Ovc Students-Shoeingthelamehorse2010
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This is a presentation for OVC students as part of the McKee-Pownall Equine Services Student Seminar
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Ovc Students-Shoeingthelamehorse2010
- 1. Shoeing The Lame Horse MPES OVC Student Seminar Mike Pownall, DVM, CF McKee-Pownall Equine Services www.mpequine.com QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture.
- 2. 3 Things We Will Learn Today • What are Farrier/Vet Roles? • What are Some Common Foot Lameness? • What are Treatments
- 3. Rule # 1 • Vets and Farriers must play well together
- 4. Rule # 1 • Vets and Farriers must play well together
- 5. Farrier and Vet Roles Need to know what normal is Each horse is different Each Horse is DifferentEach Horse is Different
- 6. Farrier and Vet Roles Assessing Balance • Static leg and hoof while standing • Dynamic leg and hoof in motion
- 7. Static Balance Foot Symmetry - sole
- 8. Rule # 2 Not everything is at it appears to be
- 9. Static Balance Foot Symmetry - sole
- 10. Static Balance Foot Symmetry - coronary band
- 11. Static Balance Foot Symmetry - coronary band
- 12. Static Balance
- 13. Dynamic Balance • How leg and hoof move together • Problems can be due to shoeing, conformation, lameness • Factors to consider Does the foot land flat Difference between walk and trot Difference when ridden?
- 14. Dynamic Balance QuickTime™ and a Cinepak decompressor are needed to see this picture. QuickTime™ and a decompressor are needed to see this picture.
- 15. Strategy For Shoeing Lame Horses • Know the Lameness • Know the Shoe • Know Team Strengths
- 16. Common Lameness's Helped By Horseshoeing • Laminitis/Founder • “Navicular” or Heel Pain • Toe & Quarter Cracks • White Line Disease • Abscesses
- 17. Laminitis & Founder • Many treatments • Challenging • Many shoeing techniques with little supporting science • Intensive supportive therapy
- 18. Terminology • Laminitis Inflammation of lamella • Founder Rotation of P3 from hoof wall • Sinker Complete detachment of P3 from hoof
- 19. What Laminitis Looks Like
- 20. What Laminitis Looks Like
- 21. What Founder Looks Like
- 22. What A Sinker Looks Like
- 23. Shoeing The Laminitic Horse • Xray before and during treatment • Re-distribute weight bearing away from hoof wall • Reduce pull of DDFT
- 24. Radiography
- 25. Radiography
- 26. Venograms
- 27. Venograms
- 28. Venograms
- 29. Venograms
- 30. Shoeing The Laminitic Horse Stabilize Acute Cases • Minimize further damage • Too painful to shoe • Sometimes all you need • Great with grain overload • Use high density styrofoam or Soft Ride boots
- 31. Shoeing The Laminitic Horse Stabilize foot
- 32. Shoeing The Laminitic Horse
- 33. Shoeing The Laminitic Horse Re-distribute Weight From Hoof Wall • Decrease load on lamellae • Use frog, bars and sole • Utilize area behind true apex of frog • Use radiographs and hoof testers
- 34. Shoeing The Laminitic Horse
- 35. Shoeing The Laminitic Horse Reduce Pull of DDFT • Decrease tearing forces on laminae • Surgical and shoeing techniques • Tenotomy often essential • Raise heels Extremely high heels leads to compression of P3 • Facilitate breakover
- 36. Shoeing The Laminitic Horse Reduce Pull of DDFT
- 37. Shoeing The Laminitic Horse
- 38. Shoeing The Laminitic Horse Protect Bottom of Foot Never Place a Permanent Pad on an Acute Case!!!!!
- 39. Shoeing The Laminitic Horse Minimize Hoof Wall Trauma
- 40. The “Clog” • #6 x 1.25 drywall screws • Adhesive • Casting tape • Soft impression material
- 41. Why The “Clog”? • Versatile breakover • Protect sole • Frog support • Minimize hoof wall strain • Decrease strain on DDFT.
