a prosthetic device suitable for treating canine hip dysplasia and lumbosacral disorders and method of use . the prosthetic device comprises a harness attachable to the canine . complementary rear braces are provided comprising a right brace and a left brace wherein the right brace comprises a right leg strap for encircling the right leg of the canine , and the left brace comprises a left leg strap for encircling the left leg of the canine . the right brace and left brace are engageable to apply force to persuade the hip towards a natural position . a tether between the harness and the complementary rear braces draws the right brace and left brace forward .