Total knee replacement (TKR) surgery is commonly performed to relieve severe pain caused by advanced osteoarthritis. Most patients experience significant improvement after this procedure.
However, it's not uncommon to ask the question, "Doctor, why does my knee still hurt after surgery?" Is this normal? When should I worry? Here's the explanation.
At EMC Pekayon Hospital Bekasi, post-knee surgery evaluations are carried out comprehensively by an Orthopedic Doctor specializing in hip & knee surgery.
Is Pain After Knee Replacement Surgery Normal?
The answer is: yes, to some extent, it's normal. After surgery, the body undergoes a tissue healing process that takes time. Mild to moderate pain in the first few weeks is part of that process.
Typically, the pain and swelling are still very noticeable during the first week. Then, over weeks 2–6, the pain gradually improves with the help of physiotherapy. After 3 months, most patients generally feel much more comfortable.
Although pain after surgery is normal, the type, frequency, and timing of pain also need to be considered because they can provide clues regarding post-operative health conditions.
Reasons Why Your Knee Still Hurts After Surgery
Some common causes include:
1. Tissue Healing Process
Surgery involves incisions in the skin, muscles, and joint capsule. Pain may arise from the healing soft tissues.
2. Muscle and Ligament Adaptation
After a joint replacement, the knee structure undergoes changes in alignment and ligament tension. The muscles need time to adjust.
3. Lack of Rehabilitation
Physiotherapy plays a crucial role in the success of surgery. Stiffness and pain can occur if exercises are not performed optimally.
4. Mild Post-Operative Inflammation
Mild swelling may persist for several weeks and cause discomfort.
When Should Pain Be Concerned?
While some pain is normal, there are some signs that require immediate medical attention:
- Pain gets worse after previously getting better
- Worsening swelling and redness
- Fever
- The surgical wound is discharging fluid
- Severe pain that does not improve with medication
This condition can lead to complications such as infection or mechanical problems with the implant, although these cases are relatively rare.
Can Implants Cause Problems?
Modern knee implants are designed to be stable and durable. However, in certain cases, persistent pain can be caused by:
- Soft tissue imbalance (ligament balancing issue)
- Alignment issues
- Joint infection
- Severe joint stiffness (arthrofibrosis)
- Pain from other sources such as the spine or pelvis
Therefore, evaluation by a hip & knee subspecialist is very important to determine the exact cause.
How Long Does It Take for Your Knees to Feel Really Comfortable?
Each patient's recovery process is different. Generally, mobility begins to improve within six weeks. After three months, the function of the operated knee becomes more stable. Optimal results are usually achieved between six months and one year after surgery. Patience and adherence to the rehabilitation program are key.
What Can Be Done If the Pain Remains?
If the pain is still felt, there are several steps that can be taken to identify and overcome the existing pain, including:
- Clinical evaluation and repeat x-rays
- Adjustment of physiotherapy program
- Anti-inflammatory drug therapy as indicated
- Laboratory tests if infection is suspected
- Evaluation of joint alignment and stability
Treatment must be tailored to the cause, not just addressing the symptoms.
The Importance of Routine Post-Operative Check-ups
Routine post-operative checkups are not just an evaluation measure; in certain circumstances, they can also be a preventative measure to control post-operative risks. Routine checkups allow doctors to:
- Ensure good implant position
- Assessing joint movement
- Identifying complications early
- Adjusting the rehabilitation program
This approach helps maximize long-term results and prevent further problems.
Post-Operative Knee Consultation in Bekasi
If you still experience pain after knee replacement surgery, don't panic. However, don't ignore persistent or worsening symptoms.
Undergo an evaluation with a hip and knee subspecialist. The primary goal of joint replacement surgery is to restore comfort and quality of life. A proper evaluation will help ensure the best possible outcome.
Article written by Dr. Othdeh Samuel, Sp.OT, FICS, Subsp PL (K), AIFO-K (Orthopedic & Traumatology Specialist, Hip & Knee Subspecialist, EMC Pekayon Hospital – Bekasi).