Cadaveric Testing of a Novel Sensor for Non-Destructive Load Balancing in Total Knee Replacements (TKRs)
Authors: Al-Nasser, S., Noroozi, S. and Harvey, A.
Journal: 20th International Conference on Condition Monitoring and Asset Management, CM 2024
DOI: 10.1784/cm2024.5b3
Abstract:The use of an intraoperative load sensor during a Total Knee Replacement (TKR) can greatly improve functional outcomes for patients and reduce the probability of an early revision surgery. This sensor would become a method of non-destructive testing to inform surgeons in real time on the expected functional outcome of the knee postoperatively. The cadaveric testing of a novel intraoperative load sensor aimed to provide insight into the use of the sensor from the perspective of an experienced orthopaedic surgeon. Two cadavers underwent a TKR, and the sensor was used to measure the load between the two compartments throughout a range of motion. The sensor had a few minor suggested improvements which will be implemented in the next iteration of the sensor. This included minor adjustments to the graphical user interface. Since the sensor replaces the tibial spacer intraoperatively, the addition of the sensor to the surgical procedure does not impact the patient’s recovery as opposed to some robotic systems which require the implantation of sensors into the bone. In conclusion, the sensor was proved to be a robust tool for load sensing during TKR through this cadaveric testing. The miniaturisation and packaging of the sensor will be the next stage. Then, will be clinical trials to investigate the link between specific values of load balancing and patient outcomes.
Source: Scopus