Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4986159 | Tribology International | 2017 | 5 Pages |
Abstract
Dynamic Intraligamentary Stabilization (DIS) represents a treatment option for acute anterior cruciate ligament ruptures. The device used for DIS consists of a polyethylene braid and a metallic spring system, allowing the remnants of the ligament to recombine in a stabilized position over the self-healing period. This work addresses the metallic wear generated thereby. A cadaveric study was carried out with n=8 knees over 50'000 cycles, along with a control group to validate the cleaning and assembly process. Gravimetric analysis yielded a total wear of (0.28±0.35)mg for the entire implant. 50% of the wear originated from the bush and 46% from the clamping element. In a worst case scenario, a total wear of 1.7 mg would result during the functional lifetime.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Christian May, Boyko Gueorguiev, Roman Heuberger, Jorge Sague, Christoph Gross, Philipp Henle, Daniel Delfosse, Janosch Häberli,