Abstract
The high tenacity organic fiber Kevlar 49® (Aramid) may be a suitable material for alloplastic ligament replacement. In order to exclude degradation by tissue fluid, the influence of human plasma upon the surface of Kevlar prostheses specially designed for anterior cruciate ligament (ACL) replacement was studied by scanning electron microscopy. Incubation in human plasma (blood groups A and O) for up to 26 weeks had no effect upon the surface characteristics of Kevlar; the diameter of the fibers remained unchanged, their surface did not show any sign of erosion and smaller fragments were not dissolved. Scanning electron microscopy did not give any indication that Kevlar was subject to biochemical degradation by human plasma.
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