Bone Fixation Device and Tension-Wire Method

Case ID:



This is a bone fixation device using new technology in order to help the healing of mandible fractures. The tension-wire method (TWM) is a method by which unstable mandible fractures can be reduced and fixated without the use of metal plates. Previous methods of fixation of bones, such as surgery and intermaxillary fixation, prove to be time intensive, invasive, and carry risks of malunion or malocclusion. Surgeons often have to adjust hard metal plates to fit the mandible, often through trial and error, costing anesthetic and operating room space to be in use far longer than they need to be. The tension-wire method simultaneously reduces and fixates bones, does not increase the complication rate of surgery, and is very affordable.



The bone fixation device developed with the tension-wire method consists of two arms forming an acute angle, with three places to be secured: two at distal portions of the respective arms and a third intermediate to the first two locations. The arms have a rigid retainer portion that serves to align bone fragments as well as a flexible portion that conforms to the bone without needing to be bent prior to fastening. This is best accomplished with the help of intermaxillary fixation in order to support mastication during the healing process.



  • TWM is much faster; reducing and fixation are simultaneous
  • Reduction of complications from surgery
  • Eliminates trial and error on the part of the surgeon
  • Patent:






Patent Information:
For Information, Contact:
Shannon Sheehan
Manager, Technology Commercialization
University of Nevada, Reno
Robert Wang
Mohamed Trabia