Abstract
The low foreign-body reaction exhibited by Marlex 1 and Marlex mesh 4 suggested to us and to others, 2,3 its possible use as a suture. We found that the monofilament, while possessing excellent tensile strength, was lacking in knot retention. This was due to the slickness (self-lubrication) of the monofilament and somewhat to plastic memory, a tendency of certain plastics to assume their original shapes following twisting or torsion. We found that a twisted multifilament thread (70 fibers) lacked tensile strength. Various braids of the monofilament were then tried and we finally discovered that a 8-strand braid of 6 mil monofilament (the same size monofilament used in making knitted Marlex mesh) made an excellent suture. 4 By braiding the monofilament, sufficient roughness was imparted to it to provide good knot retention. The 8-strand braid of 6 mil Marlex monofilament has a knot pull breaking strength of 7 lb., which corresponds
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