The pelvis contains how many bones?
4 bones:
2 hip
sacrum
coccyx
The hip bone is often referred to as
os coxae or innominate bone
These colums are used to identify fractures around the acetabulum
iliopubic column
ilioishial column
The body of the ilium forms approximately what percentage of the acetabulum superiorly
two-fifths
The body of the pubis forms approximately what percentage of the acetabulum anteriorly
one-fifth
The body of the ischium forms approximately what percentage of the acetabulum anteriorly
two-fifths
The greater pelvis is also called the
False Pelvis
This indintation is just below the ischial spine
lesser sciatic notch
The pubis consists of
body
superior ramus
inferior ramus
The ischium consists of
body
ischial ramus
The ala has three borders
anterior, posterior, and superior
The anterior and posterior borders of the ala present four prominent projections
Anterior superior iliac spine
Anterior inferior iliac spine
Posterior superior iliac spine
Posterior inferior iliac spine
the hip joint is this type of synovial joint
synovial ball-and-socket
Characteristics of the female pelvis
wide, shallow
light
oval
What boney structure can not be palpated
Ischial spine
Characteristics of the male pelvis
Narrow, deep
Heavy
Round
What is used as an important and frequently used radiiographic referencing point
ASIS
How many degrees should the feer and lower limbs be internally rotated for an AP pelvis radiograph
15-20 degrees
The strongest bone in the body
femur
How many degrees is the lower limb and foot rotated for an AP Hip
15-20 degrees
The ilia articulate with the sacrum posteriorly at the
scaroilliac jpint
This is the largest foreman in the skeletal system
Orburator foreman
What is parallel to the IR in a properly positioned AP Hip projection
the femoral neck
The two large processes on the femur
greater trochanter
lesser trochanter
The longitudinal plane of the femur is angled how many degrees from vertical
10 degrees
Gonadal shielding of the male patient for AP Pelvis radiography requires that the shield not extend above the level of the
inferior margin of the pubis
The central ray for an AP Pelvis enters
2 inches superior to the pubic symphysis
The central ray for an AP hip enters
Perpendicular to the femoral neck
2 1/2 inches distal on a line drawn perpendicular to the midpoint of a line between ASIS and pubic symphysis
The feet are placed this face apart for an AP Pelvis
8-10 inches
The central ray for a modified Cleaves method enters
Perpendicular to enter the patient's midsagittal plane at the level 1 inch superior to the pubic symphysis
The neck of the femur projects anteriorly at approximately this angle
15-20 degrees
The sacroilliac joint is this type of joint
Synovial, irregular gliding (synovial fibrous joint)
The Pubic symphysis is this type of joint
Cartiliaginious, Symphysis
Ankylosing spondylitis
Rheumatoid arthritis variant involving the SI joints and spine
Congential hip dysplasia
Malformation of the acetabulum causing displacement of the femoral head
Dislocation
Displacement of a bone from the joint space
Fracture
Disruption in the continuity of bone
Legg-Calve-Perthes disease
Flattening of the femoral head owing to vascular interruption
Metastases
Transfer of a cancerous lesion from one area to another
Osteoarthritis or degenerative joint disease
Form of arthritis marked by progressive cartiliage deterioration in synovial joints and vertebrae
Osteopetrosis
Increased density of atypically soft bone
Osteoporosis
Loss of bone density
Paget disease
Thick, soft bone marked by bowing and fractures
Slipped epiphysis
Proximal portion of the femur is dislocated from the distal portion at the proximal epiphysis
Tumor
New tissue growth where cell proliferation is uncontrolled
Chondrosarcoma
Malignant tumor arising from cartilage cells
Multiple myeloma
Malignant neoplasm of plasm cells involving the bone marrow and causing destruction of the bone
This size of IR is used in an AP Pelvis projection
14x17 crosswise
Danelius-Miller method
Acetabulum: AP Oblique Projection-
Judet Method
A. Iliac crest
B. Anterior superior iliac spine
C. Anterior inferior iliac spine
D. Acetabulum
E. Ischium
F. Obturator foramen
G. Ilium (or the ala of the ilium)
H. Auricular surface
I. Posterior superior iliac spine
J. Posterior inferior iliac spine
K. I
A. Posterior superior iliac spine
B. Posterior inferior iliac spine
C. Greater sciatic notch
D. Ischial tuberosity
E. Lesser sciatic notch
F. Ischial tuberosity
G. Ischium
H. Ischial ramus
I. Ilium (or the ala of the ilium)
J. Iliac crest
K. Anterior supe
A. Greater Trochanter
B. Neck
C. Head
D. Lesser trochanter
E. Body
F. Fovea capitis
G. Intertrochanteric crest
A. Iliac crest
B. Anterior superior iliac spine (ASIS)
C. Ischial spine
D. Greater trochanter
E. Lesser trochanter
F. Inferior ramus of pubis
G. Pubic symphysis
H. Oburator foramen
I. Ischium
J. Acetabulum
K. Sacrum
L. Sacroiliac (SI) joints
M. Ala
AP Pelvis
AP Hip
Hip: Axiolateral Projection-
Danelius-Miller Method
IR is parallel with femoral neck
Medially rotate the foot and limb of the affected side about 15 or 20 degrees.
Elevate the pelvis to center of IR, use sandbags for immobilization of the limb or firm pillows to raise the unaffected side. Use a vertical IR
AP Oblique - Modified Cleaves Method
Unilateral AP Oblique Femoral Neck-
Modified Cleaves Method
A. Greater Trochanter
B. Neck
C. Head
D. Lesser trochanter
E. Body
F. Fovea capitis
G. Intertrochanteric crest
A. Greater Trochanter
B. Neck
C. Head
D. Lesser trochanter
E. Body
F. Fovea capitis
G. Intertrochanteric crest
Hip: Lateral Projection- mediolateral Lauenstein and Hickey Methods
Which bones form the acetabulum
Ischium, pubis, and ilium
The proper name of the method used for the unilateral frog-leg projection is the
Modified Cleaves
The amount of abduction of the femurs recommended for an AP bilateral frog-leg projection
45 degrees