram a s\u00edntese removida e o preenchimento de dois dos orif\u00edcios formados por t\u00e9cnica de refor\u00e7o com PMMA. A an\u00e1lise biomec\u00e2nica foi realizada simulando queda sobre o grande troc\u00e2nter utilizando m\u00e1quina servo-hidr\u00e1ulica.<\/jats:p><jats:p>\n          Resultados\u2003Todos os corpos de prova do GC e dos grupos A, B e C apresentaram fratura baso-cervical do colo femoral, exceto um modelo do grupo B, que apresentou fratura longitudinal. Foi utilizada uma m\u00e9dia de 5,4\u2009mL de PMMA no refor\u00e7o dos grupos com preenchimento. Segundo a an\u00e1lise de vari\u00e2ncia (analysis of variance, ANOVA) e o teste de compara\u00e7\u00f5es m\u00faltiplas de Tukey, no n\u00edvel de 5%, observou-se que o GC apresentou diferen\u00e7a significativa em rela\u00e7\u00e3o aos grupos A e C nos seguintes par\u00e2metros: carga m\u00e1xima, energia at\u00e9 a fratura, e deslocamento.<\/jats:p><jats:p>\n          Conclus\u00e3o\u2003Observou-se que os grupos A e C, quando comparados ao GC, apresentaram diferen\u00e7as significativas na observa\u00e7\u00e3o do deslocamento, da carga m\u00e1xima, e da energia at\u00e9 a fratura.<\/jats:p>","DOI":"10.1055\/s-0040-1714221","type":"journal-article","created":{"date-parts":[[2020,9,25]],"date-time":"2020-09-25T23:26:11Z","timestamp":1601076371000},"page":"641-646","source":"Crossref","is-referenced-by-count":0,"title":["An\u00e1lise mec\u00e2nica ap\u00f3s refor\u00e7o femoral proximal com polimetilmetacrilato em orif\u00edcios duplos alternados"],"prefix":"10.1055","volume":"56","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6555-8193","authenticated-orcid":false,"given":"Anderson","family":"Freitas","sequence":"additional","affiliation":[{"name":"Instituto de Pesquisa e Ensino, Hospital Ortop\u00e9dico e Medicina Especializada (IPE-HOME-DF), Bras\u00edlia, DF, Brasil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3796-9651","authenticated-orcid":false,"given":"Mariana de Medeiros","family":"Lessa","sequence":"additional","affiliation":[{"name":"Servi\u00e7o de Ortopedia e Traumatologia, Hospital Regional do Gama (HRG-DF), Bras\u00edlia, DF, Brasil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5649-8122","authenticated-orcid":false,"given":"Saulo Pereira","family":"de Oliveira","sequence":"additional","affiliation":[{"name":"Servi\u00e7o de Ortopedia e Traumatologia, Hospital Regional do Gama (HRG-DF), Bras\u00edlia, DF, Brasil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7417-6891","authenticated-orcid":false,"given":"Pedro F\u00e9lix Pereira de","family":"Oliveira","sequence":"additional","affiliation":[{"name":"Programa de Resid\u00eancia em Ortopedia e Traumatologia, Hospital Estadual de Sapopemba (HESAP), S\u00e3o Paulo, SP, Brasil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4429-312X","authenticated-orcid":false,"given":"Vincenzo","family":"Giordano","sequence":"additional","affiliation":[{"name":"Coordenador do Programa de Resid\u00eancia M\u00e9dica em Ortopedia e Traumatologia, Hospital Municipal Miguel Couto (HMMC-RJ), Rio de Janeiro, RJ, Brasil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3119-2362","authenticated-orcid":false,"given":"Ant\u00f4nio Carlos","family":"Shimano","sequence":"additional","affiliation":[{"name":"Departamento de Biomec\u00e2nica, Medicina e Reabilita\u00e7\u00e3o do Aparelho Locomotor, Faculdade de Medicina de Ribeir\u00e3o Preto, Universidade de S\u00e3o Paulo (FMRP\/USP), Ribeir\u00e3o Preto, SP, Brasil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"194","published-online":{"date-parts":[[2020,9,25]]},"reference":[{"issue":"01","key":"ref1","doi-asserted-by":"crossref","first-page":"22","DOI":"10.7322\/abcshs.v44i1.1116","article-title":"Significado e considera\u00e7\u00f5es sobre a osteoporose por mulheres com e sem diagn\u00f3stico da doen\u00e7a","volume":"44","author":"E A Souza J\u00fanior","year":"2019","journal-title":"ABCS Health Sci"},{"issue":"05","key":"ref2","doi-asserted-by":"crossref","first-page":"407","DOI":"10.1007\/PL00004148","article-title":"World-wide projections for hip fracture","volume":"7","author":"B Gullberg","year":"1997","journal-title":"Osteoporos Int"},{"key":"ref3","first-page":"4987831","article-title":"The Analysis of Biomechanical Properties of Proximal Femur after Implant Removal","volume":"2016","author":"J H Yang","year":"2016","journal-title":"Appl Bionics Biomech"},{"issue":"10","key":"ref4","doi-asserted-by":"crossref","first-page":"489","DOI":"10.5694\/j.1326-5377.1999.tb127852.x","article-title":"How