Minimally Invasive Total Hip Replacement

Minimally Invasive Total Hip Replacement

What is Minimally Invasive Total Hip Replacement?

Minimally invasive hip replacement is a surgical procedure performed through a small incision and is muscle sparing. This involves less tissue trauma than in the traditional approach and makes recovery easier.

Hip Anatomy

The hip joint is one of the body's largest weight-bearing joints and is the point where the thighbone (femur) and pelvis (acetabulum) join. It is a ball-and-socket joint in which the head of the femur forms the ball and the pelvic acetabulum forms the socket. The joint surface is covered by a smooth articular cartilage that cushions and enables smooth movement of the joint.

Hip Arthritis

Hip arthritis is a painful and common disease of the hip joint caused by damage to the cartilage. Total hip replacement surgery is an option to relieve severe arthritis pain that limits your daily activities.

Minimally Invasive Total Hip Replacement Procedure

Surgery may be recommended in patients with severe cartilage damage and if conservative treatment options such as anti-inflammatory medications and physical therapy do not relieve the symptoms.

For minimally invasive hip replacement, the surgical technique and artificial implants remain the same as traditional hip replacement; the difference is the use of smaller incisions to perform the surgery and minimal soft tissue dissection. The surgery is performed through a single small incision under spinal spinal or general anesthesia.

In a minimally invasive approach, a small incision is made over the hip and the muscles are minimally dissected to reach the hip joint. The femur is dislocated from the acetabulum. The surface of the socket is cleaned and the arthritic bone is removed using a reamer. The acetabular implant is inserted into the socket. A plastic liner is placed inside the acetabular component.

The femur or thigh bone is then prepared by removing the arthritic bone using special instruments and shaped to exactly fit the new metal femoral component. The femoral stem is then inserted into the femur either by a press fit or using bone cement. Then, the femoral head component made of ceramic is placed on the femoral stem. The new joint is realigned. The muscles and tendons around the new joint are repaired and the incision is closed.

Advantages of Minimally Invasive Total Hip Replacement

The advantages of minimally invasive total hip replacement as compared with traditional total hip replacement may include:

• Smaller incisions
• Lesser muscle dissection
• Minimal postoperative pain
• Shorter hospital stay
• Less trauma to the surrounding tissues
• Quicker recovery
• Less blood loss
• Less scarring
• Faster rehabilitation

Postoperative Precautions for Minimally Invasive Total Hip Replacement

After undergoing minimally invasive hip replacement you will use assistive devices to offload stress from the hip as you recover. Dr. Steele and his team will make you aware of any restrictions. In general, restrictions are more limited than in the past but patients should be mindful to protect the hip while it is healing from surgery.

Risks and Complications of Minimally Invasive Total Hip Replacement

As with any major surgical procedure, there are certain potential risks and complications involved with total hip replacement surgery. They include:

• Infection
• Injury to neighboring nerves and blood vessels
• Formation of blood clots in the leg veins
• Implant malposition
• Fracture of the femur or pelvis

If you would like to have additional information on the treatment of hip arthritis or would like to learn more about minimally invasive total hip replacement, please contact Jack Steele, M.D., serving the communities of Towson, Baltimore, Cockeysville, MD