CALCANEUM FRACTURES

CALCANEUM FRACTURES

Q. 1

Bohler’s angle is decreased in fracture of

 A

Calcaneum

 B

Talus

 C

Navicular

 D

Cuboid

Q. 1

Bohler’s angle is decreased in fracture of

 A

Calcaneum

 B

Talus

 C

Navicular

 D

Cuboid

Ans. A

Explanation:

 

Calcaneum 1Ref. Apley’s 8/e, p 750-75]; Ebnezar Orthopedics 3/e, p 263-264; Maheshwari 3/e, p 1401

  •  Bohler’s angle (also k/a Tuber joint angle) measures the angular relationship between talus and calcanecum.
  • Flattening of this angle is a classic x-ray sign of depressed fracture of calcaneum.
  •  Other angle which is of importance in calcaneal fracture is    Crucial angle of “Gissane”
  • More about calcaneal 
  • Calcaneum is the most commonly fractured tarsal bone
  • In 5-10 % of cases is bilateral
  • ·                            Most common mechanism of injury is fall front height, often from a ladder, onto one or both heels. The calcaneum is driven up against the talus and is split or crushed. About one fifth of these patients suffer associated injuries of the spine, pelvis or hip.
  • ·                           Also k/a loveri fracture’
  • ·                            Plain x-rays done for calcaneal fracture include lateral, oblique and axial views, Axial view of calcaneum is also k/a Hans view.
  • ·                            CT is the inv. of choice
  • ·                            With severe injuries and especially with bilateral fractures – it is essential to x-ray the knees, the spine and the pelvis as well

Other angles of importance

Cobb’s angle                                        –         Scoliosis                               (Apley’s 8/e, p 377; Maheshwari 3/e, p 235)

Kite’s angle                                          –         CTEV                                   (Apley’s 8/e, p 489; Maheshwari 3/e, p 196)

Meary’s angle                                      _> Pes cavus (plantaris (Apley’s 8/e, p 497)

deformity)

Hilgenreiner’s epiphyseal angle                  Congenital coxa vera        (Apley’s 8/e, p 420)

Baurnann’s angle                                          Supra condylar                   (Apley’s 8/e, p 597)

 

C

alcaneum 1Ref. Apley’s 8/e, p 750-75]; Ebnezar Orthopedics 3/e, p 263-264; Maheshwari 3/e, p 1401

·                        Bohler’s angle (also k/a Tuber joint angle) measures the angular relationship between talus and calcanecum.


Q. 2

In which type of fracture, the tuber-joint angle is reduced to about half

 A Crush fracture of calcaneum

 B Fracture neck of humerus

 C

Dislocation of shoulder

 D

Spilt fracture of calcaneum

Ans. A

Explanation:

A i.e. Crush fracture of calcaneum


Q. 3

Gissane’s angle in intraarticular fracture of calcaneum :

 A

Reduced

 B

Increased

 C

Not changed

 D

Variable

Ans. B

Explanation:

B i.e. Increased


Q. 4

Calcaneum is associated most commonly with which#

 A

# rib

 B

# vertebrae

 C

# skull

 D

# fibula

Ans. B

Explanation:

B i.e. Vertebral


Q. 5

Bohler’s angle is used in fracture of ‑

 A

Scaphoid

 B

Talus

 C

Calcaneum

 D

Navicular

Ans. C

Explanation:

Ans. is ‘c’ i.e., Calcaneum

The Angle of Gissane, or “Critical Angle”, is the angle formed by the downward and upward slopes of the calcaneal superior surface. On a lateral radiograph, an angle of Gissane of > 130° suggests fracture of the posterior subtalar joint surface.

Bohler’s angle, or “Tuber Angle”, is another normal anatomic landmark seen in lateral radiographs. It is formed by the intersection of (1) a line from the highest point of the posterior articular facet to the highest point of the posterior tuberosity, and (2) a line from the former to the highest point on the anterior articular facet. An angle < 20° suggests a depression posterior facet and possible calcaneal fracture.


Q. 6

Long compression is used for which fracture ‑

 A Talus

 B

Calcaneum

 C Fibula

 D

Femur

Ans. B

Explanation:

Ans. is ‘b’ i.e., Calcaneum

  • Bulk foot compression dressing is given to treat inoperable calcaneal fractures.

Q. 7

Most commonly injured tarsal bone ‑

 A Talus

 B

Navicular

 C

Cunieform

 D

Calcaneum

Ans. D

Explanation:

Ans. is ‘d’ i.e., Calcaneum

  • Calcaneum is the most commonly fractured tarsal bone
  • In 5-10% of cases fracture is bilateral
  • Most common mechanism of injury is fall from height, often from a ladder, onto one or both heels. The calcaneum is driven up against the talus and is split or crushed. About one fifth of these patients suffer associated injuries of the spine, pelvis or hip.
  • Calcaneal fracture is also known as Voveri fracture’
  • Plain x-rays done for calcaneal fracture include lateral, oblique and axial views. Axial view of calcaneum is also called Hark view.
  • CT is the investigation of choice
  • With severe injuries and especially with bilateral fractures – it is essential to take x-ray the knees, the spine and the pelvis as well.


Leave a Reply

%d bloggers like this:
Malcare WordPress Security