Hi I am 6 month post op TKR including a patella replacement as I did not have one pre op and 12 month post op having had my femur rotation so 35 deg to correct a previous surgery to fix 5 breaks of femur 40 years ago. I am now having quite severe knee cap tendon pain as well as an electric shock type pain in my shin when I fully bend my new knee. Could you please advise if this is normal, and will it settle down. My fear is that I will be left like this
Hi, Electric shock like pain in knee is associated with the knee tendon (qua Chat Doctor.  It is common post TKR if the rehab is not done properly I.e. post-operative you need to exercise your muscles to get used to the new biomechanics. Also, as you said you had a rotation in your femur which can add to the muscle overuse injury (faulty biomechanics of knee). For this it would be good if you consult a physical therapist for a good rehab program. Also till then you can do the following exercises (can search with the terms). You can use 500 GMS weight/Theravada knee press, knee flexors/Censorship rotators. Stretching of tensor fascia late Hip flexion/extension/abduction/adduction/rotation. Application of hot packs will help in muscle relaxation. Hope this helps. Let me know if I can assist you further.