Myself Shehnaz.Patel is looking for braces for myhyperectention problem. I am a polio patient and have backward hyperextention around 20-30 degree. My knee size (circumfrance)is 13″. Can you please confirm if your product “Adjustable Pro Stabilizer Hinged Knee Brace by McDavid” will help me? Since I will be ordering the product via e-mail i need to know for sure that this product will fit me and help me.Awaiting your soonest response.Best Regards/Shehnaz.