What is Knee Replacement?
Knee replacement (arthroplasty) is a surgical procedure that replaces damaged knee joint components with artificial parts (prostheses). The procedure aims to relieve pain and restore function in severely diseased knee joints.
When Is It Needed?
- Severe osteoarthritis
- Rheumatoid arthritis
- Post-traumatic arthritis
- Failed previous knee surgeries
- Severe knee deformity
Types of Knee Replacement
Total Knee Replacement (TKR)
- Replaces entire knee joint surfaces
- Most common type
- Typically lasts 15-20 years
Partial Knee Replacement
- Replaces only damaged portion
- Less invasive
- Faster recovery
The Procedure
-
Preparation
- Pre-operative testing
- Medical clearance
- Medication adjustments
-
Surgery
- General or spinal anesthesia
- 1-2 hours duration
- Removal of damaged surfaces
- Installation of prosthetic components
Recovery Process
Hospital Stay
- 1-3 days typical
- Pain management
- Initial physical therapy
Rehabilitation
- Physical therapy (6-12 weeks)
- Progressive exercises
- Gradual return to activities
Risks and Complications
- Infection
- Blood clots
- Implant problems
- Stiffness
Long-term Outlook
- 90-95% success rate
- Improved mobility
- Pain relief
- Return to daily activities
Post-Surgery Care
- Regular exercise
- Weight management
- Follow-up appointments
- Activity modifications
When to Contact Your Doctor
- Fever
- Excessive pain
- Wound problems
- Significant swelling