A construct for use in a surgical repair of a damaged or inflamed joint is described. The construct contains an allograft having at least one layer of human amnion and chorion tissues, and is adapted for enclosing a damaged or inflamed joint or for covering or replacing a damaged or inflamed joint sheath during the surgical repair. Methods of preparing the construct and using it in a surgical repair of a damaged or inflamed joint are also described. The products and methods improve the performance of the joint surgery, e.g., by reducing inflammation, inhibiting fibrosis, scarring, fibroblast proliferation and post-operative infection while also promoting more rapid healing of damaged or traumatized joints.
