The knee is a complex load-bearing joint that is subjected to compound loading patterns that often lead to injury. The most common traumatic injury occurs in the anterior cruciate ligament; with approximately 80,000 ACL injuries annually in the United States and 50,000 of these requiring reconstructions . The role of the ACL is critical in knee joint stability. It prevents excess movement accounting for over 80% of the total restraining force for anterior tibial translation . ACL reconstruction has been found to have a 10–25% failure rate . These failures could be attributed to our limited understanding of the forces in the ACL during daily activities . ACL measurements have been taken with invasive methods using strain gauges and other types of transducers surgically implanted within the ACL . Noninvasive methods have used ultrasound and MRI to measure strains, or ground reaction forces, motion tracking systems, and biomechanical models to interpolate the in vivo forces [1,4,5]. Recently the use of robotic technology has offered the possibility of simulating in vivo motion paths to determine the force and moments in the knee [3,6,7]. This method has the ability to accurately and precisely control motions and allows for testing one specimen under different experimental conditions (e.g. ACL-intact versus ACL-deficient) . It is important to use this robotics technology with an appropriate animal model taking into consideration joint size and anatomical structure to ensure the results are relevant . The objectives of this study were to examine how anterior translation affected anterior knee force, to determine if right-left differences exist, and to determine if the porcine knee is ACL dependent.
- Bioengineering Division
Effect of Anterior Translation on Anterior Knee Force in a Porcine Model
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Boguszewski, DV, Shearn, JT, Wagner, CT, & Butler, DL. "Effect of Anterior Translation on Anterior Knee Force in a Porcine Model." Proceedings of the ASME 2008 Summer Bioengineering Conference. ASME 2008 Summer Bioengineering Conference, Parts A and B. Marco Island, Florida, USA. June 25–29, 2008. pp. 375-376. ASME. https://doi.org/10.1115/SBC2008-192597
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