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      DHS e OPS: estudo comparativo da falência de osteossíntese Translated title: DHS and OPS: comparative study of failed internal fixation

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          Abstract

          OBJETIVO: O presente estudo visa analisar prospectivamente dois tipos de osteossíntese (Dynamic Hip Screw (DHS), Orlando Pinto Souza (OPS)), utilizados para o tratamento de fraturas do fêmur proximal, quanto à ocorrência de "cut out". MATERIAIS E MÉTODOS: Foram realizadas no período de julho a dezembro de 2003, 52 cirurgias para tratamento de fraturas transtrocanterianas, 38 destas foram alvo do presente estudo. A técnica a ser utilizada foi escolhida por sorteio no ato operatório. RESULTADOS: No grupo onde fora implantado OPS não observamos a presença de "cut out" e no grupo do DHS obtivemos duas falências da síntese, uma em um paciente de sexo feminino portadora de fratura tipo Tronzo IV e outra em paciente do sexo masculino, portador de fratura Tronzo III, ambas classificadas como instáveis após a redução em mesa ortopédica. A média do TAD obtida foi de 31 mm para o grupo do DHS e de 56,63 mm para o OPS. CONCLUSÃO: Concluímos que quando Comparamos ambas as osteossínteses quanto à incidência de "cut out" e sua relação com o índice TAD preconizado por Baumgartner, no OPS o "cut out" não esteve dependente desta medida e que outros fatores como valgização e redução foram prioritários enquanto no DHS o índice TAD deve ser buscado.

          Translated abstract

          OBJECTIVE: This prospective study compared the occurrence of cut out in two types of osteosyntheses (Dynamic Hip Screw (DHS), Orlando Pinto Souza (OPS)), used for treating proximal femur fractures. Materials and METHODS: From July to December of 2003, we operated 52 hip fractures, but only 38 cases were included in this study consistently with the inclusion criteria. The surgical technique was randomly determined at the moment of the procedure. RESULTS: In the OPS group, we didn't observe the occurrence of cut out, and, in the DHS group, we found 10% of synthesis failure: one in a female with a Tronzo IV fracture and other in a male patient with a Tronzo III fracture, both regarded as unstable after reduction on orthopaedic table. The mean Tip Apex Distance to OPS pin was 56.63 mm, and to DHS, 31 mm. CONCLUSION: We concluded that when we compared both osteosynthesis the incidence of cut out and its correlation with TAD as recommended by Baumgartner, in OPS the cut out wasn't dependent of TAD and other factors like valgusing reduction were most important, in DHS the TAD recommended by Baumgartner must be followed.

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          Most cited references53

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          Cutting-out of the dynamic hip screw related to its position.

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            Medications and multiple falls in elderly people: the St Louis OASIS study.

            The purpose of this study was to identify associations between the use of commonly taken medications and groups of medications and the risk of falls in elderly people living in the community. A stratified random sample of 1358 persons aged 65 years and over was selected from the 15,000 members of an educational organization for functionally independent, community-dwelling elderly people in St Louis, Missouri. Twenty-seven per cent of subjects reported at least one fall in the past year and 8% reported two or more falls. After adjusting for potential confounders (including age, sex, relevant medical conditions, health status, cognitive impairment, use of alcohol, depression and use of other medications), the following medications were found to be important risk factors for multiple falls: diazepam [odds ratio (OR): 3.7, 95% confidence interval (CI): 1.5-9.3], diltiazem (OR: 1.8, 95% CI: 0.8-4.1), diuretics (OR: 1.8, 95% CI: 1.2-2.8) and laxatives (OR: 2.1, 95% CI: 1.0-4.5). We conclude that caution is needed before prescribing diuretics and psychotropics, especially diazepam, for elderly people. The safety of diltiazem in this age group should be assessed further.
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              Failure of intertrochanteric fracture fixation with a dynamic hip screw in relation to pre-operative fracture stability and osteoporosis

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                aob
                Acta Ortopédica Brasileira
                Acta ortop. bras.
                Sociedade Brasileira de Ortopedia e Traumatologia (São Paulo )
                1809-4406
                2009
                : 17
                : 2
                : 35-39
                Article
                S1413-78522009000200006
                10.1590/S1413-78522009000200006
                c77bb042-7630-4309-867b-e4e3f7a621fe

                http://creativecommons.org/licenses/by/4.0/

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                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=1413-7852&lng=en
                Categories
                ORTHOPEDICS

                Orthopedics
                Hip fractures,Fractures in elderly,Ostheossyntesys failure,Proximal fêmur fractures,Ostheossynthesys release,Fraturas do quadril,Fraturas do Fêmur Proximal,Falência de Osteossíntese,Fraturas no Idoso,Soltura de Osteossíntese

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