Are osteoporosis and cppd related? My lumbar spine t-score is -3.2 and I recently had a bad episode of cppd at base of thumb.

Not directly. The only way i can see a direct connection is that patients with cppd may be treated with a steroid to decrease inflammation and that could lower bone density if steroids are used on a constant basis. I would get treatment for your osteoporosis and treatment for your cppd.