Assesment [sic] of cement augmentation and screw trajectory on pedicle screw fixation in osteoporotic vertebrae
Abstract
Internal fixation of osteoporotic spines for fracture or deformity is currently difficult, owing to failure at the bone- implant interface. This study aims to ascertain whether pedicle screw trajectory and pedicle cortex retention can independently significantly affect fixation strength in osteoporotic vertebrae.
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