...continuing radiation therapy with 4 more treatments to go out of 25. No side effects so far, except being tired. Have moderate to severe arthritis in lower back (lumbar 3-5) previously for 3 years or so. LMS is located in pelvis left side next to the psoas muscle close to my lower back. Pain in both areas enough for some mediation. No pain while sleeping or in a lounge chair. I've fallen several times in the last 10 weeks or so due to some pain and numbness in my left leg and with no consequences. I do use a 4-wheel walker. The biggest problem is trying to get up after falling. I am very pleased with the Kaiser system so far. My surgeon has a lot of experience with cancer patients. I've seen an oncologist, surgeon, my PCP, neurosurgeon, and pain specialists. In my opinion I am getting great care.