Patent ID: 8353915

Claim:
A method of quantifying shift in anterior and medial directions of a tuberosity of a tibia in an anteromedialization procedure, the method comprising the steps of: determining a slope of osteotomy; placing a retractor posterior to the tibia; quantifying a degree of shift in the anterior and medial directions of the tuberosity of the tibia to obtain a quantified deegree of shift; and selecting a horizontal bar corresponding to the quantified degree of shift; and conducting at least two cuts into the tuberosity with a system comprising: a cutting block secured medial to the tuberosity; a tuberosity drill pin; the horizontal bar configured to slidingly engage at least a portion of the tuberosity drill pin; and an exit indicator provided with a knob and configured to engage the cutting block and to slidingly move along a surface of the tuberosity and indicate an exit path of a cutting blade.