Surgical system for minimally invasive repair of sacro-iliac luxations/fractures in dogs and cats


Executive Summary


Injuries to the pelvis of dogs and cats often result in damage to the Sacro-iliac or SI joint. Traditionally, SI joint damage is repaired using a classical invasive operation, increasing morbidity for the patient as well as high levels of radiation exposure for the surgical team.  Recently, there has been an interest in the utilization of minimally invasive surgical procedures. Patient outcomes will be improved with the adoption of a robust minimally invasive operation; additionally surgeon exposure to xrays will be decreased. 


Description of Technology


MSU researchers have developed a novel surgical device and kit useful for implementing a minimally invasive approach to the repair of sacro-iliac (SI) joint damage in dogs and cats. This system utilizes two posable arms for both anchoring the patient in place and holding a targeting device to deliver the screw to the pelvis. Preliminary data indicates that use of this comprehensive system speeds up the SI surgery, from 1-1.5 hours to ~15 minutes, and additionally, protects the surgical team from excessive radiation exposure.


Key Benefits

  • Complete surgical set
  • Faster- significant decrease in operating room time
  • Recovery- Patient recovery is improved with less chance for morbidity, infection, pain
  • Improves radiation safety- Benefits of less exposure accrue to both the patient and surgical team.
  • Better targeting- the system includes a novel targeting device which promotes better placement of screws, even by less experienced surgeons.



  • Small animal SI luxation-fracture surgery
  • Small Animal MIO
  • Other small animal orthopedic surgeries


Patent Status: 


Patent Pending


Licensing Rights Available


Full licensing rights available


Inventors: Loic Dejardin


Tech ID: TEC2015-0113



Patent Information:


For Information, Contact:

Randy Ramharack
Technology Manager
Michigan State University
Loic Dejardin