TY - CHAP M1 - Book, Section TI - Chapter 8. Imaging of the Pelvis and Hip A1 - Malone, Terry R. A1 - Hazle, Charles A1 - Grey, Michael L. PY - 2008 T2 - Imaging in Rehabilitation AB - Within the scope of this chapter, the sacrum, innominates (including the acetabulum), and proximal femur are discussed. Features of the proximal femur are of particular interest because their frequent pathologic involvement. The femoral head comprises approximately two-thirds of a sphere with an orientation medially, superiorly, and anteriorly to articulate with the acetabulum. The surface of the femoral head is covered with articular cartilage with the exception of the fovea. The cartilage is thickest centrally and is slightly attenuated peripherally; the fovea is devoid of articular cartilage. Connecting the head and the shaft of the femur is the neck extending inferolaterally. The femoral neck has considerable variability in morphology and forms an angle of approximately 130 degrees with the femoral diaphysis, which is an important angle of reference (Greenspan, 2000; DeLaMora and Gilbert, 2002). Surrounding the femoral neck are the circumflex arteries, which give rise to much of the blood supply to the femoral head. From the medial femoral circumflex artery arises the lateral epiphyseal artery, which provides the majority blood supply to the femoral head. The other important vessels are the inferior metaphyseal artery from the lateral femoral circumflex and the medial epiphyseal artery of the ligamentum teres (DeLaMora and Gilbert, 2002). SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/10/15 UR - accessphysiotherapy.mhmedical.com/content.aspx?aid=5941057 ER -