Robotic-Assisted Total Knee Replacement

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Precision You Can Feel

At the Surgery Center at Flagstaff Bone & Joint, Amber Randall, M.D., and Brianna Patti, M.D., perform OMNIBotics® robotic-assisted total knee replacement (TKR).

The OMNIBotics procedure is for patients who experience debilitating pain caused by joint degeneration due to osteoarthritis that has progressed to all three compartments of the knee. In the procedure, the surgeon replaces the damaged cartilage and bone with state-of-the-art implants. A successful procedure may be dependent on many factors, including leg alignment, precise placement of the implant, and soft-tissue balance.

How OMNIBotics Works

OMNIBotics robotic-assisted total knee replacement is an innovative procedure that combines surgical navigation and robotics to help Dr. Randall and Dr. Patti place and fit implants with greater accuracy compared to conventional approaches. Each procedure is planned and executed to the specific anatomy of the patient.

Patient-Specific Planning

The patented OMNIBotics Bone Morphing® technology generates and displays a 3D model of the patient’s anatomy, enabling the surgeon to plan implant fit and alignment before any bone resections are performed. The BalanceBot™ is also used during the planning process to measure the soft-tissue structures, helping to create a customized implant plan specific to the patient’s anatomy.

Robotic Precision

With the plan in place, the surgeon then uses the OMNIBot™ robotic cutting guide to assist with the removal of the arthritic knee surfaces. Like a GPS, the system positions the robotic-assisted cutting guide, enabling the surgeon to prepare the bone to exact specifications and precisely place the implant. The precision of this guide is important to ensure the implant plan is carried out, within accuracy that has been shown to be significantly better than other knee replacement procedures available.3

  • morphing digital image
  • femoral planning digital image
  • final balance digital image

Alignment & Balance

Once the bone is prepared, the surgeon will again measure the soft-tissue balance and knee function with the BalanceBot. These measurements help confirm the plan was carried out precisely and provide insight as to how the total knee replacement will perform.

The OMNIBotics procedure has demonstrated an overall patient satisfaction rate above 96%, compared to 81% from traditional methods.4

To learn more about robotic-assisted total knee replacement or to schedule an appointment with one of our experts, please call (928) 773-2280.

  1. Koulalis D, O’Loughlin PF, Plaskos C, Kendoff D, Cross MB, Pearle AD. Sequential versus automated cutting guides in computer-assisted total knee arthroplasty. Knee. 2011 Dec;18(6):436-42
  2. Clark TC, Schmidt FH. Robot-Assisted Navigation versus Computer-Assisted Navigation in Primary Total Knee Arthroplasty: Efficiency and Accuracy. ISRN Orthop. 2013 Jun 24;2013. MC-004 REV A
  3. Clarke, “Robotic vs Computer assisted Navigation in TKA, Intraoperative Efficiency and Accuracy,” ISRN Orthopedics Volume 2013, Article ID 794827
  4. Keggi JM, Lawrence JM, Randall AL, DeClaire JH, Ponder CE, Koenig JA, Shalhoub S, Wakelin EA, Plaskos C. Predictive Ligament Balancing in Robotic TKA - One Year Clinical Outcomes from a Multicenter Study CAOS 2020