Anatomy of fibula

1. Presented by – Presented to -
Kamlesh Nishad Vd. Sachin
Ravan
Kunal Yadav Vd. Gaurav
Sharma
Gulshan Rawat
Soaib
Parth Priyadarshi

2.  Identify fibula.
 Demonstrate the different parts, borders and surfaces of fibula.
 Determine the side of the fibula
 Hold the fibula in its anatomical position.
 Demonstrate attachment of joint capsule ,ligaments and muscles on
the fibula.

3.  Lies laterally
 Is smaller bone of leg.
 Homologous to ulna of upper limb
 Very thin bone compared to ulna.
 Is not a weight bearing bone.

4. Side Determination
Upper End – Expanded in All Directions
Lower End – Expanded In Anteroposteriorly
Flattened from Side to Side
On Medial Side of Lower End--Triangular Articular
Facet(Anteriorly)
Malleolar Fossa(Posteriorly)

5. Upper end/Head-
 Neck – Constriction below the head.
 Shaft-
 Lower end-
Expanded in all direction, circular
articular facet(for lateral condyle of tibia),
styloid process.
3 Borders & 3 Surfaces
4 Surfaces-
Anterior Posterior Medial &
Lateral

7.  1.Anterior border -
 Above –just below ant. Aspect of head.
 Below-
divide to enclose triangular
area(cont. lateral surface of lateral
malleolus
 2.Posterior border -
 Above-
in line with styloid process.
 Below-
continue with medial margin of
groove on back of lateral malleolus.

8.  2.Medial/Interosseous border -
 Lies just medial to ant.Border.
 Terminates-
below at roughened area
above talar facet.
 Upper 2/3rd–lies very
close(indistinguishable ) to ant.Border.

9.  Medial surface
 Lateral surface
 Posterior surface
LIESBETWEENAND
FEATURES
ANTERIOR AND MEDIAL BORDER
ITS UPPER 2/3RD VERY NARROW (1MM OR LESS)
ANTERIOR AND POSTERIOR BORDER
TWISTED BACKWARD IN LOWER PART
INTEROSSEOUS AND POST.BORDER
UPPER 2/3RD DIVIDE BY VERTICAL RIDGE
CALLED MEDIAL CREST.

10. 1.Anterior surface - rough and rounded
2.Posterior surface- have a groove.
3.Lateral surface - subcutaneous.
4.Medial surface - have Triangular facet for talus(Anteriorly)
& Malleolar fossa (Posteriorly)

11. Special features of lateral malleolus-
 Tip of lateral malleolus 0.5 cm lower then that of medial malleolus.
 Ant.Surface of lateral malleolus 1.5 cm posterior to that of medial malleolus

12. Surfaces and borders Attachments and relations
Medial surface Extensor digitorum longus-From
Upper 1/4(Whole)
Middle 2/4(Anterior)
Extensor hallucis longus-from
Middle 2/4(posterior)
Peroneus tertius-From
Lower 1/4 (Whole)

13. Surfaces and borders Attachments and relations
Lateral surface Peroneus longus-From
Upper 1/3(whole)
Middle 1/3(Posterior)
Peroneus Brevis-from
Lower 1/3(whole)
Middle 1/3(anterior)

14. Surfaces and borders Attachments and relations
Posterolateral surface B/W medial crest and
post. Border
Soleus (upper 1/4th),
flexor hallucis
longus(lower 3/4th)
B/W medial crest and
interosseous border
Tibialis posterior
Posteromedial surface

16. Head  Biceps femoris(Insertion C-shaped)
 Fibular collateral ligament(within C-shaped area)
 Capsular ligament of the superior tibiofibular
joint(is attached around articular facet)
Anterior border  Ant. intermuscular septum
Sup. Extensor Retinaculum
Sup. Peroneal Retinaculum
Posterior border  Post. intermuscular septum
Interosseous border  Interosseous membrane
 Gap(at upper end )-Ant. tibial vessels
Gap(at lower end) -perforating branch of
peroneal artery.

19. Triangular area above medial surface
of Lateral malleolus
 Interosseous tibiofibular(L)
 Ant.Tibiofibular(L)
 Post.Tibiofibular(L)
Lateral malleolus  Ant. Talofibular(L)
 post. Tibiofibular(L)
 Inf.Transverse(L)
 Calcaneofibular(L)
 tibiofibular Capsule
of ankle joint
 Tendon of Peroneus
longus (in groove of
post. Surface
Superficial)
 Tendon Peroneus brevis (in groove of
post. Surface Deep)

20. Blood Supply
 Peroneal Artery Gives Off The Nutrient
Artery For the Fibula
 Enters on Posterior Surface
 Directed Downwards

21. Clinicals
Fracture to Neck of Fibula
Damages Common Peroneal
Nerve
Deep Peroneal
Nerve
Superficial Peroneal
Nerve
 Paralysis of Muscles of the
anterior compartment of the leg
 Dorsiflexion power Loss of foot
 This condition is Called
FootDrop
 Also Sensory loss to First
Interdigital cleft
 Paralysis of Peroneus brevis &
Peroneus Longus
 Loss of Eversion of Foot at
subtalar joint
 Also Sensory Loss to Anterior &
Lateral Aspects of Leg,Dorsum
of foot&the toes

23. Thank you