Knee joint replacement (also called knee arthroplasty) is a surgical procedure where the damaged bone and cartilage of the knee are removed and replaced with artificial parts. The new knee joint (prosthesis) usually has metal components attached to the ends of the thighbone (femur) and shinbone (tibia), with a high-density plastic insert replacing the worn cartilage. This artificial joint surface helps ease chronic pain and restore smoother movement in the knee as explained by Cleveland Clinic.
Dr. Deepthi Nandan Reddy – a senior consultant orthopedic surgeon with over 30 years of experience – specializes in knee replacement and other knee pain treatments as highlighted on Yashoda Hospitals. Patients appreciate Dr. Reddy’s clear explanations and caring approach: one recalls he “explained everything…in a very clear manner” and “took great care” of them during knee surgery on Dr. Reddy’s website.
Why You Might Need Knee Replacement Surgery
Knee replacements are often necessary to relieve severe pain and disability caused by arthritis or injury. In osteoarthritis, the cartilage cushioning the knee gradually wears away, causing painful bone-on-bone contact. Other conditions, like rheumatoid arthritis or traumatic injuries, can also lead to significant knee damage.
When nonsurgical treatments such as physical therapy, medications, or injections no longer relieve pain, knee replacement surgery may be recommended.
Types of Knee Replacement Procedures
Total Knee Replacement (TKR)
The surgeon resurfaces the entire knee joint, placing metal components on the femur and tibia and inserting a plastic spacer between them to restore smooth movement (Healthline).
Partial (Unicompartmental) Knee Replacement
Only the damaged section of the knee is replaced, preserving healthy bone and tissue, leading to quicker recovery (Healthline).
Minimally Invasive or Robotic-Assisted Procedures
Robotic technologies like Mako Robotic System allow for smaller incisions, more accurate alignment, and faster healing.
Revision Knee Replacement
Sometimes previous implants loosen or wear out over time, requiring revision surgery to restore joint function.
What to Expect Before, During, and After Surgery
Before Surgery
Dr. Reddy and his team will conduct evaluations including X-rays and MRIs, review medical history, and guide you through pre-surgical instructions. Preparing your home for a safe recovery—removing tripping hazards and setting up assistive devices—is also recommended.
During Surgery
Surgery takes about 1–2 hours under anesthesia. Damaged cartilage and bone are removed, and the prosthetic components are placed with precision. Advanced techniques ensure better alignment and stability (Cleveland Clinic).
After Surgery
Most patients start walking with assistance within a day. Dr. Reddy’s team ensures effective pain management, physiotherapy, and follow-up care to support recovery at every stage.
Recovery Timeline and Tips
- Week 1–2: Walk with crutches or a walker, begin gentle exercises, manage swelling with ice and elevation.
- Week 3–6: Increase walking distances; some patients walk without aids by 4 weeks (Healthline).
- Week 7–12: Resume daily activities, such as driving and light chores.
- Month 3 onwards: Engage in low-impact activities like walking, cycling, and swimming.
Tips for Smooth Recovery:
- Follow the rehabilitation plan diligently.
- Maintain a healthy diet.
- Keep the surgical site clean.
- Report any unusual symptoms promptly.
Risks and Benefits
Benefits
- Significant pain relief.
- Improved mobility and independence.
- Long-lasting results — about 90% of implants function well even after 15–20 years (Cleveland Clinic).
Risks
- Possible infection or blood clots (Mayo Clinic).
- Implant loosening over time.
- Residual stiffness or discomfort.
Dr. Reddy employs meticulous techniques and personalized care plans to minimize these risks.
Frequently Asked Questions
Q: How long does knee replacement surgery take? A: Knee replacement surgery typically takes about 1 to 2 hours to complete. After the procedure, you will spend some time in a recovery room where your vital signs are monitored. Depending on your recovery progress, you may either return home the same day or stay in the hospital for 1 to 3 days (Cleveland Clinic).
Q: When can I start walking or driving? A: Most patients start standing and walking with assistance within the first day after surgery. You may begin walking independently with a walker or cane within a few weeks. Driving is typically allowed around 4 to 6 weeks post-surgery, once you have regained sufficient knee strength and mobility and have discontinued strong pain medications (Healthline).
Q: How long will my knee replacement last? A: With proper care and maintaining a healthy lifestyle, modern knee implants can last between 15 to 20 years. Many patients enjoy decades of improved mobility and comfort after their knee replacement surgery (Cleveland Clinic).
Q: Will the surgery be painful? A: Some discomfort is expected after surgery, but it is managed effectively through medications, ice application, and physical therapy. The initial pain typically decreases within the first few weeks, and ongoing rehabilitation helps further reduce discomfort and improve mobility (Healthline).
Q: Will I need help at home? A: Yes, having a family member or caregiver assist you at home during the first few days is recommended. They can help with tasks like walking, bathing, and preparing meals while you regain your independence.
Q: What are alternatives before considering surgery? A: Before proceeding to surgery, options like physical therapy, weight management, anti-inflammatory medications, knee braces, and corticosteroid injections are explored. Dr. Reddy will thoroughly discuss non-surgical and surgical options to choose the best plan for you (OrthoInfo AAOS).Why Choose Dr. Deepthi Nandan Reddy?
- Experience: Over 30 years specializing in joint replacements.
- Advanced Training: Fellowship-trained in the UK and USA.
- Patient-Centric Care: Focused on personalized, compassionate treatment.
- Modern Techniques: Utilizes robotic-assisted technologies and minimally invasive methods.