If you're experiencing persistent swelling, pain, and thickening of the muscles two years after a platysmaplasty procedure, it's important to consult with your surgeon or a qualified medical professional who can evaluate your specific situation and provide appropriate advice. In some cases, an infection or ongoing inflammation can cause persistent symptoms. It's important to rule out any underlying infections or inflammatory conditions that may be contributing to your symptoms. Excessive scar tissue formation or the development of fibrosis could also potentially lead to ongoing swelling, pain, and thickening of the muscles. Nerves in the area could be irritated or damaged during the surgery, which may lead to ongoing pain and muscle dysfunction. It's also possible that the platysmaplasty procedure may have resulted in muscle imbalances or abnormalities, leading to ongoing symptoms. Treatment options for your condition will depend on the underlying cause. It's crucial to consult with your surgeon or seek a second opinion from another qualified medical professional. They will be able to assess your specific situation, perform any necessary examinations or tests, and provide appropriate recommendations for further evaluation or treatment. I hope this helps, best of luck !