Knee surgeon



Is Postoperative Pain from Knee Replacement Surgery Severe?

Knee replacement surgery, or knee arthroplasty, represents a crucial step to improve the quality of life for those suffering from severe joint damage due to

3 de June de 2024
Written by:
Dr. Pablo Gelber

Knee replacement surgery, or knee arthroplasty, represents a crucial step to improve the quality of life for those suffering from severe joint damage due to conditions such as osteoarthritis. This procedure, while effective in reducing pain and restoring joint function, involves a postoperative period that can be challenging.

From Dr. Pablo Gelber‘s clinic, we explain in detail what to expect regarding postoperative pain following knee replacement surgery and effective strategies for managing it, thus ensuring a successful recovery and improved quality of life for patients.

What to Expect from Postoperative Pain?

After undergoing knee replacement surgery, it is common to experience pain at various stages of recovery. Immediately following the procedure, during the first 48 hours, the pain tends to be more intense due to inflammation and the recent surgical intervention. During this initial period, strong painkillers such as opioids and nonsteroidal anti-inflammatory drugs (NSAIDs) are often administered to alleviate acute discomfort.

As the first postoperative week progresses, the pain gradually begins to subside, although it can persist at significant levels. Initial physical therapy may cause additional discomfort due to mobilization and exercises, but it is essential for improving the range of motion and strength of the knee.

During weeks 2 to 6, the pain continues to decrease, and the need for pain medication usually diminishes. Intensive physical therapy is maintained to consolidate recovery progress.

By the second month, most patients experience a significant reduction in pain and improved knee function. Residual pain may occasionally occur, especially after physical activity, but it is usually manageable with over-the-counter painkillers and continued physical therapy.

Managing Postoperative Pain

Managing postoperative pain is critical and is addressed through various strategies. In addition to opioid and NSAID medications to reduce inflammation, other drugs such as gabapentin for neuropathic pain or anticoagulants to prevent blood clots may be used.

Physical therapy plays a fundamental role in rehabilitation, helping to reduce long-term pain and improve knee functionality through exercises specifically designed to strengthen muscles and increase flexibility.

In addition to pharmacological and physical therapy methods, techniques such as applying ice to reduce inflammation and using heat to relieve stiffness can be beneficial during different recovery phases.

Factors Influencing Postoperative Pain

The level of postoperative pain can vary depending on several factors:

  • Pre-surgery Health Status: The patient’s overall health condition and the severity of the joint disease before surgery.
  • Surgical Technique: The surgeon’s experience and the technique used can influence pain and recovery.
  • Adherence to Rehabilitation Plan: Strictly following the physical therapy plan and postoperative instructions.
  • Support and Care: Having a support network to assist with daily activities and provide encouragement can improve recovery.


Although the postoperative period of knee replacement surgery can be painful, especially in the first few weeks, proper pain management, diligent physical therapy, and appropriate postoperative care usually lead to a significant improvement in quality of life. It is essential to follow medical recommendations and maintain open communication with the healthcare team to adjust the treatment as necessary.

For those seeking personalized guidance on managing postoperative pain from knee replacement surgery, Dr. Pablo Gelber offers specialized consultations and comprehensive guidance to facilitate recovery.

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