Hip Joint Replacement


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Definition

Hip joint replacement is surgery to replace all or part of the hip joint with a man-made (artificial) joint. The artificial joint is called a prosthesis.


Alternative Names

Hip arthroplasty; Total hip replacement; Hip hemiarthroplasty


Description

Your hip joint is made up of two major parts. One or both parts may be replaced during surgery:

  • The hip socket (a part of the pelvic bone called the acetabulum)
  • The upper end of the thighbone (called the femoral head)

The new hip that replaces the old one is made up of these parts:

  • A socket, which is usually made of strong metal
  • A liner, which fits inside the socket. It is usually plastic, but some surgeons are now trying other materials, like ceramic and metal. The liner allows the hip to move smoothly.
  • A metal or ceramic ball that will replace the round head (top) of your thigh bone.
  • A metal stem that is attached to the thigh bone to make the joint more stable.

You will not feel any pain during surgery because you will have one of two types of anesthesia:

  • General anesthesia. This means you will be asleep and unable to feel pain.
  • Regional (spinal or epidural anesthesia). Medicine is put into your back to make you numb below your waist. You will also get medicine to make you sleepy. And you may get medicine that will make you forget about the procedure, even though you will not be fully asleep.

After you receive anesthesia, your surgeon will make a surgical cut to open up your hip joint. Often this cut is over the buttocks. Then your surgeon will:

  • Cut and remove the head of your thigh bone
  • Clean out your hip socket and remove the rest of the cartilage and damaged or arthritic bone
  • Put the new hip socket in place, then insert the metal stem into your thigh bone
  • Place the correct-sized ball for the new joint
  • Secure all of the new parts in place, sometimes with a special cement
  • Repair the muscles and tendons around the new joint
  • Close the surgical cut

This surgery usually takes 1 to 3 hours.


Why the Procedure Is Performed

The most common reason to have a hip joint replaced is to relieve severe arthritis pain that is limiting your activities.

Hip joint replacement is usually done in people age 60 and older. Younger people who have a hip replaced may put extra stress on the artificial hip. That extra stress can cause it to wear out. Part or all of the joint may need to be replaced again if that happens.

Your doctor may recommend a hip replacement for these problems:

  • You can't sleep through the night because of hip pain
  • Your hip pain has not gotten better with other treatments
  • Hip pain limits or prevents you from doing your normal activities, such as bathing, preparing meals, doing household chores, and walking

Other reasons for replacing the hip joint are:

  • Fractures in the thigh bone. Older adults often have a hip replacement for this reason.
  • Hip joint tumors

See also: Deciding to have knee or hip replacement


References

Eikelboom JW, Karthikeyan G, Fagel N, Hirsh J. American Association of Orthopaedic Surgeons and American College of Chest Physicians guidelines for venous thromboembolism prevention in hip and knee arthroplasty differ: what are the implications for clinicians and patients? Chest. 2009;135:513-520.

Harkess JW. Arthroplasty of the hip. In: Canale ST, Beatty JH, eds. Campbell's Operative Orthopaedics. 11th ed. Philadelphia, Pa: Mosby Elsevier; 2007:chap 7.

Jones CA. Total joint arthroplasties: current concepts of patient outcomes after surgery. Rheum Dis Clin North Am. 2007;33(1):71-86.

St Clair SF. Hip and knee arthroplasty in the geriatric population. Clin Geriatr Med. 2006;22(3): 515-533.

Schmalzried TP. Metal-metal bearing surfaces in hip arthroplasty. Orthopedics. 2009;32.

Lindstrom D, Sadr Azodi O, Wladis A, et al. Effects of a perioperative smoking cessation intervention on postoperative complications: a randomized trial. Ann Surg. 2008;248:739-745.


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Review Date: 9/22/2011
Reviewed By: C. Benjamin Ma, MD, Assistant Professor, Chief, Sports Medicine and Shoulder Service, UCSF Dept of Orthopaedic Surgery. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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Last Updated 12/6/2011
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