Patent ID: 9033991
Filing Date: 2015-05-19
Classification: A61B

Abstract:
1. A low profile patient specific cutting block for a knee, comprising: a. a plurality of bone interfacing portions configured to overlie portions of an end of a bone, the bone interfacing portions each having a surface generally a negative of the portion of the bone that the bone interfacing portion is configured to overlie, the bone interfacing portions being angularly offset from each other such that a first of the bone interfacing portions is configured to overlie an anterior portion of the bone extending in a first direction and a second of the bone interfacing portions is configured to overlie another portion of the bone extending in a second direction generally perpendicular to the first direction; and b. a cutting slot oriented in a fixed position relative to the bone interfacing portions, such that the cutting slot directs a cutting tool at a fixed angle and at a fixed depth from the bone interfacing portions; and c. an anteriorly-facing exterior surface defining an index marking that provides an indication of an orientation of the cutting block relative to the bone, wherein the index marking comprises a mechanical axis index positioned along a mid-portion of the cutting block and extending in a superior-inferior direction transverse to a longitudinal axis of the cutting slot to provide an indication of the orientation of the cutting block relative to the bone.