Patent ID: 7578824

Claim:
A guide assembly for forming a tunnel through a proximal end of a tibia comprising: a brace having a first end and an opposing second end; a template slidably mounted at the first end of the brace, the template being adapted to rest on a lateral or medial facet at a proximal end of the tibia, the template having a longitudinal axis, the template being movable with respect to the brace along the longitudinal axis between a posterior position and an anterior position; and a tubular guide sleeve having a proximal end and an opposing distal end, the tubular guide sleeve being adjustably mounted on the second end of the brace such that when the template is disposed on the lateral or medial facet of the tibia, the distal end of the tubular guide sleeve can be selectively biased against a lateral, medial, or anterior side of a proximal end of the tibia, the tubular guide sleeve also having a central longitudinal axis that intersects with a first location of the template when the template is in the posterior position and intersects with a second location of the template when the template is in the anterior position, the second location being spaced apart from the first location, wherein the longitudinal axis of the template intersects the central longitudinal axis of the tubular guide sleeve when the template is in the posterior position and when the template is in the anterior position, such that the angle formed between the longitudinal axis of the template and the central longitudinal axis of the tubular guide sleeve is the same when the template is in the posterior position and when the template is in the anterior position.