Knee Replacement

Knee replacement surgery is one of the most successful and commonly performed orthopedic procedures, helping patients with severe knee damage regain mobility and get back to activities that chronic pain had made difficult or impossible. Understanding what the procedure and recovery actually involve helps set the right expectations going in.

When knee replacement is recommended

Knee replacement is typically recommended after conservative treatments — physical therapy, anti-inflammatory medication, weight management, and sometimes injections — haven't adequately relieved pain from conditions like osteoarthritis, rheumatoid arthritis, or significant joint injury. The deciding factor is usually how much pain is limiting daily function, walking, and sleep, rather than X-ray severity alone.

Partial versus total knee replacement

1. Total knee replacement: replaces all three compartments of the knee joint and is the more common procedure, appropriate for damage spread across the joint
2. Partial knee replacement: replaces only the damaged compartment when arthritis is limited to one area, generally involving a smaller incision and potentially faster initial recovery for well-selected candidates

Your surgeon will determine which approach fits based on imaging showing exactly where and how extensively the joint is damaged.

What the procedure involves

During surgery, damaged cartilage and bone are removed and replaced with metal and plastic components designed to replicate natural knee movement. The procedure typically takes one to two hours, performed under general or spinal anesthesia depending on your specific case and preference.

The recovery journey

Recovery from knee replacement is more demanding than many patients initially expect, largely because physical therapy participation directly determines the outcome:

1. Most patients begin walking with assistance the day of or day after surgery
2. Hospital stay is typically one to three days
3. Physical therapy starts almost immediately and continues intensively for several weeks — this is genuinely the most important factor in regaining full range of motion
4. Most patients return to daily activities within six weeks, though full recovery and maximum strength typically take three to six months

Patients who commit consistently to their physical therapy program generally see meaningfully better range of motion and function than those who don't — this is one area where the effort you put in directly shapes the outcome.

Managing expectations around pain and swelling

Some swelling and discomfort during the first few months is normal and expected as the joint heals and adjusts, though this should steadily improve rather than worsen. Persistent or increasing pain beyond the expected recovery window is worth discussing with your surgeon rather than assuming it will resolve on its own.

Talking through your options

Our orthopedic specialists can review your imaging, discuss whether replacement is the right next step for your specific situation, and explain what recovery would realistically look like for you — along with a transparent cost estimate.