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Use of a Radiograph to Assist with Therapeutic Shoeing and Trimming

Equine Podiatry. The specialty dealing with the equine hoofthe hoof capsulecoronary bandall anatomical structures with in the hoof capsuleall tendons that affect the hoof Requires the veterinarian and trimmer or farrier to work together. What does the horse need?. A veterinarian and a trimmer or farrier team who are willing to work togetherA team that enjoys podiatry and is committed to doing their best work .

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Use of a Radiograph to Assist with Therapeutic Shoeing and Trimming

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    1. Use of a Radiograph to Assist with Therapeutic Shoeing and Trimming Debra R. Taylor, DVM, MS, DACVIM Associate Professor Department of Clinical Sciences College of Veterinary Medicine Auburn University

    2. Equine Podiatry The specialty dealing with the equine hoof the hoof capsule coronary band all anatomical structures with in the hoof capsule all tendons that affect the hoof Requires the veterinarian and trimmer or farrier to work together

    3. What does the horse need? A veterinarian and a trimmer or farrier team who are willing to work together A team that enjoys podiatry and is committed to doing their best work

    4. What does a farrier or trimmer need from the veterinarian? A veterinarian who understands what is healthy and what is not who understands diseases affecting the hoof who can consistently take an informative radiograph of the foot who is willing to work as part of a team Take the time to show him the radiographs Pre- and post- trimming or shoeing Learn to speak the same language Many overlapping terms

    5. “Quality radiographs are to podiatry what ultrasound is to reproduction”

    6. Traditional Radiography of the digit

    7. Traditional Radiography Beam focused at coronary band Foot packed Ground surface not always demarcated Dorsal hoof wall marked with rigid object Apex of frog and heels not marked Hoof not always directly against cassette

    8. Is this what we are after?

    9. Lacks information for the farrier trimmer!

    10. Radiographic GOALS Consistent informative films Take the same view every time Ability to monitor small changes with accuracy Evaluate the soft tissues of hoof Evaluate P3’s relationship to capsule and ground Evaluate how the bone and the soft tissues relate to each other How the bone and soft tissue relate to the ground Learn common parameters of breeds What is common is not necessarily healthy Horses have only rarely been bred for hoof quality Popular breeds are notorious for poor hoof health

    11. Radiography for Shoeing and Trimming Center on bottom of P3, not coronary band measure sole depth Palmar/plantar angle medial to lateral balance of P3 Clearly demarcate (with barium paste) Dorsal hoof wall – care to start paste exactly on hairline Lateral heel bulb – care to start paste exactly on hairline Apex of frog Clearly demarcate ground surface – lead in wooden block Hoof touching cassette Heel bulbs parallel to primary beam and perpendicular to cassette Do not pack the foot Measure sole depth Standardize distance from film to machine

    12. Methods Center on bottom of P3 Blocks match machine metal wire in top Barium paste on dorsal hoof wall Barium on apex of frog Barium on heel

    13. Much better Centered bottom of P3 Dorsal hoof wall marked Ground Surface Marked Not packed Heel marked Apex marked Note: -ok that bone is too light, not as worried about boney detail here as relationship of the bone to the soft tissues and ground

    14. Equine Podiatry Radiology

    15. Breakover Maybe give more examples of breakover (more normal ones)Maybe give more examples of breakover (more normal ones)

    16. Podiatry Radiology Measurements Add word “pivot” change anatomical terms decreases sheer Add word “pivot” change anatomical terms decreases sheer

    17. Palmar/plantar Angle Need to measure angle (or find it).Need to measure angle (or find it).

    18. Podiatry Radiology Measurements What are good palmar angles? What are good palmar angles?

    19. Sole Depth

    20. Podiatry Radiology Measurements

    21. Horn: Laminar Zone

    22. Podiatry Radiology Measurements

    23. CE Zone Check to make sure this is correct… what does it mean if this is greater than 1cm….????Check to make sure this is correct… what does it mean if this is greater than 1cm….????

    24. Podiatry Radiology Measurements What are good palmar angles?What are good palmar angles?

    25. Cup Check to make sure this is correctCheck to make sure this is correct

    26. Podiatry Radiology Measurements What are good palmar angles?What are good palmar angles?

    27. Bone Angle Check to make sure this is correctCheck to make sure this is correct

    28. Podiatry Radiology Measurements What are good palmar angles?What are good palmar angles?

    29. Parameters on a lateral view

    30. Evaluation of Lateral View Horn: Laminar Zone Should be uniform ( < 20 mm) CE zone - <1 cm coronary band - extensor process “halo effect”- coronary band invagination Sole depth mass (> 10 mm) Cup Black area between sole and ground surface

    31. Evaluation Lateral View Palmar Angle Angle formed between palmar surface of P3 and ground The horse wants it positive 3-9 ş Digital Breakover distance from the tip of P3 to where hoof breaks forward The horse wants it short, maybe even negative? The horse wants it optimized. Bone Angle angle formed between dorsal and palmar surfaces of P3

    32. Horse in a Cast with digital radiography

    33. Anterior – Posterior projection Looking for medial lateral balance of P3 Uniformity of joint spaces Is the medial and lateral coronary band level Evaluate growth rings if use barium

    34. Anterior posterior view

    35. Moral TAKE the radiograph the correct way Evaluate the parameters Use the film to make goals Evaluate whether goals were met Work together!!!!

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