A method of forming a bone cutting block includes: forming a plurality of saw slot plates and two side plates, the plurality of saw slot plates each including a plurality of ends opposing one another, each of the plurality of ends including a locating feature, the side plates including a plurality of locating features and supporting the plurality of saw slot plates using the side plates, each locating feature of the plurality of saw slot plates being connected with a respective one of the plurality of locating features of the side plates and the side plates thereby opposing one another, the plurality of saw slot plates defining at least one slot therebetween which is configured for receiving a bone saw blade therethrough to make a predefined cut in a bone.
