Trent Guess, James Cook

Principal Investigators

Trent Guess, PhD

Department of Physical Therapy and Orthopaedic Surgery

James Cook, DVM, PhD

Department of Orthopaedic Surgery

Mizzou Knee Arthrometer Testing System (MKATS): An Easy-to-Use Tool for Accurate Screening, Diagnosis and Treatment Monitoring for Knee Ligament Injuries

Knee injuries are common, with more than 750,000 ligament injuries and 500,000 anterior cruciate ligament ruptures occurring each year in the United States. When a ligament is torn, knee stability and function become abnormal. Precisely determining the direction and magnitude of the instability (laxity) is vitally important for making a complete and accurate injury diagnosis, determining optimal treatment options and monitoring recovery to determine when it is safe to return to daily activities. While devices that measure knee laxity have been commercially available for decades, the Mizzou Knee Arthrometer Testing System (MKATS) can potentially address limitations of existing devices by delivering cost-effective quantitative measurement of knee laxity. That would be valuable to orthopaedic surgeons, physical therapists and athletic trainers. Additionally, knee laxity is a known risk factor for ACL injury. Assessing this risk with the MKATS would help millions of amateur, collegiate and professional athletes by providing critical decision-making information to physical therapy clinics and athletic training facilities.