An orthopedic plate assembly for supporting a bone can include a y-shaped first plate and a second plate separate from the first plate. The first plate can be attached to the bone and have a center line. The first plate can include an elongate body attachable to a first portion of the bone and extending along the center line and first and second arms transversely extending from an end of the body. The first and second arms can define an aperture in the first plate. The second plate can be attached to the bone. The second plate can have a first end and a second end opposite the first end configured to be disposed on and engaged with the first arm and the second arm, respectively. The second plate can be configured to span the aperture transverse to the center line when engaged with the first and second arms.