Femur and Pelvic Girdle Flashcards
Four bones of the pelvis
left hip
right hip
coccyx
sacrum
3 divisions of the hip bone
ilium
ishium
pubis
Innominate bone is another name for
- one half of the pelvic girdle
- hip bone
-ossa caxae
What is the largest foramen in the body?
Obturator Foramen
Which landmark is not a palpable bony landmark?
Lesser trochanter
2 aspects of the ishium?
body
ramus
False pelvis
- supports the lower abdominal organs
- formed primarily by the ala of the ilium
- greater pelvis
True pelvis
- lesser pelvis
- cavity
- forms the actual birth canal
- found below the pelvic brim
the angle of the pubic arch on an average male pelvis
acute
the angle of the pubic arch on an average female pelvis
obtuse
radiographic characteristics of the male pelvis
- heart shaped inlet
- acute pubic arch
- iliac wings are less flared
radiographic characteristics of the female pelvis
- iliac wings are more flared
- obtuse pubic arch
- larger and more rounded inlet
of these structures, which is most posterior?
- ischial spines
- ASIS
- symphysis pubis
- acetabulum
ischial spines
the small depression near the center of the femoral head where a ligament is attached is called …
fovea capitis
which joints are synovial joints with amphiarthrodial mobility?
SI joint
what device should be used for an axiolateral (inferosuperior) projection of the hip to equalize density (brightness) of the hip region?
wedge compensating filter
a geriatric pt with an externally rotated lower limb may have
a fractured proximal femur
what pathologic indications may result in the early fusion of the SI joints
ankylosing spondylitis
Radiographic appearances of
Pelvic ring fracture
bilateral radiolucent lines across bones and misalignment of SI joints
radiographic appearances of
DDH
increased hip joint space and misalignment
radiographic appearances of
Osteoarthritis
hallmark sign of spurring and narrowing of joint space
radiographic appearances of
SCFE
epiphyses appear shorter and epiphyseal plate wider
radiographic appearances of
Ankylosing Spondylitis
early fusion of SI joints and “bamboo spine”
radiographic appearances of
Metastatic Carcinoma
usually consists of numerous small lytic lesions
what radiographic sign indicates that the proximal femurs are in position for a true AP projection?
limited visibility of the lesser trochanter in profile
another term for the outlet of the true pelvis
inferior aperture
an externally rotated foot is the typical physical sign of a possible _____
hip fracture
Bilateral modified Cleaves method is used for
evaluating a pediatric pt for congenital hip dislocation
CR for an AP axial for outlet (Taylor method) for a male pt.?
20-35 cephalad
how much is the pelvis and/or thorax rotated for a PA axial oblique (Teufel method) for acetabulum?
35-40 towards affected side
CR angle required for the PA axial oblique (Teufel method) for acetabulum?
12 cephalad
unilateral frog-leg is for
nontraumatic hip
CR angle for Judet method?
None. CR is perpendicular
AP axial projection used to _
evaluate the pelvic inlet for possible f/x
Clements-Nakayama method is used for __
trauma lateral hip
centering for AP pelvis projection
midway between the ASIS and symphysis
Pt enters the ED having sustained trauma to the pelvis (left hip pain). What should be the first image?
AP Pelvis
The hip joint is a _____ joint.
Synovial Ball and Socket