What should I do if there is fluid accumulation in the knee after patellar surgery?

Under normal circumstances, knee effusion after patellar surgery may be caused by physiological factors or pathological factors such as wound infection or traumatic arthritis. Targeted treatments can be applied according to the specific cause. The detailed analysis is as follows:

I. Physiological Factors

After patellar surgery, local trauma may lead to a small amount of joint effusion, which is a normal physiological phenomenon and generally does not require special treatment. It is recommended to rest adequately, avoid overexertion, and refrain from strenuous physical activities.

II. Pathological Factors

1. Wound Infection

If proper wound care is not maintained after surgery, wound infection may occur, triggering an inflammatory response and exudation of inflammatory substances. The affected area commonly presents symptoms such as itching, redness, swelling, and pain. Under a doctor's guidance, medications such as amoxicillin capsules, cefixime dispersible tablets, or other antibiotics may be used for treatment.

2. Traumatic Arthritis

If the patellar injury is severe, it may lead to traumatic arthritis. Inflammatory stimulation can increase synovial fluid secretion, resulting in knee effusion. Under medical supervision, medications such as acetaminophen tablets, ibuprofen sustained-release tablets, or naproxen tablets may be prescribed for management.

Besides the above-mentioned causes, knee effusion could also result from conditions such as synovitis, osteoarthritis, or synovial plica syndrome. If discomfort occurs in the knee, it is advisable to seek timely medical consultation at a hospital and receive standardized treatment under the guidance of a qualified physician.