Pelvis & Hip Pathology & Questions

Which bone does the acetabulum articulate with?

femoral head

What is the largest part of the hip bone?

ilium

What are the 3 divisions of the hip bone?

ilium, ischium and pubis

What are the two alternate names for hip bones?

ossa coxae and innominate bones

What is the smallest part of the hip bone?

pubis

Which bones make up the pelvis?

right and left hip bones, sacrum and coccyx

Metastatic Bone Cancer

Malignancy spreads to bone from primary tumor. Spine, pelvis, femur, ribs, and skull are common sites. Bone scan is used

Hip Fractures

Most common in elderly. Osteoporosis or avascular necrosis weakens the femur. Minimal trauma can cause a fracture

Pelvic Ring Fractures

Pelvis is a closed ring. Severe blow may cause fracture away from primary trauma. If you have one you most likely will have another

Where do the 3 parts of the hip bone fuse and when?

acetabulum, midteens

Legg-Calve-Perthes Disease

Aseptic necrosis of the hip, lack of blood supply to the bone. Most common in 5-10 year old boys

Chondrosarcoma

Cancer that affects cartilage cells. Second most common type of bone cancer. Most common in men over age 45

Developmental Dysplasia of Hip

Congenital dislocation of hip. Present at birth

Ankylosing Spondylitis

Known as "Bamboo Spine". Inflammatory disease causes vertebrae to fuse together. Usually first seen in SI joints

Avulsion Fx of Pelvis

Tendon has pulled away part of bone. Caused by force of tendons sliding over tuberosities, and ASIS. Most common in young athletes

Slipped Capital Femoral Epiphysis (SCFE)

Top of femoral head slips off, causes a widening of the epiphyseal plate. Usually affects 10-16 yrs. Needs surgical repair