The hip is a ball-and-socket joint. Arthritis, avascular necrosis (loss of blood supply to the ball) or a fracture of the femoral neck can destroy its smooth surfaces. In a total hip replacement, the socket is lined with a new cup and the ball is replaced with a polished head on a stem inside the thigh bone. In older patients with a hip fracture, a replacement allows early walking and avoids long bed rest.
When is it needed?
- Hip osteoarthritis
- Avascular necrosis of the femoral head
- Femoral neck fractures in older adults
- Arthritis after childhood hip problems (DDH)
- Arthritis after an acetabular fracture
How it is done
- 1Planning
X-rays are templated to restore leg length and the natural centre of the hip.
- 2The new joint
The worn ball and socket are replaced with a cup, liner, head and stem.
- 3Early walking
Patients usually walk with support on the first day after surgery.
- 4Protecting the hip
Simple precautions in the first weeks reduce the risk of dislocation.
Advantages
- Dramatic pain relief
- Better walking distance and sleep
- Restored leg length and movement
- Early mobility after hip fractures
Recovery
- Days 1–3Walking with a frame, learning safe movements.
- Weeks 3–6Moving to a stick and building strength.
- Month 3Most patients walk freely without aids.
Common questions
Is hip replacement painful?
Pain after surgery is usually much less than the arthritis pain before it, and is well controlled with modern pain management.
Will my legs be the same length?
Leg length is planned before surgery and checked during it. Small differences are usually not noticed.
How long will it last?
Modern hip replacements commonly last 20 years or more.
This information is general and does not replace a medical consultation. Every case is assessed individually.
