What is the difference between partial and total joint replacement?

A partial joint replacement replaces only the damaged part of a joint, while a total joint replacement replaces most or all of the damaged joint surfaces.

The exact difference depends on which joint is being treated.

Partial joint replacement

In partial replacement:

• Only the affected part of the joint is replaced.
• Healthy bone, cartilage, and ligaments are preserved where possible.
• It is only suitable when damage is limited to a specific area.
• Recovery may be quicker in selected patients.

For example, partial knee replacement may be considered when arthritis is limited to one compartment of the knee.

Total joint replacement

In total replacement:

• The major damaged joint surfaces are replaced.
• It is generally used when arthritis affects multiple areas of the joint.
• It may be more suitable when there is widespread cartilage loss or significant deformity.

Which one is better?

Neither option is automatically better. The correct procedure depends on the pattern and extent of joint damage.

Dr. Atul Mishra evaluates X-rays, ligament condition, joint alignment, symptoms, and activity level before deciding whether partial or total replacement is appropriate.