Patent ID: 8518048

Claim:
A cutting guide device for use with a bone, comprising: a cutting block having a first side and a cutting block surface, the cutting block being couplable to the bone such that the first side faces away from the bone; a body releasably coupled to the cutting block and comprising an upper body part and a side body part extending from the upper body part, the body being configured such that, when the body is coupled to the cutting block, the side body part is disposed adjacent the first side of the cutting block; and an adjustable guide comprising at least one curved arm releasably coupled to the upper body part in a first configuration, whereat the at least one curved arm is curved towards the side body part and away from the bone when the cutting block is coupled to the bone, and in a second configuration, whereat the at least one curved arm is curved away from the side body part and towards the bone when the cutting block is coupled to the bone; wherein the upper body part comprises a generally flat underside and, when the adjustable guide is coupled to the upper body part in the first configuration and the second configuration, the at least one curved arm defines a surface that is substantially contiguous with the underside of the upper body part to define together a cutting guide surface arranged to extend parallel to the cutting block surface to define a cutting slot that extends to the first side of the cutting block.