Bending and fracture of the femoral component in cemented total hip replacement
| Autor: | P.R. Jones, D.W.L. Hukins, Karen Davies, Martyn L. Porter, Christopher J. Taylor, Kevin Hardinge |
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| Rok vydání: | 1992 |
| Předmět: |
medicine.medical_specialty
medicine.medical_treatment Radiography Biophysics Total hip replacement Fracture group Prosthesis Fixation (surgical) Image Interpretation Computer-Assisted medicine Humans Femur Femoral component Aged Orthodontics Femur Neck business.industry Middle Aged Programming method Biomechanical Phenomena Prosthesis Failure Surgery Orthopedic surgery Hip Prosthesis business Femoral Fractures |
| Zdroj: | Journal of Biomedical Engineering. 14:9-15 |
| ISSN: | 0141-5425 |
| DOI: | 10.1016/0141-5425(92)90029-k |
| Popis: | A computer method was used to make 41 measurements on the geometry of insertion of the femoral component in 200 Charnley total hip replacements. Surgery had been performed at least 12 years before, giving results which were classified as: success (90); fracture (56); or loose (54), according to rigid selection criteria. Fracture was associated with heavier patients in which there was poor proximal fixation of the femoral component but adequate distal fixation. Stems with a medial disposition proximally were more common in the fracture group than in the successful or loose groups. Sequential measurements of bending and subsequent fracture were made on the follow-up radiographs of 24 of the 200 cases (6 fracture and 18 successful). These measurements allowed bending to be detected at an earlier stage than by simple inspection of the radiographs. |
| Databáze: | OpenAIRE |
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