Treating Quadratus Femoris - Stuart Hinds     Trigger Points in the Quadratus Femoris typically appear together  with other Trigger Points in the immediate area, including the hip, and the pelvic floor This small muscle helps to rotate the hip sideways. When the hip is flexed, it helps move the hip and thigh away from midline. The quadratus femoris is one of the short lateral rotator core muscles, which interact with dysfunctions of L4 through S3 vertebrae. Movement is the best indicator as to which lateral rotator is involved. This muscle may stick to the underlying obturator externus.      ...