I gost got another series of SYNVIC joint fluid injections for my knees. So far the last two times I've gotten about1.5 years and it works for me. The orthopedic surgeon said if they don't work this time, I could try an orthopedic unloader before I gp for a new knee. Have any of you guys had any + or - experiences with thes devices. I understand that every is different. Thanks, mark s.