The anterior approach is frequently performed by Dr. Erik Severson. This approach uses a smaller incision near the front of the hip and avoids cutting muscle to access and replace the joint. Hip arthroplasty requires the replacement of the ball which sits at the top of thigh bone as well as the socket of the pelvis. The worn out hip joint is then replaced with prosthetic components. This procedure is done to reduce pain and to improve function. With the traditional posterior (back of the joint) approach, the surgeon must cut through muscle to access the joint.

Muscle sparing, also known as direct anterior total hip arthroplasty, is a minimally invasive hip replacement surgery. It is referred to as muscle sparing surgery because no major muscles are cut enabling a quicker return to normal activity. 

In total hip replacement, it is important to utilize computer-assisted hip navigation for more accurate placement of hip components. The orthopaedic team tailor fits the surgical plan prior to each surgery.

Dr. Erik Severson, fellowship trained in orthopaedic surgery and specializing in joint replacements and revisions, uses the VELYS Hip Navigation system for greater precision to improve outcomes for total hip replacement patients. This computer-guided tool gives him precise measurements to use for hip implant positioning. This real-time data provided via X-rays and a computer-generated chart during the operation helps him determine the precise leg length to give the patient the greatest stability. Other benefits include a shorter operation with less time under anesthesia.

Advantages of VELYS™ Hip Navigation may include:

• Restoration of your leg length may lead to better hip stability and preservation of your hip’s natural movement.
• Verification of desired implant position that may potentially help reduce the likelihood of hip dislocation.
• Reduced operative time.

Total hip replacements are most often done to provide relief for severe arthritis, fractures, and some bone abnormalities. Patients who are candidates for total hip replacement surgery generally have:  severe pain that impedes work and everyday activities; pain that cannot be managed by anti-inflammatory medications, canes, or walkers; or significant stiffness of the hip.

Total hip replacement surgery is a major surgery and there are some potential risks that should be discussed with your doctor. The average time for full recovery is about six to 12 weeks.

Hip replacement consists of the replacement of the femoral (thigh bone) head and the acetabulum, or socket of the pelvis. For the surgeon to do this, five components are implanted where the arthritic bone once was.

Acetabulum (hip socket): 

• After removal of the arthritic femoral head, the surgeon shaves away arthritis present in the socket. They then press-fit a cup into the pelvis.
• A high-grade polyethylene liner is then placed into the cup to allow for smooth movement between the cup and the femoral head.

Femur (thigh bone):

• The femur is then prepared for the stem. This stem will hold the femoral head in place and is placed in the bone space down the femur.
• A neck is placed on the end of this stem to accept the new femoral head.