Pelvis and Hip

  • Gregory PereiraEmail author
  • Nikolaos K. Paschos
  • John D. KellyIV
Part of the Orthopaedic Study Guide Series book series (ORTHSTUDY)


The pelvis is formed by the two innominate bones that articulate posteriorly at the sacrum and anteriorly at the pubic symphysis. These attachments form the pelvic girdle, which links the axial skeleton to the lower extremities of the body. Each innominate bone is formed by the fusion of the ischium, ilium, and ischium that occurs during puberty. The fusion of these three bones forms cup-shaped, anteverted (15°) acetabulum that articulates with the head of the femur to form the diarthrodial hip joint.

Further Readings

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Gregory Pereira
    • 1
    Email author
  • Nikolaos K. Paschos
    • 1
    • 2
  • John D. KellyIV
    • 1
  1. 1.Department of Orthopedic SurgeryUniversity of PennsylvaniaPhiladelphiaUSA
  2. 2.Division of Sports Medicine, Department of Orthopaedic SurgeryBoston Children’s Hospital, Harvard Medical SchoolBostonUSA

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