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