Recently, robotic assistance has become more readily available to perform total knee arthroplasties. However, training can often be time consuming and there can be a learning curve. Therefore, the purpose of this article is to clearly and concisely describe the preoperative planning and surgical technique for using one version of robotic assistance, specifically the MAKO platform (MAKO Surgical Corp. [Stryker], Fort Lauderdale, Florida), for a standard osteoarthritic knee with a varus deformity that is commonly encountered by joint arthroplasty surgeons.