Procedure 3: Unit 1 Pelvis

How many degrees is the medial condyle off of the lateral condyle?

5-7

What is the structure on the femoral head that ligaments attach to the acetabulum?

Fovea capitis

The intertrochanteric crest is on which side of the proximal femur?

Posterior

The intertrochanteric line is on which side of the femur?

Anterior

Which proximal structure is located at the same level of the PS?

Greater trochanter

The pelvis is made up of which bones?

2 hip bones, sacrum, coccyx

The pelvic girdle is made up of which bones?

2 hip bones (Ilium, ischium, pubis)

Identify the type of joint and tissue type: Hip joint

Synovial diarthrotic ball and socket (freely movable)

Identify the type of joint and tissue type: PS

Cartilaginous amphiarthrotic symphysis (slightly movable)

Identify the type of joint and tissue type: SI joint

Synovial diarthrotic gliding (slightly movable)

Which bone is the ASIS and AIIS located?

Ilium

Which bone is the PSIS and the PIIS located?

Ilium

Which bone is the greater sciatic notch located?

Ilium

Which bone is the lesser sciatic notch located?

Ischium

Which bones make up the acetabulum?

Ilium, ischium, and pubis

Which bones make up the obturator foramen?

Ischium and pubis

Which bone do we sit on?

Ischial tuberosity

The superior and inferior ramus is located on which bone?

Pubis

Write Out How to Locate the femoral neck

(1.) Draw a line from the ASIS to PS (2.) Make a perpendicular line on the midway point (3.) 1.5" = femoral head (4.) 2.5" = femoral neck

Identify the following characteristics of a female verses a male pelvis: Round inlet

Male

Identify the following characteristics of a female verses a male pelvis: Oval inlet

Female

Identify the following characteristics of a female verses a male pelvis: Heavier

Male

Identify the following characteristics of a female verses a male pelvis: Lighter

Female

Identify the following characteristics of a female verses a male pelvis: Wider outlet

Female

Identify the following characteristics of a female verses a male pelvis: Narrow outlet

Male

Identify the following characteristics of a female verses a male pelvis: Shallow

Female

Identify the following characteristics of a female verses a male pelvis: Deep

Male

Inlet: measuring anterior to posterior

sacral promontory to the superior margin of the PS

Inlet: measuring medial to lateral

brim to brim

Outlet: measuring anterior to posterior

Tip of coccyx to the inferior margin of the PS

Outlet: measuring medial to lateral

ischial tuberosity to ischial tuberosity

The greater pelvis is AKA as the ______ pelvis

false

The lesser pelvis is AKA as the ______ pelvis

true

List the palpable landmarks of the pelvis

IC, ASIS, PS, greater trochanter, ischial tuberosity, and tip of the coccyx

Name the projection

AP pelvis

Name the position

Supine

Where is the top of the IR placed

1-1.5" above IC

Where does the CR enter

MSP and 2" below ASIS or 2" above PS

How many degrees are the femurs rotated internally

15-20 degrees

Which structure should not be seen

Lesser trochanter

Which structure determines rotation

Obturator foramen

Name this special type of pelvis X-ray

Orthopedic device // low pelvis

Where is the top of the IR located

ASIS or even lower depending on the length of the patient's scar

Why is this type of projection performed

to see orthopedic device

Where is the marker placed

up in ic

Name the projection

AP oblique

Name the position

Supine with Bilateral frog leg position (feet touching)

How many degrees are the femurs abducted for this image

25-45 degrees

Where does the CR enter for this projection

1" superior to SP and MSP

Why is this projection performed

Performed for hip dysplasia (kids) and mobility (adults)

If this is a unilateral oblique of the hip, how many degrees is the leg abducted

45

If this is a lateral projection of the hip, how many degrees is the leg abducted

45

What is the range of abduction for a lateral projection of the hip?

45-90

Where does the CR enter for this projection

Perpendicular to femoral neck

Name the projection (lateral hip)

Lauenstein

How do you know this is a lateral Lauenstein

90 degrees

When is this projection performed

When pt. can abduct 90 degrees (no fracture)

What structure is seen in profile

acetabulum and prox. Femur; lesser trochanter

Name the projection

Danny miller (axiolateral)

Why is this projection performed

Fractured hip

Where is the top of the IR placed for this projection

Placed along the affected leg near Iliac crest

What structure is seen in profile

lesser trochanter/ischial tuberosity

Name this projection

Clements Nakayama

When is this projection performed

Both hips fractured

How many degrees is top of the IR tilted posteriorly?

15 degrees

How many degrees is the tube angled and toward which direction?

15 degrees posterior

CR enters

Directed 15 degrees posteriorly and aligned perpendicular to the femoral neck and the grid IR

Name the projection

AP hip (proximal femur)

How many degrees is the hip internally rotated (take this as an AP hip, not proximal femur)?

15-20

Which structures are seen in profile?

Greater trochanter and femoral neck

Which structure should not be seen?

Lesser trochanter

CR enters

femoral neck

Name the projection

AP oblique pelvis (Judet Method)

Name the position

LPO

How many degrees is the hip/pt. rotated?

45

Which hip is demonstrating the posterior rim?

Right

CR enters?

2" inferior to ASIS to both sides; at PS of one hip

Which hip is demonstrating the anterior rim?

Left

Name the projection

AP oblique pelvis (Judet Method)

Name the position

RPO

How many degrees is it rotated?

45 degrees

Which hip is demonstrating the posterior rim?

Left

Which hip is demonstrating the anterior rim?

Anterior

Name the projection

AP axial projection (Taylor Method)

What is the tube angle and towards which direction for males?

20-35 cephalic (outlet)

What is the tube angle and towards which direction for females?

30-45 cephalic

Where does the CR enter?

2" inferior to the top of the PS and MSP

What is this image demonstrating?

Outlet

Name the projection

AP axial (bridgeman method)

What is the tube angle and towards which direction?

40 caudad at ASIS (down and in)

Where does the CR enter?

At ASIS and MSP

What is this image demonstrating?

Brim to brim // Inlet

Name the projection

AP proximal femur

Where is the top of the IR placed?

ASIS (S1/S2)

How many degrees is the structure rotated?

10-15 internally

Which structures are in profile?

Greater trochanter

Name the projection

AP distal femur

Where is the bottom of the IR placed?

2" below knee joint

Which structures are placed parallel to the IR?

Epicondyles and patella

Where does the CR enter?

Mid femur