As an Advanced Proficiency Rated Activator Chiropractor, I have 29 adjustments for the knee.
In-other-words, in Activator, the Advanced doctors, who are the most highly trained, have 29 tests for misalignment or aberrance of the structures of the knee. This includes the osseous components (the bones) as well as soft tissue (muscles and their tendons which act on the knee).
We even have new adjustments for the medial and lateral meniscus, which, in my practice, I am finding very helpful for my chronic knee patients.