Extract
Correction of deformity with bone resection matched to the thickness of the
prosthesis is a required surgical placement
(Fig. 1). Current
instrumentation used during total Cstrategy to achieve a well-functioning
total knee re-knee arthroplasty consists of external jigs that surgeons
manually align to achieve proper bone cuts and implant position. However,
alignment errors of 3° to 5° can occur, contributing to improper
component and limb alignment. Verification of templating and instrument
alignment can be approached intraoperatively with a low-tech method (i.e.,
measuring the removed bone with calipers and recording the measurement on a
pathway grid) or a high-tech method (i.e., computer-assisted surgical
navigation). Such intraoperative measurement of bone resection during total
knee arthroplasty creates a pathway for identifying surgical errors early in
the decision-making process, when it is easy to make compensatory adjustments
with the remaining cuts. This aids the identification of the location and
timing of compounding errors.