THR (Total Hip Replacement) and TKR (Total Knee Replacement) are two of the most common orthopedic surgeries for treating severe arthritis or joint damage. Both procedures involve replacing damaged joint surfaces with prosthetic components, but the surgical techniques, recovery timelines, and joint functions differ significantly.
Total Hip Replacement (THR)—also known as Total Hip Arthroplasty—is a surgical procedure where the damaged parts of the hip joint are replaced with artificial components. It’s primarily performed to relieve pain and restore mobility in people with severe hip arthritis or joint damage.
Total Knee Replacement (TKR)—also called Total Knee Arthroplasty—is a surgical procedure in which damaged cartilage and bone in the knee joint are removed and replaced with artificial components. It’s primarily done for patients with severe arthritis or joint damage that limits daily activities and doesn’t respond to conservative treatments.
Benefits
-
- Long-term pain relief
- Improved knee function and alignment
- Enhanced quality of life
- High success rate (over 90% still functioning after 15–20 years)
Implant Materials
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- Femoral Head: Ceramic or metal
- Acetabular Liner: Polyethylene (plastic), ceramic, or metal
- Fixation: Cemented or cementless (based on age and bone quality)
| Feature |
THR |
TKR |
| Joint Involved |
Hip (ball-and-socket) |
Knee (hinge-like) |
| Recovery Time |
3–6 months |
6–12 months |
| Mobility Outcome |
More natural movement |
May feel mechanical |
| Pain Relief |
Excellent |
Excellent |
| Activity Restrictions |
Some hip motion limitations |
Usually none after rehab |
| Common Complications |
Dislocation |
Stiffness, scar tissue |
