Anatomy of Fibula with Muscle Attachments.pptx

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. L i e s l ate r a l l y I s sm a l l e r b o n e o f l e g . H o m o l o g o u s to u l n a o f u pp e r li m b V e r y t h i n b o n e c o m p a r e d to u l n a. I s n o t a w e i g h t b e a r i n g b o n e .

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- N e c k – C o nst r i c t i o n b e l o w t h e h e ad . S h a f t - Lower end - E x p an d e d i n a l l d i r e c t i o n , circular articular facet(for lateral condyle of tibia), st y l o i d p r o c e ss. 3 Borders & 3 Surfaces 4 Surfaces- Anterior Posterior Medial & Lateral

6. 1 . A nt e r i o r b o r d e r - A b o v e – j us t b e l o w a n t . A s p e c t o f h e a d . B el o w - d i v i d e t o e n c l o s e t r ia n g u lar a r e a ( c o n t . lat e r al s u r f a c e o f lat e r al malleolus 2. P o s t e r i o r b o r d e r - A b o v e - in li n e w it h s t y l o id p r o c e ss . B el o w - c o n t i n u e w it h m e d ial m a r g in o f g r o o v e on bac k o f lat e r al m all e o l u s .

7. 2. Medial/Interosseous b o r d e r - L i e s j u st m e d i al to an t. B o r d e r . T e r m i n ate s - b e l o w at r o u g h e n e d a r e a ab o v e ta l ar f ac e t . Upper 2/3 rd –lies very close(indistinguishable ) to ant. Border .

8. M e d i al s u r f ac e L ate r al s u r f ac e P ost e r i o r s u r f ac e L i e s b e t w ee n a n d features A n t e r i o r an d m e d i al b o r d e r I ts u pp e r 2 / 3 r d v e r y n a r r o w ( 1m m o r l e ss ) A n t e r i o r an d p ost e r i o r b o r d e r T wi st e d b ac k w a r d i n l o w e r p a r t I n t e r o ss e o u s an d p o st. B o r d e r Upper 2/3 rd divide by vertical ridge called medial crest.

9. 1 . A n t e r i o r s u r f ac e - r o u g h an d r o u n d e d 2 . P ost e r i o r s u r f ac e - h a v e a g r o o v e . L ate r al s u r f ac e - s u b c u ta n e o u s. Medial surface - have T riangular facet for talus( A nteriorly ) & M a l l e o l ar f o ssa ( P ost e r i o r l y )

10. 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

11. Surfaces and borders Attachments and relations M e d i a l s u r f a ce E xt en s or d igi t o r u m l ong u s -From Upper 1/4 (Whole) Middle 2/4 (Anterior) Extensor hallucis longus - from Middle 2/4 (posterior) P e r one u s t e r t i u s - From Lower 1/4 (Whole)

12. Surfaces and borders Attachments and relations Lateral s u r f a ce Peroneus l ong u s - From Upper 1/3(whole) Middle 1/3(Posterior) Peroneus Brevis- from Lower 1/3(whole) Middle 1/3(anterior)

13. Surfaces and borders Attachments and relations Posterolateral s u r f a ce B/ W m e d i a l c r e s t a n d p o s t . B o r d e r Sol e u s ( u pp e r 1 / 4 t h ) , f l ex or hall u ci s long us ( l o w e r 3 / 4 t h ) B/ W m e d i a l c r e s t a n d i nt e r o ss eou s b o r d e r Ti b ialis po s t e r ior Posteromedial s u r f a ce

14. Head B i c e p s f e m o r is (Insertion C-shaped) F i b u lar col la t e r al li g am ent (within C-shaped area) C ap s u lar li g am en t of t he su p e r ior t ibio f i b u lar joint (is attached around articular facet) An t e r ior b o r d er An t . i n t e r m u s c ular s e p t u m S u p . E x t en s or R e t ina c ul u m S u p . P e r oneal R e t ina c ul u m P o s t e r ior b o r d er P o s t . in t e r m u s c ular s e p t u m I n t e r o ss eou s b o r d er I n t e r o ss eou s m e m b r ane G a p( a t upp e r en d ) - An t . t ibial v e s s e l s G a p( a t l ow e r en d ) - p e r f o r a t ing b r an c h of p e r oneal a r t e r y .

15. T r iang u l a r a r e a a b o v e m e d ial su r f a c e of La t e r al malleolus I n t e r o ss eou s t ibio f i b u lar (L) An t . T ibio f i b u lar (L) P o s t . T i b io f i b u lar (L) L a t e r al mall eo l u s An t . T alo f i b u lar (L) po s t . T i b io f i b u lar (L) I n f . T r an s v e r s e (L) C al c a neo f i b u lar(L) t ibio f i b u lar C ap s u le of ankle joint Tendon of Peroneus longus (in groove of post. Surface Superficial ) Tendon Peroneus brevis (in groove of post. Surface Deep )

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

17. 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 T his condition is Called FootDrop A lso 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

18. Thank you