A cutting guide includes a first guide structure having a base, a first saw support, and a second saw support. The first saw support is attached to the base and defines a first saw contact surface. The second saw support is attached to the base and defines a second saw contact surface that is spaced apart from the first saw contact surface so as to define an elongated cutting slot therebetween. The elongate cutting slot defines (i) a first slot portion, (ii) a second slot portion that is contiguous with the first slot portion, and (iii) a third slot portion that is contiguous with the second slot portion. The second slot portion is interposed between the first slot portion and the third slot portion.