Predictive Balance™ Technique

Alignment. Balance. Minimal Releases

The OMNIBotics Predictive Balance™ technique is the integration of our three most powerful technologies: Bone Morphing™ femoral modeling, the OMNIBot™ resection robot, and the BalanceBot™ ligament balancing robot. These technologies all work in conjunction to place knee implants in very accurate alignment and balance that results in less aggressive soft-tissue releases. This reduction in releases along with improved alignment may result in a faster recovery with less overall pain.

Step 1 - OMNIBotics Bone Morphing™

Real-time 3d modeling of anatomy without a CT or MRI

Patented OMNIBotics Bone Morphing technology generates an accurate 3D digital model of a patient’s knee with a pinpoint accuracy and precision. The bones are mapped intraoperatively and efficiently by the surgeon. With Bone Morphing, there is no requirement for any pre-operative imaging such as CT scans or MRIs; reducing the cost and radiation exposure for patients.


Step 2 - NanoBlock Tibial Resection

With other computer-assisted TKA procedures, attempting to navigate conventional cutting guides can often introduce errors in the final position of the jig with no capability to adjust the alignment without repositioning the guide. The NanoBlock simply allows the surgeon to attach the cut guide in approximate position and then fine-tune the alignment to match the surgical plan with the aid of the OMNIBotics knee software.


Step 3 - BalanceBot Soft-tissue Assessment

The BalanceBot™ is the world’s first robotic soft-tissue balancer. It acts like a robotic laminar spreader to measure soft-tissue tension throughout motion before making any femoral resections. The BalanceBot™ therefore captures ligament tension and the resultant gaps throughout the mid-flexion range. This is different than most ligament balancers which can only measure ligament tension at 0° and 90°. After gap and tension data is gathered, it is sent to the computer to plan an implant placement that will balance the joint gaps and soft-tissue tension.


Step 4 - Virtual Femoral Planning with Predictive Balance™

Plan implant positioning, view bone cuts, and see predicted ligament balance before making femoral resections

OMNIBotics “Virtual Surgery” allows the surgeon to plan the APEX Knee™ implant position based on the 3D modeling from Bone Morphing and the soft-tissue tension data from BalanceBot. The femoral planning screen allows the femoral component placement to be adjusted in 3D space before the actual resections. This helps ensure the final implant placement will be optimized to ensure alignment and balance while minimizing the extent of subsequent soft-tissue releases. This virtual plan is then sent to the OMNIBot™ for the femoral resections.


Step 5 - OMNIBot™ Femoral Resections

The OMNIBot is a patient-mounted apparatus that robotically positions a single resection slot to perform all femoral resections according to the surgeon’s plan. Compared to conventional 4-in-1 resection guides, the single slot of the OMNIBot is more time efficient and improves surgeon visibility of the bone and surrounding soft-tissues.


Step 6 - BalanceBot Final Assessment

After femoral resections, the BalanceBot™ is used to measure the soft-tissue state. Data is once again depicted on the final assessment screen to help the surgeon determine which insert thickness will provide the best balance.


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