Mechanical analysis of femoral neck fracture fixation in synthetic bone
Acta ortop. bras
;
22(3): 155-158, 2014. tab, graf
Artigo
em Inglês
| LILACS
| ID: lil-716246
ABSTRACT
OBJECTIVE:
To analyze statistically results obtained between biomechanical assays on fixation of femoral neck fracture type Pauwels III, on synthetic bone, using 7.5 mm non parallel cannulated screws and control group.METHODS:
Ten synthetic bones from a national brand were used. Test group fixation of 70(o) tilt femoral neck osteotomy was performed using three 7.5 mm non parallel cannulated screws. We analyzed the resistance of this fixation with 5 mm of displacement, and rotational deviation (phase 1) and with 10 mm offset (phase 2). Control group the models were tested in their integrity until the femoral neck fracture occurred.RESULTS:
the values of the test group in phase 1, in sample 1-5 had a mean of 517N and SD = 96N. Rotational deviations showed a mean of 3.79° e SD = 2. 03°. In phase 2, mean was 649N and SD = 94N. The values of the maximum load in the control group were 1544N, 1110N, 1359N, 1194N, 1437N; respectively. Statistical analysis between the groups showed a statistically significant lower value in the test group.CONCLUSION:
the analysis of mechanical resistance between the groups has determined statistically significant value for the test group. Level of Evidence III, Case-control Study. .
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Tipo de estudo:
Estudo observacional
Idioma:
Inglês
Revista:
Acta ortop. bras
Assunto da revista:
Ortopedia
Ano de publicação:
2014
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Hospital Ortopédico e Medicina Especializada (HOME)/BR
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