Knee Joint Issues and Medication Concerns: Expert Insights - Orthopedics

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Knee joint issues can be quite complex, especially following injuries and surgeries. Based on your questions, I will address both concerns regarding your knee condition and medication interactions.

1. Knee Tightness and Incomplete Extension: After undergoing arthroscopic surgery to remove a fragment of cartilage, it is not uncommon to experience tightness or difficulty fully extending the knee. Several factors could contribute to this sensation:
- Scar Tissue Formation: Post-surgical healing often involves the formation of scar tissue, which can restrict movement. This is known as arthrofibrosis, where excessive scar tissue develops, leading to stiffness and reduced range of motion.


- Muscle Weakness or Imbalance: Following an injury or surgery, the muscles around the knee may weaken or become imbalanced. This can affect the knee's ability to extend fully. Rehabilitation exercises focusing on strengthening the quadriceps and hamstrings can help improve this condition.


- Residual Swelling: Even after the surgical site has healed, some residual swelling can persist, leading to a feeling of tightness. This can be exacerbated by activity levels or prolonged periods of immobility.


- Meniscal or Cartilage Damage: If there are additional issues with the meniscus or cartilage that were not addressed during the initial surgery, these could also contribute to ongoing symptoms.
It is advisable to consult with your orthopedic surgeon or a physical therapist who can assess your knee's range of motion and strength. They may recommend specific exercises or treatments, such as physical therapy, to help regain full function.

2. Medication Concerns: You mentioned taking "萬克適" (likely a brand name for a medication containing a non-steroidal anti-inflammatory drug, or NSAID) at a dosage of 60 mg per day and experiencing headaches. It is important to consider the following:
- NSAID Side Effects: Common side effects of NSAIDs include gastrointestinal discomfort, headaches, and dizziness. If you are experiencing persistent headaches, it may be worth discussing this with your healthcare provider, as they may suggest adjusting your dosage or switching to a different medication.


- Combining Medications: Regarding the use of "普拿疼" (which is likely acetaminophen or paracetamol), it is generally considered safe to take acetaminophen alongside NSAIDs, as they work through different mechanisms. However, it is crucial to adhere to the recommended dosages for both medications to avoid potential liver damage (from acetaminophen) or gastrointestinal issues (from NSAIDs). Always consult your healthcare provider before combining medications to ensure safety and efficacy based on your specific health profile.

In conclusion, addressing your knee tightness may require a combination of physical therapy and possibly further evaluation by your orthopedic specialist. Regarding medication, while combining NSAIDs with acetaminophen is typically safe, it is essential to monitor for any side effects and consult your healthcare provider for personalized advice. Regular follow-ups with your healthcare team will be key to managing your recovery effectively.