Hello. I had a bilateral fusion performed this summer. My right side was done in June and my left was done in August. I have the ifuse implants, two in each si joint. My left side feels good. I'd say it's about 90% there and keeps feeling better. My right side, however, is still hurting - a lot. A CT scan showed my bone was not closing around one of the implants and I've been wearing a bone growth stimulator for three months now. I had a horrible flare up that began last week and resulted in another scan. In addition to the lack of bone growth, the lower implant is also not as far into the joint as originally thought. My surgeon is looking into two possible options: a third ifuse implant placed below the other two and inserting it at steeper angle or a new procedure called the SImmetry implant from Zyga Technologies. He's getting back to me in a week with more details, but has anyone had this procedure, or know anyone who has? There is very little that I can find. I'm interested because it is supposed to be weight-bearing immediately after surgery. Has anyone gone back in fsor another ifuse. I'm interested in any info or similar experiences. My other fear is that I may have to put it off because of benefits at work. I can't lose my job or step down to a lower position, but I'm worried about what putting the surgery off might do. I apologize if this is scattered, but I'm very upset by all of this and I don't have anyone else to go to with this. Thanks for all of your time.