This disclosure is directed to a resilient interpositional
arthroplasty implant for application into joints to pad
cartilage defects,
cushion joints, and replace or restore the
articular surface, which may preserve joint integrity, reduce pain and improve function. The
implant may endure variable joint compressive and shear forces and cyclic loads. The
implant may repair, reconstruct, and regenerate joint
anatomy, and thereby improve upon
joint replacement alternatives. Rather than using periosteal harvesting for
cell containment in joint resurfacing, the walls of this invention may capture, distribute and hold living cells until aggregation and
hyaline cartilage regrowth occurs. The implant may be deployed into debrided
joint spaces, molding and conforming to surrounding structures with sufficient stability to avoid
extrusion or
dislocation. Appendages of the implant may repair or reconstruct tendons or ligaments, and an interior of the implant that is
inflatable may accommodate motions which mimic or approximate normal joint motion.