A bone cutting block includes: a 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 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; and two side plates opposing one another, including a plurality of locating features, and supporting the plurality of saw slot 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.