Valgus knee: ↑ Q angle
Chondromalacia Patellae Syndrome specifically refers to softening of the patellofemoral cartilage.
Patellofemoral Pain Syndrome is defined as knee pain around or behind the patellar and it is aggravated by at least one activity that loads the patellar during weight bearing on a flexed knee.
Top left arthroscopy pic of cartilage wear. Top right surgery technique using microfracture. Healing (bottom right) with fibrocartilage