Development and Validation of Finite Element Analysis Model (FEM) of Craniovertebral Junction: Experimental Biomechanical Cadaveric Study.

Study Design: Experimental Cadaveric Biomechanical Study.

Objective: To establish an experimental procedure in cadavers to estimate joint stiffness/stability at craniovertebral junction (CVJ) region with various implant systems and to develop/validate an indigenous cost effective 3D-FEM (three-dimensional finite element model) of CVJ region.

Summary Of Background Data: Finite element analysis (FEM) tools can provide estimates of internal stress and strain in response to external loading of various implant systems used in CVJ fixations.

Is PFNA-II a better implant for stable intertrochanteric fractures in elderly population ? A prospective randomized study.

Introduction: Intertrochanteric fracture is one of the most common and severe fractures occurring in the elderly population. We conducted a randomized prospective study to compare the functional and radiological outcome of Proximal Femoral Nail anti-rotation-Asia(PFNA-II) and Dynamic Hip screw (DHS) used in fixation of stable (AO type 31 A1-A2.1) intertrochanteric fractures in elderly.