A method of repairing a meniscal tear of a subject includes providing a sheetof collagen membrane material having on one side thereof a smooth barrier facewhich inhibits cell adhesion thereon and inhibits passage of cellstherethrough. The sheet has a fibrous face opposite the smooth barrier face,the fibrous face allowing cell growth thereon. The collagen is predominantlycollagen I. The sheet of collagen membrane material is fixed over a meniscaltear so that the fibrous face is oriented toward the meniscal tear.