Hi Mukunda,
I have a new student with a history of knee trouble. She had torn cartilage in her left knee and had an operation 2 years ago. They left the tear but took out scar tissue. She has arthritis in her quad and patella. She also has “trouble” with her right knee. After light yoga practice both knees are sore. She is unable to put her right knee back in lunge because it causes her pain. Also her left knee hurts in extension on #4 of the joint freeing series. In #5 the left knee has pain when the knee is externally rotated. Her left knee has pain when it’s bent in janusirshasana after 20 secconds or so. In general it seems her knees hurt when her kneecaps are pulled up. She is very motivated to have a regular asana practice. Any insight into what can be done for her knees, and what should be given/avoided in her practice in general would be most helpful
thank you – BP