Total hip replacement involves fitting an artificial implant to replace the diseased hip joint.

It is made up of the following components:

  • Hip cup or socket (with hip insert) which is press fitted (metal) or cemented (polyethylene) into the acetabulum
  • Liner inside hip cup made up of polyethylene, metal or ceramic ( in case of uncemented THR)
  • Femoral stem which is implanted in the femoral bone, either press fit or with bone cement and
  • Ball-shaped head which is placed on the femoral stem and moves within the cup / liner. It is made up of either metal or ceramic

Types of Hip Replacement

Uncemented Total Hip Replacement:

Both the socket and the stem components are fitted into the bone without using acrylic bone cement. This is a precision operation and the bone grows into the surface of the components holding them securely. This type of replacement is advised for younger patients with good bone stalk. However, it is an expensive option as compared to the cemented one.

Cemented Total Hip Replacement:

Both the socket and the stem are fixed into the bone using acrylic bone cement. This is advised for elderly patients above the age of 65 years. It is also a cost effective, yet equally durable option available for economically constrained patients.

Hybrid & Reverse Hybrid Total Hip Replacement

In this surgery, either stem or socket is cemented while the other is uncemented. Implants can be mixed and matched for optimum economy and efficacy

Hip Surface Replacement:

Instead of sacrificing the worn out head of femur (ball), only the surface is shaved off and a new surface is fitted onto the socket and the head of femur. This is a bone preserving operation that allows patients faster recovery and patients can have full range of movements allowing them to squat and sit cross-legged. Also future conversion from surface replacement to THR is not very difficult.