A unitary knee patella stabilizer for a user's leg, the stabilizer including a patella stabilizer sleeve having an open-upper end and an open-lower end adapted to slidably receive the leg portion of the user and an upper fastener assembly having a first strap, connected at its proximal end to an upper end of the patella stabilizer sleeve, the first strap having a fastener at a distal end of the first strap. The apparatus further includes a lower fastener assembly having a second strap, connected at its proximal end to a lower end of the patella stabilizer sleeve, the second strap having a fastener at a distal end of the second strap and a buttress comprising a plurality of straps adapted to be adjustably positioned on an inside surface of the patella stabilizer sleeve around a location on a circumferential edge of a patella opening.