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.
However, either amount may be affected by the five-month waiting period that applies to SSDI claims. If Social Security accepts an applicantâs alleged onset date and it becomes the established onset date, then back payments and/or retroactive payments will apply beginning five months after the onset date.