To browse Academia. Due to its popularity of intramedullary nails IMN high success rate, newer design titanium IMN system have been introduced to replace stainless steel system.
However the stability provided by the titanium IMN may not be adequate, there by influencing the union rate. We aimed to compare the results of both IMN systems via prospective clinical study and biomechanical testing using RSA. Biomechanical study This study was done in an experimental set-up which consisted of a physically simulated femoral shaft fractures models fixed with a stainless steel Russell Taylor or Titanium Trigen IM nailing system.
Two common fracture configurations with stimulated weight bearing conditions were used and the axis of fragment movements recorded. Clinical study The data on two groups of patients were collected as part of a prospective cohort study. Details of the implant, such as size of nail, cross screw lengths, screw thickness, etc. Patients were followed up for a minimum o The form and function of the musculo-skeletal system is closely related to the forces acting in its components.
Significant forces are present in the long bones, but their magnitudes have so far only been estimated from mathematical models.
Fracture fixation by means of metal implants provides an opportunity to measure the implant-born forces and to estimate the long bone forces before healing occurs. The load changes during fracture healing may provide additional information. Therefore, a telemetrized, interlocking femoral nail for wireless transmission of forces and moments acting across the fracture site was developed. The design was based on the geometry and material of a 16mm AO nail with a circular, closed cross-section allowing full protection of the electronic circuits from the body fluids.
