Biomechanical comparison of five cannulated screw fixation strategies for young vertical femoral neck fractures.

ABSTRACT: Vertical femoral neck fractures in patients younger than 65 years of age often require hip-conserving surgeries. However, traditional fixation strategies using three parallel cannulated screws often fail in such patients due to an unfavorable biomechanical environment. This study compared different cannulated screw fixation techniques in patients via patient-specific finite element analysis with linear tetrahedral (C3D4) elements. Forty vertical femoral neck fracture models were created based on computed tomography images obtained from eight healthy participants. Five different fixation strategies: alpha, buttress, rhomboid, inverted triangle, and triangle were assessed in walking status. Biomechanical parameters including stiffness, interfragmentary motion in two directions (detachment an

SUBMITTER: Jiang D 

PROVIDER: S-EPMC8451753 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature