Here is an excerpt, but if you call Yonkers they should be able to provide you with real stats.:
Alternative Treatment Approaches Alternative approaches to treating osteosarcoma are being investigated. Charney is part of a team that has pioneered a limb-sparing CyberKnife® radiosurgery technique for dogs where amputation is not possible or desired. Combined with chemotherapy, this radiosurgery, also known as stereotactic surgery, has a survival time that is similar to the standard of care with amputation and chemotherapy for good candidates. Unfortunately, not all dogs are good candidates. The viability of radiosurgery is best assessed by a CT (computed tomography) scan. The benefit of radiosurgery is that it saves the limb.
"With this procedure, a radiation oncologist uses a high-tech, image-guided and computerized robotic control system to deliver radiation with submillimeter accuracy," Charney explains. "The CyberKnife radiation beams are sculpted to conform tightly to complex masses and deliver multiple radiation beams from many points outside the dog's body to the targeted tumor. The beams kill tumor cells yet spare healthy tissue. When the beams converge on the tumor mass, they deliver high-energy, pinpointed radiation with astounding power."
Compared to conventional radiation therapy, the precision of CyberKnife radiosurgery allows higher doses of radiation to be delivered to the tumor while minimizing damage to healthy tissue. One to three treatments are the same as 15 to 20 treatments of conventional radiation. The benefits include fewer hospital visits, fewer anesthetic episodes and reduced stress. Treatment is based on how much bone destruction has occurred
The procedure currently is available on a limited basis. Besides the Animal Specialty Clinic in New York, radiosurgery is performed at clinics in California, Colorado and Florida.