Customized patient-specific bone cutting blocks
View Patent ↗A number of orthopaedic surgical instruments are disclosed. A method, apparatus, and system for fabricating such instruments are also disclosed.
1. A customized patient-specific tibial cutting block, comprising: a body having a bone-facing surface that has a customized patient-specific negative contour configured to receive a portion of an anterior side of a patient's tibia that has a corresponding positive contour; an outer surface opposite the bone-facing surface, the outer surface having a recessed area sized to receive an end of a surgeon's finger, the recessed area corresponding to a location on the body at which pressure is to be applied to couple the customized patient-specific tibial cutting block to the patient's tibia; at least one tab extending posteriorly from the body, the at least one tab having a bone-facing surface having a customized patient-specific negative contour configured to receive a portion of the proximal side of the patient's tibia that has a corresponding positive contour; and a cutting guide coupled to the body, wherein: the cutting guide has a cutting slot defined therein, and the cutting guide is formed from a material different from the body and being positioned to allow a surgeon to perform a proximal cut on the patient's tibia using the cutting slot, wherein the cutting guide is formed from a metallic material and is overmolded to the body of the customized patient-specific femoral cutting block.
2. The customized patient-specific tibial cutting block of claim 1 , wherein:
the at least one tab comprises a first tab extending posteriorly from the body and a second tab extending posteriorly from the body,
each of the first tab and the second tab has a bone-facing surface having a customized patient-specific negative contour configured to receive a respective portion of the proximal end of the patient's tibia that has a corresponding positive contour, and
the first tab and the second tab define an opening therebetween.
3. The customized patient-specific tibial cutting block of claim 1 , wherein the body has a cutting slot defined therein, the cutting slot being positioned to allow a surgeon to perform a proximal cut on the patient's tibia using the cutting slot.
4. The customized patient-specific tibial cutting block of claim 1 , wherein:
the body has an anterior edge, and
the recessed area sized to receive an end of a surgeon's finger is formed in the anterior edge of the body.
5. The customized patient-specific tibial cutting block of claim 1 , wherein:
the body includes a cutting slot defined therein to allow a surgeon to perform a proximal cut on the patient's tibia using the cutting slot, and
the recessed area sized to receive an end of a surgeon's finger is positioned superiorly of the cutting slot.