Patient Education Library
Minimally Invasive Hip Replacement - Hip Arthroplasty
Arthritis is a disease that causes joint pain, stiffness, immobility and swelling. It can affect the cartilage and bone in the hip joint. Cartilage is a very tough, shock absorbing material that covers the ends of many of our bones. The cartilage forms a smooth surface and allows the bones in our joints to glide easily during motion. Arthritis can cause the cartilage to wear away. Loss of this protective lining can cause painful bone on bone rubbing.
While the symptoms of hip arthritis may be tolerated with some medications and lifestyle adjustments, there may come a time when surgical treatment is necessary. One type of hip replacement surgery is called Minimally Invasive Hip Arthroplasty. Like traditional total hip replacement surgery, it involves removing the damaged portion of the hip and replacing it with artificial implants called a prosthetics. These devices are a replacement for the natural joint and allow pain-free movement.
Minimally Invasive Hip Arthroplasty uses smaller incisions than traditional surgery. This allows individuals to experience less pain, spend less time in the hospital, and have shorter recovery times.
The surfaces of the bones in the hip joint are covered with articular cartilage. This is a strong smooth cover that cushions the ends of our bones and allows them to move easily. The remaining surfaces of our hip joint are covered with synovial membrane. This smooth thin tissue secretes synovial fluid that lubricates the joint and eliminates friction between the bones.
The hip is one of our body’s largest weight-bearing joints. The primary function of the hip joint is to support the weight of our head, trunk, and arms. The hip joint provides a base of support that allows us to hold our body upright when we sit or stand. Likewise, it provides stability for our upper body while positioning the lower body for movement. The hip joint allows our legs to move to the front and back and from side to side as we walk, run, and climb stairs. It also allows our legs to rotate inward and outward. We rotate our legs when we place our feet on the ground. We angle our toes inward or outward for balance.
Osteoarthritis is the most common type of arthritis and affects millions of Americans alone. It tends to develop as people grow older. Osteoarthritis can result from overuse of the hip during sports or work. Post-Traumatic Arthritis can develop in individuals of all ages after a hip injury, such as a fracture.
Osteoarthritis causes the articular cartilage covering the end of the bones to gradually wear away, resulting in painful bone on bone rubbing. Abnormal bone growths, cysts or spurs, can grow in the hip joint. They add to the pain and swelling, while disrupting movement.
Traumatic Arthritis can develop after a severe hip injury or fracture. A hip fracture can cause a condition called Avascular Necrosis. This medical condition causes a lack of blood flow to the femoral head and leads to bone and tissue death. Avascular Necrosis can cause articular cartilage damage, resulting in hip pain and stiffness.
Your doctor will order X-rays to see the condition of your bones and to identify areas of arthritis, bone cysts, or bone spurs. Sometimes the tissues that surround the hip joint or the condition of the bones do not show up on an X-ray. In this case, your doctor may order Magnetic Resonance Imaging (MRI) scans or a bone scan. An MRI is used to obtain more detailed images of the soft tissues. A bone scan identifies the location of abnormal growths in a bone, such as arthritis. A bone scan requires that you receive a small harmless injection of a radioactive substance several hours before your test. The substance collects in your bones in areas where the bone is breaking down or repairing itself. X-rays, MRIs, and bone scans are painless tests.
A physical therapist will instruct you on the initial temporary movement restrictions that you will need to adhere to. The movement restrictions will help prevent your artificial joint from dislocating and allow it to heal. Depending on the surgical approach and extent of the surgery you may be asked to refrain from crossing your legs, bending your hips at more than a 90-degree angle, and pointing your feet inward or outwards.
Your physical therapist will teach you how to safely exercise to increase the strength in your hip. At first, you will need to use a walker, crutches, or cane while standing and walking. As you get stronger, your physical therapist will show you how to go up and down stairs. Your exercises program will gradually increase to strengthen your hip and improve your endurance. After hospitalization, you may continue with a home exercise program or outpatient physical therapy. When your incisions are healed you may perform physical therapy exercises in a heated therapeutic pool. The heat may help to relieve pain and stiffness, while the water provides you with support while exercising your joints.
An occupational therapist can show you ways to dress and bathe within the range of your movement restrictions. Your therapists can recommend durable medical equipment for your home, such as a raised toilet seat or a shower chair. The equipment may make it easier for you to take care of yourself as you heal and help to prevent injury.
Compared to traditional surgery, Minimally Invasive Hip Arthroplasty is associated with less blood loss, lower risks of infection, less pain, shorter hospital stays, and a shorter recovery time. You can also plan on being active sooner. You may be able to return to your normal activity level within four to six weeks, instead of the three to four month recovery period that usually follows traditional surgery.
It is important to avoid falling. Your therapists can suggest ways to prevent falls in your home. This may simply mean removing throw rugs and making sure that your walking path is free of cords and clutter. You should also continue to use the durable medical equipment as advised.
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This information is intended for educational and informational purposes only. It should not be used in place of an individual consultation or examination or replace the advice of your health care professional and should not be relied upon to determine diagnosis or course of treatment.
The iHealthSpot patient education library was written collaboratively by the iHealthSpot editorial team which includes Senior Medical Authors Dr. Mary Car-Blanchard, OTD/OTR/L and Valerie K. Clark, and the following editorial advisors: Steve Meadows, MD, Ernie F. Soto, DDS, Ronald J. Glatzer, MD, Jonathan Rosenberg, MD, Christopher M. Nolte, MD, David Applebaum, MD, Jonathan M. Tarrash, MD, and Paula Soto, RN/BSN. This content complies with the HONcode standard for trustworthy health information. The library commenced development on September 1, 2005 with the latest update/addition on April 13th, 2016. For information on iHealthSpot’s other services including medical website design, visit www.iHealthSpot.com.