Post-ACL Surgery: Pain and Swelling in the Knee - Orthopedics

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Post-operative issues following knee arthroscopy?


I underwent arthroscopic surgery for a meniscus tear two months ago.
I still experience pain while walking at times, and there is still swelling around the knee area, requiring aspiration of the fluid approximately once a week during outpatient visits.
Is this normal (fluid accumulation)? Additionally, what is the average recovery time for a meniscus tear?

Zhao, 30~39 year old female. Ask Date: 2002/08/09

Dr. Xie Tianjie reply Orthopedics


Knee arthroscopy is both a diagnostic and therapeutic tool that is currently widely used for knee injuries caused by trauma or sports-related injuries.
Treatment for meniscus tears depends on the location and extent of the tear, and may include repair, partial resection, among other methods.
Postoperatively, outpatient follow-up care is recommended.

Reply Date: 2002/08/09

More Info


Post-ACL surgery, experiencing pain and swelling in the knee can be a common concern for many patients. It is important to understand that the recovery process can vary significantly from person to person, depending on various factors such as the extent of the injury, the type of surgical procedure performed, and individual healing responses.

In your case, having undergone arthroscopic surgery for a meniscus tear two months ago, it is not unusual to still experience some pain and swelling. The presence of effusion (or "water" in the knee) is also a common post-operative symptom. This accumulation of fluid can occur due to several reasons, including inflammation, irritation of the joint lining, or even residual effects from the surgery itself. Regularly draining the fluid, as you mentioned doing weekly, can help alleviate discomfort and improve mobility, but it is essential to address the underlying causes of the effusion to promote long-term recovery.

Typically, after an ACL reconstruction and meniscus repair, patients can expect a recovery timeline that spans several months. While some individuals may start to feel significantly better within a few weeks, full recovery can take anywhere from six months to a year, depending on the severity of the initial injury and adherence to rehabilitation protocols. The average time to return to normal activities, including sports, is often around six to nine months, but this can vary widely.

During the recovery phase, it is crucial to engage in a structured rehabilitation program that focuses on restoring range of motion, strength, and stability to the knee. Physical therapy plays a vital role in this process, as it helps to reduce pain, improve function, and prevent complications such as stiffness or further injury. Your physical therapist can provide tailored exercises that accommodate your current level of pain and swelling while gradually increasing the intensity as you heal.

If you continue to experience significant pain or swelling despite appropriate management, it is advisable to consult with your orthopedic surgeon. They may recommend imaging studies, such as an MRI, to assess the status of the meniscus and other structures within the knee joint. In some cases, persistent effusion may indicate complications such as re-tearing of the meniscus, synovitis (inflammation of the joint lining), or other issues that may require further intervention.

In summary, while some pain and swelling are normal after ACL and meniscus surgery, it is essential to monitor your symptoms closely. Regular follow-ups with your healthcare provider, adherence to rehabilitation protocols, and open communication about your progress will be key to achieving a successful recovery. If you have any concerns about your symptoms or recovery timeline, do not hesitate to reach out to your medical team for guidance and support.

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