Ota - Orthopedics - Acetabular Fractures (Ny!)

Front 1

Acetabulum:
- top of the acetabulum is made up of os ilium
- is made up of body of the three pelvic bones
- os pubis makes up half of the acetabular cup
- in childhood it is made up of os ilium and ischii only

Back 1

Acetabulum:
- top of the acetabulum is made up of os ilium+
- is made up of body of the three pelvic bones+

Front 2

Lunate surface of the acetabulum:
- is covered with articular cartilage
- is much thicker in cranial part
- pulvinar of the acetabulum is situated around lunate surface
- articular cartilage is much thicker in distal part

Back 2

Lunate surface of the acetabulum:
- is covered with articular cartilage+
- is much thicker in cranial part+

Front 3

Position of the acetabulum:
- directs externally, down and forward
- inclination of the acetabulum is approximately 45 degrees
- acetabular cup and frontal plane form the right angle in childhood
- anteversion of the acetabulum cup is more than 70 degrees

Back 3

Position of the acetabulum:
- directs externally, down and forward+
- inclination of the acetabulum is approximately 45 degrees+

Front 4

X-ray examination of the acetabular fractures:
- Letournel’s projection complement classical AP view
- affected side is displaced from the ground by obturator oblique view
- Letournel’s projection includes „inlet and outlet view“
- AP projectionis performed in 90 degrees flection in hip joint

Back 4

X-ray examination of the acetabular fractures:
- Letournel’s projection complement classical AP view+
- affected side is displaced from the ground by obturator oblique view+

Front 5

Posterior column of the acetabulum:
- is easily evaluated by the iliac projection
- is more massive than anterior column
- its X-ray view is not important for diagnosis of acetabular fractures
- treatment of its fracture is only conservative

Back 5

Posterior column of the acetabulum:
- is easily evaluated by the iliac projection+
- is more massive than anterior column+

Front 6

Letournel’s classification:
- divides fractures of the acetabulum in simple and combined
- fractures of both column are among simple fractures
- fracture of the posterior wall is rarer than fracture of the anterior wall
- T-fractures are example of combined fractures

Back 6

Letournel’s classification:
- divides fractures of the acetabulum in simple and combined+
- T-fractures are example of combined fractures+

Front 7

Treatment after osteosynthesis of acetabular fractures:
- early verticalization with minimalization the weight on the affected extremity
- after plating fixation is possible full weighting on the affected extremity
- early verticalization is prevention of thromboembolic disease
- six weeks in bed is always required

Back 7

Treatment after osteosynthesis of acetabular fractures:
- early verticalization with minimalization the weight on the affected extremity+
- early verticalization is prevention of thromboembolic disease+

Front 8

Consequences after acetabular fractures:
- higher risk of earlier arthritis
- no enhanced risk of aseptic necrosis of femoral head
- late problems are possible to solve by total hip replacement
- no arthritis after osteosynthesis of acetabular fractures

Back 8

Consequences after acetabular fractures:
- higher risk of earlier arthritis+
- late problems are possible to solve by total hip replacement+

Front 9

Central dislocation of acetabular fracture:
- there is no injury of the sciatic nerve
- has a poor prognosis
- accompanied by retroperitoneum bleeding
- never requires a total hip replacement

Back 9

Central dislocation of acetabular fracture:
- has a poor prognosis+
- accompanied by retroperitoneum bleeding +

Front 10

Fracture of posterior wall of the acetabulum:
- the most frequent type of acetabular fracture
- we mostly choose surgically way of treatment
- never injured articular surface of the acetabulum
- we mostly choose conservative way of treatment

Back 10

Fracture of posterior wall of the acetabulum:
- the most frequent type of acetabular fracture+
- we mostly choose surgically way of treatment+

Front 11

Osteosynthesis of acetabular fractures is made:
- by using various types of plates
- by using lags crews
- by using absorbable material
- only by using of transfixation with Kirschner´s wires

Back 11

Osteosynthesis of acetabular fractures is made:
- by using various types of plates+
- by using lags crews+

Front 12

Injury of sciatic nerve is caused:
- by iatrogenic injury in posterior surgical approach
- by current fracture of upper part of pubic bone
- by dislocation of fragments of posterior column
- no injury of the sciatic nerve occurs in acetabular fractures

Back 12

Injury of sciatic nerve is caused:
- by iatrogenic injury in posterior surgical approach+
- by dislocation of fragments of posterior column+

Front 13

X-ray examination of posterior wall of the acetabulum:
- patient lies on the unaffected side of the body
- CT examination is indicated
- dislocation of femoral head in fracture of posterior wall can be seen only on CT
- X-ray of pelvis is necessary to make

Back 13

X-ray examination of posterior wall of the acetabulum:
- CT examination is indicated+
- X-ray of pelvis is necessary to make+

Front 14

Fracture of posterior column of the acetabulum:
- relatively rare
- usually connected with hip dislocation dorsally
- vasa glutea superiora cannot be affected
- after reposition of femoral head is not necessary fixation of posterior column

Back 14

Fracture of posterior column of the acetabulum:
- relatively rare+
- usually connected with hip dislocation dorsally+

Front 15

Fractures of anterior wall of the acetabulum:
- rarer than fracture of posterior wall
- the same frequency as fracture of posterior wall
- occurs in older patients with osteoporosis
- always rises as high-energy trauma

Back 15

Fractures of anterior wall of the acetabulum:
- rarer than fracture of posterior wall+
- occurs in older patients with osteoporosis+