<s>[INST] thankyou...I had total knee replacement in July this yr.  all has been going fine until about a wk. ago when i developed a terrific pain n the knee...causing aching down in the calf.  I went my  orthopedic Dr. after x-ray and he said i pulled a ligament...now i cannot bend the knee to get up with out severe pain and I cannot bend the knee back, like I have able to.  Is this tipical for pulled tendon?  There is nothing wrong with the prothesis. [/INST] HelloThanks for your thereafter going through your query I came to know that you got knee replacement. Now there is pain which can be due to muscle pull as said by your Doctor. It is most likely muscle pull. Treatment of muscle pull is rest and analgesic such as ibuprofen for pain relief. Another cause of such pain can be deep vein thrombosis which can be excluded by color Doppler ultrasound study of both lower limbs. You can discuss with your Doctor about it. Hope your query get answered. If you have any further questions then don't hesitate to writing to us. I will be happy to help you. You can also write to me directly on below link:https://www.bit.ly/ask Chat Doctor. Take care. </s>