Knees are pretty neglected in psoriatic patients, which is supremely annoying and counter-productive considering how important knees are for mobility and quality of life.
My rheumatologist insists that my knee inflammation, pain and inflexibility is 'osteo' (wear & tear). I eventually persuaded him to authorise an X-ray of the worse knee, because I knew the last 'flare up' I had came on far too quickly to be osteo - it felt inflammatory. The X-ray happened 10 weeks ago and he still hasn't looked at it.
I do physio, which helps a bit, but my NHS physio is also frustrated not knowing exactly what type of damage and disease she's working with. Sigh.