best to fix a broken hip","volume":"170","author":"L M March","year":"1999","journal-title":"Med J Aust"},{"issue":"S 05","key":"ref5","doi-asserted-by":"crossref","first-page":"S3","DOI":"10.1016\/j.injury.2015.08.006","article-title":"Common complications in hip fracture surgery: Tips\/tricks and solutions to avoid them","volume":"46","author":"T H Tosounidis","year":"2015","journal-title":"Injury"},{"issue":"04","key":"ref6","doi-asserted-by":"crossref","first-page":"410","DOI":"10.1016\/j.clinbiomech.2010.12.002","article-title":"Should extramedullary fixations for hip fractures be removed after bone union?","volume":"26","author":"S Eberle","year":"2011","journal-title":"Clin Biomech (Bristol, Avon)"},{"issue":"02","key":"ref7","first-page":"165","article-title":"Osteosynthesis of femoral neck fractures: two or three screws?","volume":"47","author":"R Basile","year":"2015","journal-title":"Rev Bras Ortop"},{"issue":"12","key":"ref8","doi-asserted-by":"crossref","first-page":"1519","DOI":"10.1016\/S0021-9290(01)00157-9","article-title":"Femoral neck fracture after removal of the standard gamma interlocking nail: a cadaveric study to determine factors influencing the biomechanical properties of the proximal femur","volume":"34","author":"C Kukla","year":"2001","journal-title":"J Biomech"},{"issue":"08","key":"ref9","doi-asserted-by":"crossref","first-page":"778","DOI":"10.1016\/j.injury.2006.01.019","article-title":"Finite element study of the proximal femur with retained trochanteric gamma nail and after removal of nail","volume":"37","author":"B Mahaisavariya","year":"2006","journal-title":"Injury"},{"issue":"04","key":"ref10","doi-asserted-by":"crossref","first-page":"416","DOI":"10.1055\/s-0039-1693046","article-title":"Giordano Neto V, Godinho PF, Shimano AC. Ensaio biomec\u00e2nico ap\u00f3s retirada de parafusos canulados do f\u00eamur proximal (an\u00e1lise in vitro)","volume":"54","author":"F Anderson","year":"2019","journal-title":"Rev Bras Ortop"},{"issue":"07","key":"ref11","doi-asserted-by":"crossref","first-page":"755","DOI":"10.1016\/j.medengphy.2006.08.006","article-title":"Femoroplasty--augmentation of the proximal femur with a composite bone cement--feasibility, biomechanical properties and osteosynthesis potential","volume":"29","author":"J Beckmann","year":"2007","journal-title":"Med Eng Phys"},{"issue":"01","key":"ref12","doi-asserted-by":"crossref","first-page":"136","DOI":"10.1177\/0885328212443274","article-title":"Limited V-shaped cement augmentation of the proximal femur to prevent secondary hip fractures","volume":"28","author":"L Fliri","year":"2013","journal-title":"J Biomater Appl"},{"issue":"01","key":"ref13","doi-asserted-by":"crossref","first-page":"59","DOI":"10.1016\/j.jbiomech.2014.11.002","article-title":"Subject-specific planning of femoroplasty: an experimental verification study","volume":"48","author":"E Basafa","year":"2015","journal-title":"J Biomech"},{"issue":"05","key":"ref14","doi-asserted-by":"crossref","first-page":"295","DOI":"10.1097\/BOT.0b013e3180616ba5","article-title":"Calcium phosphate cement augmentation of the femoral neck defect created after dynamic hip screw removal","volume":"21","author":"E J Strauss","year":"2007","journal-title":"J Orthop Trauma"},{"issue":"05","key":"ref15","doi-asserted-by":"crossref","first-page":"506","DOI":"10.1016\/j.clinbiomech.2004.01.014","article-title":"Femoroplasty-augmentation of mechanical properties in the osteoporotic proximal femur: a biomechanical investigation of PMMA reinforcement in cadaver bones","volume":"19","author":"P F Heini","year":"2004","journal-title":"Clin Biomech (Bristol, Avon)"}],"container-title":["Revista Brasileira de Ortopedia"],"original-title":[],"language":"pt","link":[{"URL":"http:\/\/www.thieme-connect.de\/products\/ejournals\/pdf\/10.1055\/s-0040-1714221.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,10,28]],"date-time":"2021-10-28T22:46:45Z","timestamp":1635461205000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.thieme-connect.de\/DOI\/DOI?10.1055\/s-0040-1714221"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,9,25]]},"references-count":15,"journal-issue":{"issue":"05","published-online":{"date-parts":[[2021,10,28]]},"published-print":{"date-parts":[[2021,10]]}},"URL":"https:\/\/doi.org\/10.1055\/s-0040-1714221","archive":["Portico","CLOCKSS"],"relation":{},"ISSN":["0102-3616","1982-4378"],"issn-type":[{"type":"print","value":"0102-3616"},{"type":"electronic","value":"1982-4378"}],"subject":[],"published":{"date-parts":[[2020,9,25]]}}}