What causes pain in knees?
Patient: I had a knee replacement 5 years ago. Within the last 2 months, I have started having intermittent pain and swelling in the joint. Sometimes it feels like something is catching in the left lateral aspect of the knee. I can press on the spot, when it is flared up and cause moderate pain. Any quesses? Doctor: Hello,  As post knee replacement this pain is common to arise due to change in the normal biomechanics of the joint and the gait cycle. This is all due to the weakness of the knee Muscles post knee replacement.  I will advise doing exercises like - static hamstring, static Quadriceps, ankle toe movements, straight leg raise, etc to improve the muscle strength and correction of the biomechanics of the knee joint. The gait also needs to be assessed and the muscles which are found weak needs correction. You should be fine with conservative management.  Hope I have answered your query. Let me know if I can assist you further.  Regards, Jay Indravadan Patel, Physical Therapist or Physiotherapist