Proper Care and Physical Therapy After Knee Replacement Surgery for Faster Recovery

Knee replacement surgery is recommended for patients with knee osteoarthritis who haven’t improved with non-surgical treatments.
Knee replacement surgery includes unicompartmental knee arthroplasty (UKA) and total knee arthroplasty (TKA). To choose a method, it depends on symptoms and the surgeon’s discretion.
Before surgery, complete health screenings, prepare your home environment as safely as possible, and arrange a caregiver for 1-2 weeks of recovery.
Post-surgery symptoms like pain, stiffness, or temporary numbness will improve with proper self-care and consistent physical therapy.
Start proper physical therapy exercises after knee surgery, such as ankle pumping and quadriceps strengthening, to restore movement.
Weight control and moderate walking exercises reduce knee joint pressure and accelerate recovery.
Avoid squatting, sitting cross-legged, climbing stairs, or lifting heavy objects during recovery.
Undergoing knee replacement surgery at kdms Hospital in Bangkok, Thailand, patients will meet with experienced orthopedic surgeons specializing in knee and hip arthroplasty. Patients receive comprehensive guidance through every treatment step to ease concerns. After knee replacement surgery, patients can rest assured they’ll perform proper physical therapy to restore full knee function.

Patients with knee osteoarthritis experience pain, stiffness, and discomfort in the knee joint that significantly impacts daily life. When conservative treatments or non-surgical approaches for knee osteoarthritis fail to provide relief, physicians recommend knee replacement surgery to alleviate these symptoms and restore normal function. Knee arthroplasty can be performed in two ways, depending on the patient’s condition and the surgeon’s discretion.

However, knee replacement is major surgery, requiring patients to follow proper post-operative care and physical therapy protocols. This ensures normal recovery, faster healing, and effective restoration of knee function after surgery.

Table of Contents

Why Is Knee Replacement Surgery Necessary?

Knee replacement surgery aims to treat knee pain caused by knee osteoarthritis — characterized by pain, discomfort, and stiffness that interferes with daily activities. When conservative treatments like weight control, muscle-strengthening exercises, and pain medication prove ineffective, doctors recommend knee replacement surgery. There are two types of knee replacement: Total Knee Arthroplasty (TKA) and Unicompartmental Knee Arthroplasty (UKA knee surgery).

Diagnosis Before Knee Replacement Surgery

After attempting non-surgical treatments for knee osteoarthritis — including pain medication, exercises, and weight control — and symptoms of pain, discomfort, and stiffness still persist, physicians will recommend knee replacement surgery as the most effective treatment to restore optimal knee function.

Preparing for Knee Replacement Surgery

An internist will conduct a general physical examination to assess surgical risk factors.
Laboratory tests are required, including blood work, chest X-rays, and electrocardiogram.
Physicians will review your current medications before proceeding with surgery
It’s necessary to prepare your home environment for recovery by removing obstacles from walkways and placing frequently used items at easily accessible heights
Arrange a caregiver for approximately 2 weeks post-surgery (UKA knee surgery may require less time)

Potential Complications After Knee Replacement Surgery

Post-operatively, patients typically experience common symptoms such as pain, stiffness, and numbness around the knee area. These symptoms gradually subside depending on proper self-care after knee replacement.

Apart from these common symptoms, serious complications beyond medical control can occur but at rare chances, such as prosthetic loosening (0.003%), infection risk (0.01%), and bone fracture (0.001%).

Self-Care After Knee Replacement Surgery

Proper self-care after knee replacement surgery includes:

Slow down daily activities to prevent impact on the surgical site
Maintain healthy body weight to avoid excessive joint stress
Wear compression stockings to reduce blood clot risk
Walk and exercise moderately—not so much that it causes pain, but not too little that it slows recovery
Consistently perform post-operative physical therapy. For UKA knee surgery, patients can do physical therapy at home. For TKA knee surgery, where patients experience more pain and difficulty bending the knee, physicians recommend professional physical therapy assistance.

Is Physical Therapy Necessary After Knee Replacement Surgery?

Physical therapy is an essential part of self-care after knee replacement surgery. It helps optimize the recovery process and enables faster restoration of knee function. Physicians recommend ankle pumping exercises in mornings and evenings:

Lie on your back and place a pillow under your leg to elevate it slightly
Flex your ankle up and down slowly, repeat the actions
Perform 10-20 repetitions per set
If you feel tightness around the surgical site or foot, stop immediately

In addition to ankle exercises, physicians recommend knee exercises using quadriceps muscle strengthening posture:

Lie flat on your back with legs fully extended
Tighten the thigh muscles on one leg and lift that leg, hold it for 5 seconds
Repeat the posture with the other leg
Alternate for 10 repetitions per set

Beyond these physical therapy exercises, physicians also recommend moderate walking exercises regularly — not too much that causes pain. If you experience tightness or pain at the surgical site, stop immediately.

Behaviors to Avoid After Knee Replacement Surgery

Avoid activities that risk falling. Physicians recommend using a walker for walking assistance to reduce accident risk.
Avoid postures with the knee bent, like sitting cross-legged, squatting, or kneeling.
Avoid frequent stair climbing
Avoid lifting heavy objects
During the first 2 weeks post-surgery, keep the surgical wound dry to reduce infection risk

The Perks of Undergoing Knee Replacement Surgery at kdms Hospital

kdms Hospital in Bangkok, Thailand, features experienced orthopedic surgeons specializing in unicompartmental knee arthroplasty (UKA knee surgery) who provide guidance through every treatment step, perform safe knee arthroplasty procedures, and offer comprehensive advice on post-operative self-care and proper physical therapy techniques to restore normal knee function after surgery.

In Summary

After knee replacement surgery, patients typically experience pain, stiffness, and numbness in the leg — common post-operative symptoms that gradually improve. Proper post-operative care includes following physical therapy exercises recommended by the doctor and avoiding overexertion for effective recovery. These practices also reduce risks such as inability to bend the knee post-surgery. Generally, physicians advise patients to slow down daily activities, maintain healthy weight, walk and exercise regularly, perform consistent physical therapy, and take precautions against falling by using a walker for walking assistance. With these measures, patients with knee osteoarthritis can return to normal life after knee replacement surgery.

An article by Prof. Boonchana Pongcharoen, M.D., Experienced Orthopedic Surgeon (Knee and Hip Replacement Surgery)