Radiology Packet 21

1
Radiology Packet 21

• Pelvis

2
5 yr old F Russian BlueJessie

• HX Chronic intermittent lameness of the right
  hind leg progressing to temporary loss of use of
  both hind legs one day prior to presentation

3
5 yr old F Russian BlueJessie

• RF
• The acetabulae are shallow.
• Minor osteophyte production is present at the
  dorsocranial margin of the acetabulum
  bilaterally.
• The femoral necks are slightly thick and the
  femoral heads are flattened.
• RD
• Bilateral hip dyplasia with secondary DJD

4
10 mo female Silky Terrier

• HX One month lameness of left hind leg, also
  hip pain is palpable

5
10 mo female Silky Terrier

• RF
• The left femoral head is markedly misshapen and
  the femoral neck is thickened considerably.
• The subchondral bone of the acetabulum is
  sclerotic and thickened and the joint space is
  wider than the right side.
• RD
• Avascular necrosis of the femoral head
  (Legg-Calves-Perthes disease)
• Next
• Surgery

6
2 yr old MC DSHLambert

• HX presented for evaluation of abnormal gait of
  the hind limbs

7
2 yr old MC DSHLambert

• RF
• There is a fracture of the left femoral neck at
  the level of the physis (capital physeal
  fracture).
• There is a roughened and indistinct appearance to
  the femoral neck at the level of the fracture.
• A linear lucency at the level of the physis and
  extending laterally into the femoral neck on the
  right can be seen on careful evaluation.
• RD
• Fracture of the left capital femoral physis
• Suspected fracture of the right femoral physis
• Next
• Reduction and surgical stabilization of the
  capital physeal fracture.

8
1 yr old Mix breed dogBo

• HX Audible clicking in hips when playing with
  other dogs, palpable laxity and pain on
  manipulation of both coxofemoral joints, mild to
  moderate crepitation of both coxofemoral joints

9
1 yr old Mix breed dogBo

• RF
• There is severe bilateral coxofemoral
  subluxation.
• Both femoral necks are thickened and there is a
  roughened appearance to the femoral neck
  dorsally.
• A subtle linear line is seen extending form
  proximal to distal at the lateral aspect of the
  femoral neck, this is called Morgans line and
  is often the earliest radiographic change seen in
  dogs with hip dysplasia.
• RD
• Severe bilateral hip dysplasia with mild
  secondary osteoarthritis

10
6 yr old FS Lab RetrieverFoxy

• HX Foxy has been lame on the LH for
  approximately 6 weeks and there is palpable
  laxity in the left stifle

11
6 yr old FS Lab RetrieverFoxy

• RF
• Markedly decreased coverage of the right femoral
  head by the acetabulum.
• Severe osteoarthritis is present in the joint.
• RD
• Bilateral hip dysplasia with secondary DJD

12
9 mo old F Lab RetrieverEmie

• HX Trauma approximately 2 months ago at which
  time a fracture of the pelvis was diagnosed, the
  dog has been lame since that time and left hip
  luxation was recently diagnosed. Owners want to
  know if this is congenital or due to the trauma
  as they had planned to breed Emie

13
9 mo old F Lab RetrieverEmie

• RF
• There is luxation of the left coxofemoral joint.
• The acetabulum is shallow and there is remodeling
  of the cranial acetabular margin.
• The left femoral head is flattened and the
  femoral neck is thickened.
• Osteophyte formation is present at the margin of
  the articular cartilage of the femoral head.
• There is mal-alignment at the caudal margin of
  the right sacroiliac joint which is the right
  pelvic fracture that was described in the
  history.
• RD
• Hid dysplasia

14
8 mo old F HimalayanTucker

• HX appears to be a defect in the lumbar and
  caudal spine

15
8 mo old F HimalayanTucker

• RF
• Severe bilateral coxofemoral subluxation.
• The acetabular cups are very shallow.
• The femoral necks appear short and more
  vertically oriented than normal.
• Both femoral necks are slightly thickened.
• RD
• Severe bilateral hip dysplasia