What is a twisted pelvis and how does one end up with one? A “twisted pelvis” is a three dimensional mechanical dysfunction. It can happen as a result of trauma, pregnancy and delivery or simple muscle imbalance. It is a very common problem and is often the underlying cause of low back pain, mid back pain and neck pain. It can also cause structural damage and degeneration throughout the spine.
When the pelvis twists out of normal alignment the right side of the pelvis, or right innominate, rotates forward or anteriorly, due to a tight, short iliopsoas muscle. The left side of the pelvis (or innominate) rotates backwards, or posteriorly, as a result of a tight, short quadratus lumborum muscle. These rotations can also cause the pelvis to move abnormally inward or outwardly. When the innominate rotates abnormally, the acetabulum, the cup portion of your hip joint, moves up or down (superiorly or inferiorly). When this happens, the head of the femur follows it and creates a short or long leg. The functional leg length discrepancy which can develop as a result of an unstable, twisted pelvis is frequently misdiagnosed as an actual leg length discrepancy. One does not want to where a lift in ones shoe to correct this functional leg length discrepancy as it only helps to support and hold the pelvis in a dysfunctional position.