Causes. Leg length discrepancies can be caused by poor alignment of the pelvis or simply because one leg is structurally longer than the other. Regardless of the reason, your body wants to be symmetrical and will do its best to compensate for the length difference.
Date of Onset. When the Social Security Administration (SSA) refers to a disability applicant's Date of Onset, they are referring to the date that a Social Security Disability applicant became disabled. When you fill out your Social Security Disability claim forms, you will be asked to provide the date your disability began.
The total amount of retroactive and/or back due benefits you receive can be impacted by your application date and waiting period. If you are eligible for Social Security disability benefits, there is a five month waiting period before SSA will begin your benefits. This means that your first benefit payment begins on the sixth month after the date SSA finds your disability began.