Mako Virtual Range of Motion

Styrker – Mako

Date: 28/8/21
Duration: 2:31 mins

Abstract

The virtual range of motion feature allows the user to visualise and assess impingement between the femur, the pelvis and their planned components during different patient manoeuvres.  Watch the virtual range of motion feature in action.

Transcript

The virtual range of motion feature allows the user to visualise and assess impingement between the femur, the pelvis and their planned components during different patient manoeuvres.

In reduced mode a 3 x 2 table is displayed in the lower left hand side of the main window with columns labelled as stand and sit and rows labeled as flexion extension, internal external and abduction adduction.   When the user selects the stand or sit column labels, the patient pelvic bone model will update its orientation.  If pelvic tilt has not been input for either pose the supine pose will be assumed for the pelvic model during range of motion assessment.  If pelvic tilt values have been entered the virtual range of motion tool uses the pelvic tilt inputs for the stand and sit poses.

The user can switch to a lateral view of the bone models by selecting the lateral view button in the control panel.  The table allows the user to modify range of motion values for the selected pose.  The entered values should approximate the maximum expected range of motion for the patient.

The feature also allows the user to make adjustments in 5° increments by selecting either the up or down arrow next to each input box.  When the user changes the range of motion values for the operative femur and there is contact between bone models and/or implant components the application will provide visual feedback to notify the user.  The visual representation will be highlighted in red.

To better assess impingement between components the user may need to rotate the view and hide the femur and stem models.  The surgeon can change the supine cup inclination or supine cup version in the reduced mode by entering the values in the input boxes to avoid impingement.

Stryker Robotics Profile

Mako SmartRobotics combines three key components: 3D CT-based planning, AccuStop haptic technology, and insightful data analytics, into one platform that has shown better outcomes for total knee, total hip and partial knee patients. It all starts with a CT scan that creates a 3D image of the patient’s unique anatomy. This information allows you to create your patient’s plan and assess and balance the joint. Using the CT scan of your patient, Mako AccuStop haptic technology guides you to cut what’s planned precisely for each patient. For some patients, that means preserving soft tissue; for others, that means saving healthy bone. Learn more about this technology and the surgical techniques.