Procedure is usually performed under a general or spinal anesthesia. The procedure can be performed with the patient either lying on their side or on their back. The hip can be approached from the front, the back, or the side. After the hip is exposed, we use a surgical robot to precisely implement the presurgical plan. After the bone is registered using a novel non-invasive point collection mechanism, the neck of the femur is cut at a specific angle and the femoral head is removed.

This allows a good view into the hip socket. The arthritic hip socket often has lost its cartilage and has developed many bone spurs.
A device known as a reamer is used to prepare the hip socket for a metal cup by machining it to a hemispherical shape and exposing a bleeding surface of bone to allow in growth of bone onto the hip socket component (acetabular component).

Next, the component is impacted into place. Once the acetabular component has been applied, a second component or prosthesis is placed into the femoral shaft. This canel is prepared with a surgical robot to endure precise fit and fill and 98 percent bony surface to implant surface contact. This promotes bone in growth and therefore enhances the survival of the prosthesis. The femoral component is usually composed of titanium or cobalt-chromium alloy. Depending on the specific design, it can be implanted with bone cement or with direct contact to the bone (press-fit)

Robodoc Surgery
- Correct planning
- Correct position
- C orrect size
- Correct milling

Compare Manual with Robot surgery

- Possible to make a plan 0.1mm unit
- Alignment is possible to plan 3plane views
- Select best implant position in advance
- Select best implant size in advance
- Cut surface seems to be more even, not rough