What is Total Hip Replacement
THR is also called total hip arthroplasty and can be described as a resurfacing as only the surface of the bones of the joint are replaced. After surgery there is pain relief and this improves the ability to walk. A THR needs hospitalization for 3-5 days. The procedure is done under general anesthesia or spinal anesthesia or a combination of both.
Implant components include the ball (made of highly polished strong metal or ceramic material) and the socket component (a durable cup of plastic, ceramic or metal). The prosthetic components may be cemented into the bone to allow the bone to grow onto the components. Depending on the quality and strength of the bone a cemented stem or non-cemented socket may be used
The surgery itself takes a few hours. After surgery the patient will be in the recovery room till the anesthesia recovery criteria is met
The aim of the surgery is to remove the damaged cartilage and bone and replace them with new metal, plastic or ceramic implants to restore alignment and function of the hip.
Steps in the surgery
Step 1: The damaged thigh bone head is removed and replaced with a metal stem that is fitted or cemented into the hollow centre of the thigh bone.
Step 2: A metal or ceramic ball is placed on the upper part of the stem and represents the head of the thigh bone.
Step 3: The damaged cartilage surface of the socket is removed and replaced with a metal socket. Screws or cement are used to hold the socket in place.
Step 4: A plastic, ceramic or metal spacer is inserted between the new ball and socket to allow for a smooth gliding surface
Indications For Sugery
- Hip pain that restricts activities of daily living, such as walking or bending etc
- Hip pain at rest and also disturbing sleep
- Stiffness that limits movement
- Inadequate pain relief from medication, physiotherapy or walking aids.
How to ensure good results of surgery?
- Weight loss in those who are overweight
- Adherence to physiotherapy regimen
- Adequate and correct exercises