A NOVEL TECHNIQUE FOR POST IMPLANT DIFFICULT SKIN CLOSURE

The management of grossly displaced fractures sometimes needs immediate reduction to relieve pressure on neurovascular structures and simultaneous stabilization with plates & screws. Surgeons frequently encounter difculty in the nal stage of surgery which is skin closure due to signicant swelling. Delayed secondary closure increases the risk of exposing the fracture site & implant to infection. Also counselling relatives postop for second surgery and for additional expenditure is difcult. Here we present our experience of managing difcult closures using multiple tension relieving small skin incisions to relieve compartmental pressure and catostrophic wound complications. Here we have shown an example of difcult closure on a complex displaced distal radius fracture post xation.

Finite-Time Simultaneous Stabilization of a Set of Nonlinear Singular Systems

This study addresses the problems of finite-time simultaneous stabilization for two nonlinear singular systems and more than two nonlinear singular systems. First, we design a suitable output feedback controller and combine the two nonlinear singular systems to generate an augmented system by using an augmented technique. Based on a sufficient condition of the augmented system impulse-free, an important result, that is, the augmented system is finite-time stabilization is presented. Then, the finite-time stabilization problem of more than two singular systems is investigated by dividing the N systems into two sets. Finally, a numerical example is provided to demonstrate the effectiveness of the proposed finite-time stabilization controller for two nonlinear singular systems.