Biomechanical analysis of pedicle screw density in posterior spine instrumentation

Conclusions: Decreasing pedicle screw density in biomechanical testing of nondeformed porcine thoracic spines does not result in any significant changes to ROM when comparing constructs with greater than 60% density. The addition of crosslinks may confer added stability to AR in patients with decreased density constructs.
Source: Current Orthopaedic Practice - Category: Orthopaedics Tags: Special Focus: Resident Research Award Source Type: research