veterinary surgery

1. In The Name Of
GOD

2. Surgery of the Ear
Dr. Sayahi

3. Anatomy

4. What can happen to ears?

5. presbycusis

6. Auricular hematoma
partially filling the
concave surface of
the pinna.

7. • Non-healing progressive
ulcerative lesion of the
pinna margin in a cat.

8. Discrete solitary grade 2 mast cell
tumor in the center of the pinna in a
dog

9. Extensive multifocal ceruminous
carcinoma in a cat affecting the
opening of the ear canal and
extending up the pinna.

10. After total pinnectomy
Large grade 2 soft tissue
sarcoma involving the base
of the pinna in a dog.

14. U shape incision

15. dissection

16. make two parallel incisions through the lateral wall of the vertical canal,
starting at the incisures and following the curve of the canal

17. Examine the new ostium.
The opening in this dog is crescent shaped and partially
obstructed by a fold at the base of the flap.

18. Examine the new ostium.
The opening in this dog is crescent shaped and partially
obstructed by a fold at the base of the flap.

19. Final appearance of ostium.
The opening is ovoid and the
flap lies flat.

20. Transect the distal (dorsal)
half of the flap.

21. Final apearance

22. Minimal epithelial hyperplasia
Small neoplastic lesions in lateral wall of
vertical ear canal
Stenosis or occlusion of horizontal ear canal
Otitis media
And Indicationscontraindications

23. Owner MUST acknowledged about final
appearance

25. vertical ear canal ablation

27. External carotid artery and
Maxillary vein are ventral to
the horizontal canal and the
facial nerve wraps around the
ventral two-thirds of the canal.

28. Incise the skin at the level
of the antihelix

29. Continue the skin incision circumferentially
around the external opening of the vertical canal.

30. Retract the vertical canal
with Allis tissue forceps and expose the
cartilage and muscle attachments

31. Elevate and transect
muscle and fascial attachments to the
vertical canal.

32. Transect the vertical ear canal cartilage distal to its junction
with the horizontal canal

33. Appose the skin margins.
Place several sutures dorsally along the
medial surface of the pinna

34. Marked inflammation and
ulceration in the external ear
opening of a cat. A total ear
canal ablation gave this cat
considerable relief from
symptoms.

35. Stenosis after vertical
ear canal ablation
Horner syndrome in a cat
following ear canal ablation

36. Aural hematoma

38. Drain placement
• Teat cannula
• Penrose

39. Pina reconstruction

42. Thanks for your attention