Well the good thing is it's in the upper 1/3 of the limb ,I had one with the similar issue others may do it differently but I used very thin CA glue in the crack and put a comb Flax tapering patch on & covered the whole back with goat raw hide , that comb flax is really strong patch I used TB 3 but I have a friend that uses smooth on when he does it for the patch & then TB 3 for the hide , I like that way better then a wrap as you can re tiller that area & it's stronger !