Leg - PowerPoint PPT Presentation

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Leg

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Presentation Transcript

  1. 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.

  2. Compartments

  3. Compartments

  4. 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

  5. Proximal T – F Joint

  6. Middle and Distal T – F Joints

  7. All Three

  8. Distal T- F Joint

  9. Distal T – F Joint

  10. 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

  11. Anterior Compartment Muscles

  12. Anterior Compartment

  13. Lateral Compartment • General innervation/blood supply • Muscles – note retinaculum • Peroneus (Fibularis) Logus • Peroneus Brevis • Peroneus Tertius

  14. Lateral Compartment

  15. Lateral Compartment

  16. Tendon Sheaths Lateral

  17. Posterior Compartment • Superficial, Intermediate and Deep • Superficial • Gastrocnemius • Plantaris • Intermediate • Soleus • Deep • Popliteus • Flexor digitorum longus • Flexor hallicus longus • Tibialis posterior

  18. Superficial/Inter. Muscles

  19. Superficial Muscles

  20. Intermediate Muscles

  21. Deep Muscles

  22. Deep Muscles

  23. Tendon Sheaths – Medial = Tom, Dick AN Harry

  24. Blood Supply

  25. Blood Supply

  26. Blood Supply

  27. Blood Supply

  28. Blood Supply

  29. Blood Supply

  30. Blood Supply

  31. Blood Supply