DLS 5.0 - The Biomechanical Effects of Dynamic Locking Screws

DLS 5.0 - The Biomechanical Effects of Dynamic Locking Screws

INTRODUCTION Indirect reduction of dia-/metaphyseal fractures with minimally invasive implant application bridges the fracture zone in order to protect the soft-tissue and blood supply. The goal of this fixation strategy is to allow stable motion at the fracture site to achieve indirect bone healing with callus formation. However, concerns have arisen that the high axial stiffness and eccentric...

Biomechanical comparison of axial load between cannulated locking screws and noncannulated cortical locking screws.

The goal of this study was to compare the biomechanical stability of cannulated locking screws and noncannulated cortical locking screws in a periarticular locking plate. Twelve fresh-frozen porcine tibias with a 1-cm gap created distal to the tibial plateau were used to simulate an unstable proximal tibial fracture. All specimens were fixed with a periarticular proximal lateral tibial locking ...

Stiffness comparison of REDAPT Locking Screws and non-locking screws utilized with the REDAPT variable angle locking feature

Biomechanical comparison of distal locking screws for distal tibia fracture intramedullary nailing

Background: Newer generation intramedullary (IM) tibial nails provide several distal interlocking screw options. The objectives were to determine: 1) if the new oblique interlocking option provides superior stability, 2) which screw orientation/ configuration is the most biomechanically stable, and 3) if three distal interlocking screws provide better stability. Methods: A preliminary experimen...

Biomechanical Comparison of Two Ludloff Metatarsal Osteotomy Fixations: Compression Screws vs. Locking Plate

BACKGROUND: Ludloff osteotomy fixation with compression screws has been widely used in the treatment of Hallux Valgus deformities [1, 2]. Generally six weeks of non-weight-bearing is required postoperatively to allow bone union. Besides the significant inconvenience due to non-weight-bearing, noncompliance may induce malunion, nonunion and loss of correction, indicating screw fixation is not st...