- 42. The “Clog”
- 43. The “Clog”
- 44. The “Clog”
- 45. The “Clog”
- 46. The “Clog”
- 47. The “Clog”
- 48. Shoeing The Laminitic Horse •Be patient •Pain control •Quality of life
- 49. Heel Pain • Navicular? • Crushed and Bruised Heels • Sheared Heels • Thrush
- 50. Navicular - Is It Real? • Radiographic lesions are confusing. • Diagnostic blocks are confusing
- 51. Shoeing For Navicular • Often need concurrent medical therapy • Access hoof balance and correct that first • Increasing heels will work if DDFT is involved in acute cases • Wedging heels too much will lead to coffin joint problems and crushed heels.
- 52. Crushed and Bruised Heels • Long toe - underrun heels • Often misdiagnosed as navicular • Takes a long time to correct • Often need to wait until show season is over
- 53. Crushed and Bruised Heels Goals of Therapy • Balance feet • Remove long and damaged heel tubules • Shoes to minimize forces on heels • Place shoes where you want heels to be • Medication to reduce inflammation • Patience
- 54. Crushed and Bruised Heels Therapy Remove Long Heel & Toe
- 55. Crushed and Bruised Heels Therapy Wedging collapsed heels often counter productive
- 56. Sheared Heels • Balance, pain and conformation related • Rarely diagnosed • Very painful • Need to stabilize the foot to stop shearing • Long term therapy
- 57. Thrush • Found in Horses that are inactive and have club feet Lameness in affected limb Horses with pads • Lack of blood flow to area bacterial and fungal infection of frog • Penetrates sensitive tissue of sub solar region • Mimics Navicular
- 58. Thrush Therapy • Can take a long time to treat • Balance feet • Eliminate other source of lameness. • Animalintex to drain infection • Remove infected tissue • Thrushbuster http://www.mpequine.com/Treat_Thrush.aspx
- 59. Quarter Cracks • Caused by medial-lateral imbalance Wedging up one side Landing harder on one side • Focal pressure causes hoof wall to break down • Pain caused by shearing of torn hoof wall • Sometimes not noticeable on hoof wall • Coronary band is jammed up at site
- 60. Quarter Cracks QuickTime™ and a Cinepak decompressor are needed to see this picture. QuickTime™ and a decompressor are needed to see this picture.
- 61. Quarter Cracks QuickTime™ and a Cinepak decompressor are needed to see this picture. QuickTime™ and a decompressor are needed to see this picture.
- 63. Toe Cracks • Caused by long toes or excess rasping of toes • Set shoe back • Clean out crack • Adhesive or staples once infection cleared like quarter cracks • Superficial cracks respond to balance
- 64. Toe Cracks
- 65. White Line Disease • Fungal or bacterial infection of white line • Commonly called “gravel” or “seedy toe” • Often not noticed until it has undermined a lot of hoof wall • Topical therapy is not satisfying due to lack of penetration • Best therapy is hoof wall removal • Often need hoof wall support like a laminitic horse
- 67. Abscess • Minimize digging at sole Damage from digging is worse than abscess Drill hole in hoof wall to drain abscess • Soak with Animalintex for 2-3 days • Epson salt traps abscess in hoof Good once abscess has broken through • Sugardyne or Clean Trax once abscess has begun to drain
- 68. Abscess
- 69. Shoeing the Lame Horse • Rare to have quick fix! • Interferes with show season • Teamwork • Price • Aftercare concerns! Turnout Time involved in treatments
- 70. It Can Be Overwhelming
Notas del editor
- Each horse is different
- New theories every year.
- Need good laminitic rad
- Need good laminitic rad
- Add styrofoam picture
- clog
- How do you treat without a diagnosis?
- Chronic cases are harder to treat
- Causes Conformation Shoeing Other lamenesses Hard ground Poor riding
- video
- Egg bar or eggbar-heartbar Can cover crack with adhesive once infection is cleared up Wires and nails rarely needed if foot is balanced properly
- Need to remove infected tissue and a margin May need to do in stages if widespread Need a frog support shoe if affects more than 1/3 of hoof Problems occur If covered too soon - abscess Don’t support wall - laminits