The MAKOplasty® hip procedure is a treatment option for people suffering with either non-inflammatory or inflammatory degenerative joint disease (DJD), as well as osteonecrosis of the hip.
The hip is a ball-and-socket joint consisting of the spherical head of the femur (thighbone), which moves inside a cup-shaped hollow socket in the pelvis (acetabulum). When cartilage in the hip wears down, bare bone is exposed. When bone-on-bone contact occurs within the joint, it can cause pain in the groin, hip, spine, thigh, and/or knee.
Hip implants reconstruct a bearing surface to replace lost cartilage and prevent painful bone-on-bone grinding. Total hip replacement consists of removing diseased bone in the acetabulum, which is fit with a cup and liner, and replacing the femoral head with new head and stem components.
MAKOplasty® technology helps the surgeon accurately place and align the implant components, which is critical to the success of the hip replacement.The RIO® Robotic Arm Interactive Orthopedic System enables surgeons to use a 3D anatomic reconstruction based on a CT scan of the patient’s hip to pre-surgically plan implant positioning. During the procedure, it provides real-time data for intraoperative adjustments, further enabling surgeons to optimally align and position implants, and accurately reproduce the surgical plan.
The operation is performed by first preparing the socket (aka the acetabulum). The surgeon uses the robotic arm to accurately ream and shape the acetabulum to prepare it for cup placement. The RIO® enables accuracy in controlling the depth of bone removal and determining the hip’s center of rotation, which aids in implant positioning and alignment. When the bone preparation is complete, the surgeon uses the robotic arm to implant the cup, and the plastic liner is then locked into the metal cup. Moving on to the femur, the surgeon shapes the inner aspect of the bone required for the implant, and the femoral component’s position is measured by RIO®. The femoral stem is implanted and the correct ball size is attached to the stem to reconstruct leg length and soft tissue tension.
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