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.
In this case, the earliest that you can become eligible for Medicare is one year after you apply for Social Security disability. But for disability applicants who apply for benefits only when they become disabled, and not before, the date that their Medicare coverage will start is more likely to be two years and five months after they apply for disability.