515 - 2A Pelvis

​What kind of clinic would you like to go to on your OJT?

And today's question is... ?

Objectives:

1. Be capable of taking diagnostic pelvis/hip radiographs
2. Identify pelvic bone anatomy
3. Understand use of OFA and PennHip radiographs

Pelvic Radiographs

Slide 11-15

Review!

Multiple Choice

What is another name for the hip joint?

• Pelvic joint
• Femoral joint
• Coxofemoral joint
• Stifle joint

Labeling

Label the bones/ joints of the pelvis!

Drag labels to their correct position on the image

Pubis

Pubic symphysis

ilium

Sacrum

Sacroiliac joint

Acetabulum

ischium

Multiple Choice

What bones are in the pelvis?

• Humerus, radius, ulna, femur
• Skull, mandible, clavicle, scapula
• Tibia, fibula, patella, vertebrae
• Ilium, ischium, pubis, sacrum.

Multiple Choice

The ischium, pubis, and ilium all meet at the...

• femur
• tibia
• acetabulum
• humerus

Labeling

Label the blue, black, and red asterisk with the correct label.

Drag labels to their correct position on the image

Patella

Obturator foramen

Greater Trochanter of the femur

Slide 30-39

Review!

Multiple Choice

What are the standard pelvic radiographic views in veterinary medicine?

• ventrodorsal (VD) and lateral views.

• ventral and dorsal views
• lateral and cranial-caudal views
• dorsoventral (DV) and oblique views

Multiple Choice

Sedation is required for proper positioning for diagnostic pelvic rads.

• True

• False

Multiple Select

What can be evaluated with pelvic radiographs in veterinary medicine?

Select 4 that apply!

• Hip dysplasia

• Neoplasia

• Fractures

• Abdominal organs
• Arthritis

Multiple Choice

How should canine patients be positioned for a lateral pelvic x-ray?

• Position the dog in lateral recumbency with the affected side down.
• Position the dog in sternal recumbency with the affected side down.
• Position the dog standing on all fours for the x-ray.
• Position the dog in lateral recumbency with the affected side up.

Multiple Choice

If a dog is limping on his left hind leg, and the veterinarian requests 2-view pelvis rads under sedation, what two views should we take?

• Ventrodorsal and right lateral

• Ventrodorsal and left lateral

• Dorsoventral and right lateral

• VD Frogleg and left lateral

Multiple Choice

When positioning a canine patient for a lateral pelvic radiograph, how should the hind limbs be positioned?

• Cross the hind limbs over each other.
• Slightly scissored so limb touching table is cranial to the opposite leg

• Bend the hind limbs at the knees and tuck them under the body.
• Position the hind limbs straight out to the sides.

Multiple Choice

What are the Cranial, Caudal, and Lateral margins of a VD pelvis extended for a dog?

• Cranial: iliac wings;

  Caudal: distal patella;

  Lateral: lateral aspects of both femurs

• Cranial: ischium;

  Caudal: sacrum

  Lateral: lateral aspects of both femurs

• Cranial margin: Acetabulum;

  Caudal margin: pelvis;

  Lateral margins: spine.

• Cranial margin: sternum; Caudal margin: tibia; Lateral margins: patella.

Drag and Drop

When evaluating a VD Pelvis for rotation, the following should be symmetrical:

The ​

Placeholder

of ilium​.

Lateral edges of ischium overlapping the ​

Placeholder

.

The​

Placeholder

foramen​.

The ​

Placeholder

tuberosities.

Drag these tiles and drop them in the correct blank above

wings

femur

obturator

ischial

Multiple Choice

How is a feline patient positioned for a VD Pelvis Frogleg?

• In dorsal recumbency with legs crossed.

• In ventral recumbency with legs straight.

• In lateral recumbency with legs extended.

• In dorsal recumbency with hind legs naturally flexed.

Match

Match the following

VD Pelvis Frogleg

VD Pelvis Extended

Lateral Pelvis

Lateral turtle

VD snake

• VD Pelvis Frogleg

• VD Pelvis Extended

• Lateral Pelvis

• Lateral turtle

• VD snake

Slide 48-53

Review!

Drag and Drop

Hip dysplasia is a​

Placeholder

abnormality that results in the ​

Placeholder

of the ​

Placeholder

joint.

Drag these tiles and drop them in the correct blank above

genetic

malformation

hip

congenital

stifle

Multiple Choice

What are two options for specialty evaluation for hip x-rays for dogs?

• OVA and gabaPENtin

• CT scan and ultrasound
• PennHIP and OFA evaluations.
• X-ray and MRI evaluations

Multiple Choice

OFA stands for...

• Office of Feline Assessment

• Old Fart Animals

• Orthopedic Foundation for Animals

• Orthopedic Federal Administration

Fill in the Blanks

For official evaluation of hips for hip dysplasia, the patient must be over

months of age.

Multiple Choice

What radiograph(s) must be submitted for OFA hips?

• Two lateral pelvis radiographs.

• VD Frogleg

• One VD pelvis extended.

• Distracted, compressed, and VD Extended

Multiple Choice

What radiograph(s) must be submitted for PennHIP?

• Two lateral pelvis radiographs.

• VD Frogleg

• One VD pelvis extended.

• Distracted, compressed, and VD Extended

Slide 48-53

Pelvis Review

Multiple Choice

How does foreshortening occur when taking a pelvic x-ray on a dog?

• When the x-ray beam explodes.

• When the x-ray film is too close to the pelvis.

• When the limb is at an angle to the x-ray sensor.

• Due to the dog's age and health condition.

Multiple Choice

A dog comes in with pain in the left hip. What side is he laying on when taking a lateral radiograph of the hindlimb to determine what is wrong?

• Back side
• Front side
• Left side
• Right side

Multiple Choice

When taking a lateral pelvic radiograph of a dog, how are the back legs positioned?

• The back legs are raised above the body.
• Limbs are perpendicular to each other and the heads of the femurs are parallel.

• Limbs in scissor position with bottom leg cranial and top caudal. Head of femurs stacked​.

• The back legs are tucked under the body.

Dropdown

When taking a VD pelvic radiograph, what are the margins needed within the collimated field of view?

Cranial: ​

Select answer

Caudal/distal: ​

Select answer

​

Lateral: ​ ​

Select answer

Multiple Choice

Compressed, Distracted and Hip extended are 3 types of hip radiographs needed for what evaluation?

• OFA

• PennHIP

Multiple Choice

Which specialty hip evaluation looks at both hip joint quality and hip laxity?

• OFA

• PennHIP

Labeling

Label the pelvis anatomy

Drag labels to their correct position on the image

Head of femur

Greater trochanter of femur

Obturator foramen

Ischium

Sacroiliac joint

Acetabulum

Femur

Wing of ilium

Patella

Draw

Draw your best VD Pelvis extended.