A method of repairing a meniscal tear of a subject includes providing a sheet ofcollagen membrane material having on one side thereof a smooth barrier face whichinhibits cell adhesion thereon and inhibits passage of cells therethrough.The sheet has a fibrous face opposite the smooth barrier face, the fibrous faceallowing cell growth thereon. The collagen is predominantly collagen I. Thesheet of collagen membrane material is fixed over a meniscal tear so that the fibrousface is oriented toward the meniscal tear.
