Healing of tibial comminuted fractures by the meaning of an innovative intramedullary nail

Abstract

In this paper, an innovative design of prosthesis, conceived to heal the comminuted fractures of long bones has been investigated. The proposed prosthesis consists of two shell valves hinged to each other by a central pin and bearing slits along the surface in such a way as to guarantee the exchange of body fluids and at the same time ensure the structural stability of the bone. Two screws then hold the two valves together. The operative technique for the introduction of this type of prosthesis for the decomposed fracture of long bones consists in the incision of the fracture site, introduction of the open shell prosthesis with reduction of the fracture and composition of the bone fragments, closure by means of fixing screws of the prosthesis shell, stitching open wound flaps. A complete numerical FE model of an implanted femur was analyzed, by considering a vertical load of 980 N. Analyses confirmed results, in terms of mechanical performances, comparable with the others traditional systems of prosthesis.

Tibio talar contact stress: An experimental and numerical study

“…Different studies investigated the stress strain distribution on long bones, femur or tibia, taking into account the presence of different kind of prosthesis. [19][20][21][22][23] The problem in those cases is represented by the variability of results in a special way around the contact zone area. For this reason, a comparison between numerical and experimental results can be very useful.…”

Preparation and Characterization of an Injectable and Photo-Responsive Chitosan Methacrylate/Graphene Oxide Hydrogel: Potential Applications in Bone Tissue Adhesion and Repair

“…Comminuted fractures are complex bone lesions that involve the break or splinter of a bone into multiple fragments, usually after being subjected to loads far superior to those it can resist [ 1 ]. These injuries require a surgical treatment to allow the bone to properly heal and regain its ability to sustain strain, which is generally based on the reduction of the fractured surfaces, coupling of processed fragments, and stabilization by fixation implants or adhesive materials [ 2 , 3 , 4 , 5 , 6 ].…”

Statistical investigation about spinal clinical asymmetry in a school population

“…Further research will be carried on to investigate the stress shielding on spinal column in case of deformities. For this purpose Many FE models [29][30][31][32][33][34][35][36][37][38][39][40]…”