Abstract
Stainless steel wires with fiber-laser welding on lap joints are first proposed in this study to be used as cerclage wire joints for modern femur surgery, because of their potentially larger joint strength and less loosening failure than traditional joint devices. In this feasibility study, an experiment was set up to determine adequate parameters for the laser welding process in order to ensure that the wire joint of cerclage has good weld appearance, free oxidation, and suitable joint strength. A stainless steel wire 316L with a diameter of 1.6 mm, flare-welded on lap joint was used in the experiment as a specimen cerclage wire joint. Two major effective parameters were chosen for controlling a suitable fusion weld, including charge voltage and multiple frequencies of the laser irradiation. The adequate area of the laser parameters was determined from the experiment, including the ranges of charge voltage, multiple frequencies, and pulse width. The suitable welded lengths of specimens were also studied in the mechanical test to validate the joint strength. Suggested welded length has a better tensile strength than traditional cerclage joints. The paper concludes that the stainless wire joints with a fiber laser weld represents a promising alternative to traditional cerclage joint devices for modern femur surgery.
Highlights
Cerclage wire is a common procedure of orthopaedic surgeons for internal fixation
We propose to femur surgery, are bundled cerclage wire, twisted at the end apply theCerclage laser welding lapproblems joints andinused as cerclage joints for modern surgery
We Because welded joints have the potential of larger joint strength and less loosening failure than of propose to apply the laser welding on the lap joints and used as cerclage wire joints for modernthat femur traditional joint devices
Summary
It helps as a tool for arranging femoral bone fracture. This surgery method has an indication for the treatment of multiple bone fractures such as periprosthetic fracture, femoral fracture or patellar fracture, etc. Cerclage wiring technique helps to achieve stable reduction of femoral fractures which can be supplemented with a nail or a plate [2,3]. The treatments using cerclage wires with locking plate fixation for periprosthetic fractures of the femur promoted faster time to union, less complication, and fewer revisions [4]. The literature [5,6] presented that many cerclage-wiring technologies in difficult femoral fractures offered a minimally invasive reduction and fixation technique, low cost, and early holding
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