Why does the knee still hurt 3 months after knee replacement surgery?

Apr 24, 2023 Source: Cainiu Health

Dr. Lin Yunfei

Introduction

Pain three months after knee replacement may be caused by improper prosthesis positioning, surgical trauma, or infection, and could also be related to factors such as knee joint adhesions. It is important to seek prompt medical evaluation at a正规 hospital to determine the underlying cause and receive appropriate treatment, such as X-ray or MRI examinations. In daily life, adequate rest should be maintained and strenuous activities avoided, as these may impair recovery.

Pain three months after knee replacement surgery may be caused by improper prosthesis positioning, surgical trauma, or infection. The specific analysis is as follows:

1. Improper Prosthesis Positioning

If the prosthesis is improperly positioned or placed at an incorrect angle, it may lead to symptoms such as pain three months after knee replacement surgery. Common manifestations include local redness, swelling, aching, and pain. In such cases, repositioning or readjustment of the prosthesis usually resolves the issue.

2. Surgical Trauma

Knee replacement surgery is considered highly invasive. Postoperative pain—either early or long-term—is common due to tissue damage during the procedure. As tissues gradually heal, pain typically subsides. Since the surgery involves incisions in the skin, subcutaneous tissues, joint capsule, and removal of diseased tissues, postoperative pain is generally normal and not a cause for excessive concern.

3. Infection

Infections occurring within three months after knee replacement are classified as early infections. Symptoms include joint pain, swelling, and loosening of the prosthesis. If infection is suspected, treatment under medical guidance with antibiotics such as roxithromycin capsules or amoxicillin capsules is recommended.

In addition to the above causes, pain may also be related to knee joint adhesions. It is advisable to seek prompt evaluation at a qualified hospital to determine the underlying cause through diagnostic tests such as X-rays or MRI. Adequate rest should be maintained, and strenuous activities should be avoided, as these may impair recovery.

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Still experiencing numbness and pain two weeks after knee replacement surgery

In general, numbness and pain two weeks after knee replacement surgery may be a normal postoperative reaction, but could also be caused by factors such as wound infection or nerve damage. In addition, it might be related to venous thrombosis, loosening of the knee prosthesis, or implant dislocation. Patients experiencing these symptoms should promptly seek evaluation at a正规 hospital.

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Sudden knee pain eight years after knee replacement

In general, sudden knee pain eight years after knee replacement may be caused by implant loosening, infection, arthritis, or other factors. In addition, it could also be related to knee fractures, diabetes, and similar conditions. Patients experiencing such symptoms should promptly seek evaluation at a正规 medical facility for proper diagnosis and appropriate treatment to prevent the condition from worsening.

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Best exercise timing after knee replacement

There is no single optimal treatment duration after knee replacement surgery; typically, it takes about 2 to 3 weeks, but the exact period should be determined based on the severity of the condition. Exercise can effectively prevent complications and promote recovery. In addition, exercise should be moderate at the beginning. During exercise, it's important to keep the area warm, maintain wound cleanliness and hygiene, and avoid infections.

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How is knee replacement surgery performed in a 70-year-old patient?

Knee replacement surgery is a common procedure for treating knee joint diseases. For 70-year-old elderly patients, the decision to undergo knee replacement surgery should be based on an evaluation of the patient's overall health condition and preoperative病情 (condition). This surgery is generally carried out in five steps. In summary, knee replacement surgery in 70-year-old patients is relatively complex.