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Full-Text Articles in Engineering
Stress Distribution At The Bone-Cement Interface Changes During Kyphoplasty Rehabilitation, Philip Purcell, Stephen Tiernan, Fiona Mcevoy, Magdalena Tyndyk, Seamus Morris
Stress Distribution At The Bone-Cement Interface Changes During Kyphoplasty Rehabilitation, Philip Purcell, Stephen Tiernan, Fiona Mcevoy, Magdalena Tyndyk, Seamus Morris
Conference Papers
Balloon Kyphoplasty uses an inflatable bone tamp and cement augmentation to repair vertebral compression fractures. A recent clinical study observed a 78% re-collapse rate in patients showing a radiolucent phenomenon at the bone-cement interface following Kyphoplasty. Two experimental studies showed significant height loss following Balloon Kyphoplasty under cyclical loads. The present study investigates the alteration in load angle corresponding to this height loss and its effect on load transfer to the bone-cement interface. A validated finite element model of a human thoracolumbar spine was segmented into a single L1 vertebral body and modified to replicate bilateral Balloon Kyphoplasty. Cement was …