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Total Knee Replacement: A Complete Guide to the Procedure, Risks, and Recovery

Health | 26 August, 2025

Knee pain can make everyday activities like walking, climbing stairs, or even getting up from a chair difficult. When medications, physiotherapy, and lifestyle changes no longer provide relief, doctors may recommend Total Knee Replacement (TKR). This surgical procedure can significantly improve mobility, reduce pain, and help you get back to a more active life.

In this blog, we will explain what Total Knee Replacement is, how the procedure works, its types, possible complications, and what recovery looks like.


What is Total Knee Replacement?

Total Knee Replacement surgery, also called total knee arthroplasty, is a medical procedure in which damaged parts of the knee joint are replaced with artificial components. These artificial parts, known as implants or prostheses, are usually made from metal alloys, ceramics, or high-grade plastics. The goal of TKR surgery is to recreate the natural movement of your knee and remove the pain caused by arthritis, injury, or degenerative diseases.

When is Total Knee Replacement Needed?

Doctors recommend a Total Knee Replacement procedure when:

  1. Severe osteoarthritis has worn away the cartilage, causing bones to rub against each other.
  2. Pain persists despite medication, injections, or physical therapy.
  3. The knee joint is significantly deformed.
  4. Injuries or previous surgeries have damaged the knee beyond repair.

If these symptoms affect your quality of life, an orthopaedic surgeon in Pune or elsewhere might suggest surgery after a thorough evaluation.

Types of Total Knee Replacement

Not all knee replacements are the same. There are different approaches depending on the extent of joint damage. The types of TKR include:

  1. Conventional Total Knee Replacement: The most common type where the entire knee joint is replaced with artificial components.
  2. Minimally Invasive Total Knee Replacement: Involves smaller incisions, leading to potentially faster recovery and less post-operative pain.
  3. Custom Knee Replacement: Uses advanced imaging to design implants that perfectly fit your anatomy.
  4. Computer-Assisted or Robotic Knee Replacement: Technology helps surgeons achieve more precise placement of implants.

The Total Knee Replacement Procedure

Here’s a step-by-step breakdown of what happens during the surgery:

  1. Preparation: You will be given anaesthesia, either general (you’re asleep) or spinal (numbing the lower body). Then, the surgical site is cleaned and sterilised.
  2. Incision: The surgeon makes an incision over the knee to access the joint.
  3. Removing Damaged Tissue: The worn-out cartilage and bone are carefully removed.
  4. Placing the Implant: Artificial components are attached to the thigh bone (femur) and shin bone (tibia), sometimes also to the kneecap (patella).
  5. Testing and Closure: The surgeon checks the knee’s movement before closing the incision with sutures or staples.

Total Knee Replacement Complications

Like any surgery, TKR carries some risks. Possible complications include:

  • Infection at the surgical site or deep within the joint
  • Blood clots in the legs or lungs
  • Implant loosening or wear over time
  • Persistent pain or stiffness
  • Nerve or blood vessel injury (rare)

Choosing a reputed orthopaedic hospital in Pimpri Pune and following post-surgery care instructions can greatly reduce these risks.

Recovery and Rehabilitation

Total Knee Replacement rehab is as important as the surgery itself. Recovery usually involves:

  1. Early Mobilisation: You will start moving the knee within 24 hours after surgery, often with the help of a physiotherapist.
  2. Physiotherapy: Exercises to strengthen muscles and restore flexibility. You can gradually increase your walking and daily activities.
  3. Pain Management: Medications, ice packs, and rest help manage post-operative discomfort.
  4. Lifestyle Adjustments: Avoid high-impact activities like running; instead, focus on low-impact exercises like swimming or cycling.

On average, most patients can resume normal activities within 6–12 weeks, though full recovery can take up to 6 months.

Tips for a Successful Total Knee Replacement Recovery

Here are tips for a successful TKR recovery:

  1. Follow your exercise plan strictly. It's key to regaining movement.
  2. Maintain a healthy weight to reduce stress on the new joint.
  3. Attend all follow-up appointments to monitor healing and implant condition.
  4. Eat a nutrient-rich diet to speed up tissue repair.

When to Call Your Doctor After Surgery

Contact your doctor immediately if you notice:

  • High fever or chills
  • Severe swelling or redness around the knee
  • Sudden, sharp pain in the calf (possible sign of blood clots)
  • Difficulty breathing

Final Thoughts

A Total Knee Replacement can be life-changing for people with severe knee problems. Understanding the Total Knee Replacement procedure, knowing the different types of Total Knee Replacement, and being aware of potential complications can help you make informed decisions.

Frequently Asked Questions (FAQs)

1. How long does a total knee replacement take?

Usually 1–3 hours, depending on the type of surgery and extent of damage. For instance, minimally invasive techniques can shorten the procedure.

2. What is the latest knee replacement technique?

Minimally invasive knee replacement is the newest technique. It uses the same implants as traditional surgery but involves smaller incisions and less tissue cutting.

3. What’s the toughest part of knee replacement recovery?

The first week is the toughest. That’s because swelling, inflammation, and pain are most intense during this period.

4. How long do you stay in the hospital after knee replacement?

Typically 1–3 days, with physiotherapy guidance before discharge to aid recovery and mobility.