Hip Replacement vs Knee Replacement: What's the Difference?

If you or a loved one has been advised to consider joint replacement surgery, you may be wondering, what exactly is the difference between hip replacement and knee replacement? Both procedures have transformed the lives of millions of people suffering from severe arthritis and joint damage. At Orthomed Hospital Hisar, we perform both procedures with exceptional outcomes. Here is a clear guide to help you understand what each surgery involves.

What Is Hip Replacement Surgery?

In a hip replacement (total hip arthroplasty), the damaged ball-and-socket hip joint is replaced with an artificial implant. The surgeon removes the worn-out femoral head (ball) and replaces it with a metal or ceramic ball, while also resurfacing the acetabulum (socket) with a smooth plastic or metal lining.

Hip replacement is most commonly performed for osteoarthritis, rheumatoid arthritis, hip fractures, and avascular necrosis (bone death due to poor blood supply).

What Is Knee Replacement Surgery?

In a knee replacement (total knee arthroplasty), the damaged surfaces of the knee joint—including the ends of the thighbone (femur), shinbone (tibia), and kneecap (patella)—are resurfaced with metal and plastic implants. The surgery restores the natural alignment of the leg and eliminates bone-on-bone friction.

Knee replacement is typically recommended for severe osteoarthritis, rheumatoid arthritis, post-traumatic arthritis, and significant deformity of the knee.

Key Differences Between Hip and Knee Replacement

While both are joint replacement surgeries, there are important differences:

• Pain profile: Hip arthritis typically causes groin pain and difficulty with walking and bending, while knee arthritis causes pain directly in and around the knee, especially on stairs. 
• Surgery complexity: Knee replacement involves more precise alignment of the joint surfaces, making it technically more complex in some cases. 
• Recovery: Hip replacement patients often recover slightly faster in terms of mobility, while knee replacement requires more intensive physiotherapy to restore full range of motion. 
• Robotic assistance: At Orthomed Hospital Hisar, robotic-assisted technology is used for greater precision in both hip and knee replacement procedures.

What Does Recovery Look Like?

For both procedures, most patients begin walking with support within 24 hours of surgery. Full recovery takes 6 to 12 weeks for most daily activities and 3 to 6 months to return to more demanding physical activities. Physiotherapy is essential in both cases to strengthen the muscles around the new joint and restore normal movement.

How Long Do the Implants Last?

Modern implants used at Orthomed Hospital Hisar are designed to last 15 to 25 years or more, depending on the patient’s activity level, weight, and adherence to post-operative guidelines. Revision surgery (replacing a worn implant) is also available at our center if needed in the future.

Whether you need a hip or knee replacement, Orthomed Hospital Hisar offers world-class surgical expertise, advanced implants, and comprehensive post-operative care. Contact us today to schedule a consultation and find out which procedure is right for you.