Leg
Three compartments Anterior = dorsiflexors, innervated by deep
peroneal, blood supply from ant. tibial aa. Lateral = evertors of foot, innervated by
superficial peroneal nerve, blood supply from peroneal aa.
Posterior = plantar flexors, innervated by tibial nerve, blood supply from posterior tibial aa.
Compartments
Compartments
Tibio-Fibular Joints
Proximal, Middle (Interossseous Membrane), Distal
Proximal = Head of Fibula with Lateral Condyle = Synovial Gliding A and P Ligaments
Middle = Interosseous Membrane = Fibrous - purpose
Distal = inferior fibula with inferior tibia – interosseous membrane and A and P Inferior tibiofibular ligaments – union and support essential for ankle stability
Proximal T – F Joint
Middle and Distal T – F Joints
All Three
Distal T- F Joint
Distal T – F Joint
Anterior Compartment
General Innervation/Blood supply Muscles – note retinaculum
• Tibilais Anterior
• Extensor Hallicus Longus
• Extensor digitorum longus
• ? Extensor digitorum Brevis
Anterior compartment syndrome Eccentric role of dorsiflexors drop foot
Anterior Compartment Muscles
Anterior Compartment
Lateral Compartment
General innervation/blood supply Muscles – note retinaculum
• Peroneus (Fibularis) Logus
• Peroneus Brevis
• Peroneus Tertius
Lateral Compartment
Lateral Compartment
Tendon Sheaths Lateral
Posterior Compartment
Superficial, Intermediate and Deep Superficial
• Gastrocnemius
• Plantaris Intermediate
• Soleus Deep
• Popliteus
• Flexor digitorum longus
• Flexor hallicus longus
• Tibialis posterior
Superficial/Inter. Muscles
Superficial Muscles
Intermediate Muscles
Deep Muscles
Deep Muscles
Tendon Sheaths – Medial = Tom, Dick AN Harry
Blood Supply
Blood Supply
Blood Supply
Blood Supply
Blood Supply
Blood Supply
Blood Supply
Blood Supply
