Mechanical analysis of femoral neck fracture fixation in synthetic bone
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: fi...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Ortopedia e Traumatologia
2014-01-01
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| Series: | Acta Ortopédica Brasileira |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-78522014000300155&tlng=en |
| _version_ | 1818891743052955648 |
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| author | Anderson Freitas Bruna Alves Soares Azevedo Roberto Rodrigues de Souza Hélio Ismael da Costa Rafael Almeida Maciel Diogo Ranier de Macedo Souto |
| author_facet | Anderson Freitas Bruna Alves Soares Azevedo Roberto Rodrigues de Souza Hélio Ismael da Costa Rafael Almeida Maciel Diogo Ranier de Macedo Souto |
| author_sort | Anderson Freitas |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-19T17:45:39Z |
| format | Article |
| id | doaj.art-d04d041ef4104350a4cb606729d6512c |
| institution | Directory Open Access Journal |
| issn | 1413-7852 |
| language | English |
| last_indexed | 2024-12-19T17:45:39Z |
| publishDate | 2014-01-01 |
| publisher | Sociedade Brasileira de Ortopedia e Traumatologia |
| record_format | Article |
| series | Acta Ortopédica Brasileira |
| spelling | doaj.art-d04d041ef4104350a4cb606729d6512c2022-12-21T20:12:05ZengSociedade Brasileira de Ortopedia e TraumatologiaActa Ortopédica Brasileira1413-78522014-01-0122315515810.1590/1413-78522014220300914Mechanical analysis of femoral neck fracture fixation in synthetic boneAnderson FreitasBruna Alves Soares AzevedoRoberto Rodrigues de SouzaHélio Ismael da CostaRafael Almeida MacielDiogo Ranier de Macedo SoutoOBJECTIVE: 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-78522014000300155&tlng=enFemoral neck fracturesFracture fixation, internalBiomechanical phenomenas |
| spellingShingle | Anderson Freitas Bruna Alves Soares Azevedo Roberto Rodrigues de Souza Hélio Ismael da Costa Rafael Almeida Maciel Diogo Ranier de Macedo Souto Mechanical analysis of femoral neck fracture fixation in synthetic bone Acta Ortopédica Brasileira Femoral neck fractures Fracture fixation, internal Biomechanical phenomenas |
| title | Mechanical analysis of femoral neck fracture fixation in synthetic bone |
| title_full | Mechanical analysis of femoral neck fracture fixation in synthetic bone |
| title_fullStr | Mechanical analysis of femoral neck fracture fixation in synthetic bone |
| title_full_unstemmed | Mechanical analysis of femoral neck fracture fixation in synthetic bone |
| title_short | Mechanical analysis of femoral neck fracture fixation in synthetic bone |
| title_sort | mechanical analysis of femoral neck fracture fixation in synthetic bone |
| topic | Femoral neck fractures Fracture fixation, internal Biomechanical phenomenas |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-78522014000300155&tlng=en |
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