The effect of screw configuration of tubular bone plate on the biomechanics of oblique lateral malleolar fractures.

To investigate the biomechanical effects of varying physiological conditions and tubular plate screw configurations on the stability of lateral malleolar fractures. In this paper, different models were constructed for finite element analysis based on Computed Tomography (CT) data. The results showed that the biomechanical characteristics of the fixation method combining a tubular plate with 6 screws were optimal. The fixation methods showed significantly higher stability in dorsiflexion positions compared to neutral and plantarflexion positions. These findings provide valuable theoretical guidance for clinical selection of fixation methods for lateral malleolar fractures and rehabilitation training.