hi

he worked full time as painter and decorator and he climbs up and down stair and squats and kneels down . in the past when was playing squash he had suden onset of knee pain and he underwent athroscopy and part of his cartilage was removed.
his present complaint: before 4 months he was playing football for 20 minutes and when kick the ball the knee was sore but he was able to continue playing and in the next morning the knee was stiff and sore on the medial side of the knee and medial knee pain was increasing. before 2 months the anterior knee pain and giving away present. x-ray taken before 2 months showed mild degenerative changes in right knee.
I think that structure involved in
medail pain : menisci and bone
anterior pain: quadriceps muscle weakness( i was thinking that this pain can be refer to menisci tear but when they did the menisci test the medail pain presented but anterior pain did not)

can deep pain related to muscles??????
can you help be becaue i am really confused