Publications by authors named "Lee W Etchels"
Article Synopsis
- After hip replacement, instability at the joint can cause harmful edge loading between the femoral head and the acetabular liner, which could lead to fracturing of the polyethylene liner.
- The study aimed to assess the impact of inertia and elastoplastic material properties on predicting kinematics and plastic strain accumulation, revealing that a more complex model was necessary for accurate predictions.
- Factors such as cup orientation and design changes can influence plastic strain accumulation, suggesting that future liner designs should utilize dynamic elastoplastic models to enhance performance under edge loading conditions.
Current clinical data suggest a higher failure rate for internal fixation in Vancouver type B1 periprosthetic femoral fracture (PFF) fixations compared to long stem revision in B2 fractures. The aim of this study was to compare the biomechanical performance of several fixations in the aforementioned fractures. Finite element models of B1 and B2 fixations, previously corroborated against in vitro experimental models, were compared.
View Article and Find Full Text PDFPeriprosthetic femoral fracture (PFF) fixation failures are still occurring. The effect of fracture stability and loading on PFF fixation has not been investigated and this is crucial for optimum management of PFF. Models of stable and unstable PPFs were developed and used to quantify the effect of fracture stability and loading in a single locking plate fixation.
View Article and Find Full Text PDF