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An implantable prosthesis is provided for repairing or aug US PATENT DOCUMENTS menting anatomical weaknesses or defects, and is particu 2,671,444 A 3/1954 Pease larly suitable for the repair of soft tissue and muscle wall 3,875,928 A 4/1975 Angelchik openings. The prosthesis may include a layer of fabric that 4.271827 A 6/1981 Angelchik is constructed and arranged to allow tissue ingrowth and is 4,403,604 A 9/1983 Wilkinson et al. Susceptible to erosion into and the formation of adhesions 4,769,038 A 9/1988 Bendavid et al. with tissue and organs. The prosthesis is configured to 4,796.603 A 1/1989 Dahlke et al. inhibit edge erosion of the prosthesis into Surrounding tissue