Hip Replacement Orthopedic Surgery Abroad
Hip Replacement Surgery
Hip replacement surgery, also called total hip arthroplasty, involves removing a diseased hip joint and replacing it with an artificial joint, called a prosthesis. Hip prostheses consist of a ball component, made of metal or ceramic, and a socket, which has an insert or liner made of plastic, ceramic or metal. The implants used in hip replacement are biocompatible — meaning they’re designed to be accepted by your body — and they’re made to resist corrosion, degradation and wear.
Hip replacement is typically used for people with hip joint damage from arthritis or an injury. Followed by rehabilitation, hip replacement can relieve pain and restore range of motion and function of your hip joint…
Your Hip Surgery
The hip is a ball and socket joint. The ball portion of the joint is called the femoral head, and is part of the upper leg bone (femur). The socket portion is called the acetabulum, and is part of the pelvic bone. The femoral head (ball) fits into the acetabulum (socket) and moves within its natural fluid, called synovial fluid, which helps to lubricate the joint during motion…
Two Types of Hip Fixation
There are two main types of fixation philosophies-cemented and porous. Both can be effective in the replacement of hip joints.` The physician (and the patient) will choose the best solution that is specific to the patient’s needs….
A ] Cemented Hip Implants
The cemented hip implant is designed to be implanted using bone cement (a grout that helps position the implant within the bone). Bone cement is injected into the prepared femoral canal….
B ] Porous Hip Implants
The porous hip implant is designed to be inserted into he prepared femoral canal without the use of bone cement. Initially, the femoral canal is prepared so that the implant fits tightly within it…..
The patient is first taken into the operating room and given anesthesia. After the anesthesia has taken effect, the skin around the upper thigh is thoroughly scrubbed with an antiseptic liquid. An incision of appropriate size is then made over the hip joint….
Replacing the Socket Portion of the Joint
One type of implant that replaces the socket consists of a metal shell that is lined with a strong plastic liner…
Removing the Surface of the Socket
The leg is maneuvered until the femoral head is dislocated from the socket.
A special reamer is then used to remove the damaged cartilage and bone surface from the acetabulum, and to shape the socket so it will match the shape of the implant that will be inserted….
Inserting the Implant
The shell portion of the socket implant may be attached either by using a special kind of epoxy cement for bones, or by pressing the implant into the socket so that it fits very tightly and is held in place by friction. Some implants may have special surfaces with pores that allow bone to grow into them to help hold the implant in place. Depending on the condition of the patient’s bone, the surgeon may also decide to use screws to help hold the implant in place….
Replacing the Ball Portion of the Joint
The implant that replaces the ball consists of a long metal stem that fits down into the femur. The metal ball is mounted on top of this stem….
Removing the Ball
A special power saw is used to remove the damaged femoral head…
Clearing and Shaping the Canal
The upper leg bone has relatively soft, porous bone tissue around the center. This part of the bone is called cancellous bone. It surrounds the canal, which mainly contains blood vessels and fatty tissue…
Inserting the Implant
The stem implant may be held in place by either using the special cement for bones, or by making it fit very tightly in the canal. If cement is used, it is injected into the canal first, and then the implant is inserted into the canal. If cement is not used, the implant is simply inserted into the canal. Like the socket implant, the stem implant may have a special surface with pores that allow bone to grow into them….
Closing the Wound
When all the implants are in place, the surgeon places the new ball that is now part of the upper leg bone into the new socket that is secure within the pelvic bone. If necessary, the surgeon may adjust the ligaments that surround the hip to achieve the best possible hip function…..
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