Let us examine the structure of the fibula. It is one of the leg bones and is positioned laterally

It has three parts:

• body (corpus fibulae/diaphysis)

• proximal epiphysis (epiphysis proximalis)

  

• distal epiphysis (epiphysis distalis)

  

  Between the proximal epiphysis and the body lies the neck of the fibula (collum fibulae).

  

  We also distinguish between three surfaces (they are best seen around the body of the bone):

• posterior surface (facies posterior)

  

• medial surface (facies medialis)

  

• lateral surface (facies lateralis)

  

  There are also three borders of the fibula (best seen in the area of the body of the bone):

• anterior border (margo anterior)

  

• posterior border (margo posterior)

  

• interosseous border (margo interosseus)

On the proximal epiphysis lies the head of the fibulae (caput fibulae).

The head has an apex (apex capitis fibulae)

and an articular facet (facies articularis capitis fibulae) that connects to the tibia.

There is a medial crest (crista medialis) on the body of the bone.

From the distal epiphysis, the lateral malleolus (malleolus lateralis) is derived.

It has an articular facet (facies articularis malleoli) connecting to the talus.

There is also the malleolar fossa (fossa malleoli lateralis) at the back of the ankle

Slightly in front lies the malleolar groove (sulcus malleolaris), in which the tendon of the fibularis longus muscle passes.

Dictionary

Fibula (calf bone)

fibula

fibula

body of fibula

corpus fibulae/diaphysis

proximal epiphysis

epiphysis proximalis

distal epiphysis

epiphysis distalis

neck of fibula

collum fibulae

posterior surface

facies posterior

medial surface

facies medialis

lateral surface

facies lateralis

anterior border

margo anterior

posterior border

margo posterior

interosseous border

margo interosseus

head of fibula

caput fibulae

apex of head of fibula

apex capitis fibulae

articular facetof head of fibula

facies articulariscapitis fibulae

medial crest

crista medialis

lateral malleolus

malleolus lateralis

articular facet of malleolus

facies articularis malleoli

malleolar fossa

fossa malleoli lateralis

malleolar groove

sulcus malleolaris