Facet joint syndrome is very common diagnosis clinically in back pain clinic, but it really happen?

Severe lower back pain starting after a twist while lifting is often due to a locked facet joint.

The initially injury can occur earlier and then a gentle twist of the back such as turning in bed can cause the joint to lock causing severe pain. The pain is often worse on one side and usually causes more pain on leaning backwards as well as pain on leaning forwards. People who have this problem recurrently are said to have facet joint syndrome, a weakness of muscle control of the lower back causing the facet joints to lock from time to time. The pain is due to muscle spasm as the lower back muscles try and unlock the joint.(Quote from medical center web)

From my practice experence, Patient can completely recover by zak's deep and intensive acupuncture,without any unlock techniques. So I just wouder is it right name about facet joint syndrome locking?

What's your opinion?