This sure has a LOT to do with medical marijuana?
One of our Medics was diagnosed with Type II Glaucoma. He was placed on MM to allow the pressures in his eyes to be reduced. It worked, for about eight months. During the time, he couldn't work, and wasn't even fit for office work. He said that the MM messed his life up more than the Glaucoma. He's now 100% retired on disability, and blind.
MM isn't a very effective pain reliever. It may dull the pain, but even that is a transient condition. As with most inhaled substances, after a short period of time, you need more to achieve the same results.
The fact that the woman has scoliosis has nothing to do with the cancer, or the pain. The condition is a curvature of the spine. Only in the worst cases does this allow the pain causing arthritis to be debilitating.
For true pain relief in hospice cases, they usually prescribe morphine sulfate. It works, but leaves the patient nearly comatose. A valid point can be made for the use of Heroin during the end phase, as it allows the patient freedom from pain, and lucidity. Both are exquisitely addictive, but death has a way of curing that.
Hydrocodone and Oxycontin would both relieve the pain caused by the tumor. Both carry the risk of addiction, but are easily managed. Before you ask, my son is 38, and in the 4th year after being diagnosed with ALS. Prior to that, he had injured his shoulder, and was scheduled for surgery. The diagnosis rendered the surgery impractical, as rehab wouldn't have been effective. The constant pain has been relieved by Hydrocodone, with OXY as a back-up for the times when he is man-handled and his shoulder flares up badly. I was certified as a Maryland EMT-P for 10 years.