Thanks for your query
I have gone through your query and understand your concern. It is likely that your tendon repair is tight. It is likely that you have not exercises well during postoperative period. You can do stretching exercises of knee joint for mobilisation it. You need to clinical examination for further assessment.
Hope your query get answered.
Wishing you a good health.
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.