Using a med/sci search engine [scirus] was able to locate only 44 references on this strontium therapy. Appears that this is still a relatively new treatment as it doesn't have very much information from the patient's perspective.
Here's all that the Dana Farber center has on it: http://www.dana-farber.org/pat/adult....asp#strontium
Something else that you may want to read up on is hyperbaric treatment - as an adjuvant therapy. The rationale for this is that since bone tissue is very difficult to treat with meds, hyperbaric [1.5 to 2.5 atmospheres pressure] helps improve infiltration/ penetration of the med to the appropriate site. Hyperbaric was originally used for treating 'the bends', and has since been studied for treatment of severe burns, deep bone pain, avascular necrosis and other bone and deep tissue diseases.
Here's some background on hyperbaric which is currently in NIH clinical trials for another condition: http://clinicaltrials.gov/ct/gui/sho...878BAC?order=1
Another suggestion is OPG. An Internet acquaintance with severe transplant complications including excruciating deep bone pain and advanced osteoporosis used OPG with some good results. No idea whether the underlying biochem problem is the same in your case, however ... OPG [osteoprotegerin] and OPGL [osteoprotegerin ligand] are two recently discovered compounds involved in the mechanism by which osteoblasts and stromal cells regulate osteoclastic differentiation and function and mediate the effects exerted by other hormones and cytokines. Basically, once bone metabolism is regulated and bone tissue rebuilt, pain is no longer a problem.