Assessment of Hemi-Arthroplasty In An Anatomical Hip Simulator

Description

Roberto Leonardo Diaz presents research outcomes from the University of Leeds on the investigation of hemiarthroplasty, a surgical technique for managing femur fractures. The usage of this technique has surged since 2019, especially post-COVID, due to shorter surgery durations and lower complication rates, although the risk of cartilage deterioration remains a concern. The study aims to assess cartilage degradation following hemiarthroplasty simulation in natural porcine hips using an advanced anatomical hip simulator.



The research involved multiple groups comparing natural hip joints with hemiarthroplasty models where natural femoral heads were replaced with metal heads, assessing various sizes and their match with natural anatomy. Stress tests were conducted using an anatomical hip simulator, replicating human motion and applying axial loads. Observations focused on changes in cartilage quality, texture, and the condition of underlying bone. Results demonstrated that while natural cartilage showed no changes, oversized femoral heads led to visible wear and cartilage delamination, underscoring the importance of appropriate femoral head sizing in minimizing cartilage damage.

In conclusion, this research highlights the critical impact of femoral head sizing on preserving cartilage integrity during hemiarthroplasty, providing new insights that could guide surgical techniques to enhance patient outcomes.

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