Robotic Knee Replacement Surgery

Robotic Hip Replacement Surgery

Understand the technology of Robotic Hip Replacement Surgery and the process of undergoing Total Hip Replacement (THR) with LEO-2 the world best Robotic Arm powered by Stryker Mako technology.

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Step 1

Investigation and Segmentation for Robotic Hip Replacement Surgery

Before the Robotic Hip Replacement Surgery, The X rays and the CT scan of the patient’s Pelvis is segmented and fed into the robot to obtain a three-dimensional model of the hip joint -the femur (thigh bone), the socket (acetabulum) and the surfaces that have been damaged by arthritis.

The orthopedic robotic surgeon with his or her own preferences can then preoperatively plan the best location for the femoral component and tibia component over the model bone, based on factors including patient size, angle of legs, location of articulating surface, and how the head of femur moves in the socket (acetabulum).

Pre-Planning and Segmentation of the CT SCAN image Robotic Hip Replacement Surgery

Figure 1 - Pre-Planning and Segmentation of the CT SCAN image

Step 2

Patient specific personalized pre-operative planning for Hip Surgery

The health provider team then loads the plan onto the robot. The surgeon in the operating room compares the plan to the individual patient’s motion — bending the hip, flexing, straightening it out, all while looking at how the motion is replicated on the robot’s screen. Based on whether ligaments are lax or tense, the surgeon might tweak component positioning by fractions of millimetres before locking in the final plan. The robot arm will lock the plane of its reamer into a place relative to the position of the final three-dimensional plan — and assists the surgeon with performing the cuts. The surgeon pushes the reamer while Robotic Hip Replacement Surgery, but the robot limits where the reamer can go in space

It is important to understand that the surgery is performed by an orthopaedic Robotic surgeon, who guides the robotic arm during the surgery to position the implant in the hip joint.

The Robotic arm does not perform surgery, make decisions on its own or move without the surgeon guiding it. It also allows the surgeon to adjust your plan during surgery as needed.

 Pre-Operative Planning stage – virtual bone model before Robotic Hip Replacement Surgery

Figure 2 -Patient Specific Personalized Pre-Operative Planning prior to Surgery

Step 3

Execution of plan during Hip surgery within pre-defined limits of haptic boundary

The surgeon performs the Hip replacement surgery, but now with the robotic arm the accuracy and precision specific to a plan, specific to a patient, which was not possible before with conventional, manual instruments.

The robot’s haptic boundary prevents soft-tissue trauma. There are several peer-reviewed publications on the benefits, including reduction in post-operative pain, increased patient satisfaction, increased flexion, less opioid drug use; reduction in length of stay, and fewer readmissions due to complications from the procedure has been published

Benefits of Robotic-Assisted Total Hip Replacement

Robotic Hip Replacement Surgery is being adopted to have the best surgical plan, the best execution and to have a positive clinical outcome for the patient. Robotic surgery has been increasingly chosen as an option to address human errors that could potentially result in misalignment and decreased longevity of the prosthesis

The precision of robotic-assisted surgery allows for: More accurate implant positioning, which can result in a more natural feeling after surgery, Improved safety and reduced risk of injury to adjacent tissues as there is lesser retraction, Value & Safety Provided by the Pre-Op CT, Small incisions, which can mean a quicker recovery, a shorter hospitalization, and less pain and a potential for better long-term function.

Accurate position is visualized on a screen while Robotic Hip Replacement Surgery

Figure 3 - Execution of Plan within Predefined Limits of Haptic Boundary so Soft tissue and Neurovascular damage cannot be done, and accurate Position is visualized on a screen whist operating

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