Trimming and Shoeing the Chronically Affected Horse

Curtis, Simon; Ferguson, Dave W.; Luikart, Randy; Ovnicek, Gene

doi:10.1016/s0749-0739(17)30155-4

Cited by 13 publications

(11 citation statements)

References 4 publications

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“…Generally speaking, the lamellar wedge (i.e., the ectopic white line) should be resected to prevent discomformation of the hoof wall [4,21]. Based on the findings of the present study, the optimum time to resect an ectopic white line material would be no earlier than one month after the onset of disease.…”

Section: Discussionmentioning

confidence: 70%

“…5-17), the laminitic WLSA were expressed in eight cases (case Nos. [1][2][3][4][5][6][7][8], and the AHSA could only be expressed in 9 cases (case Nos. 9-17) ( Table 1).…”

Section: Gross Observations Of Hoof Sectionsmentioning

confidence: 99%

“…However, we do not have any methods to diagnose how wide the abnormal horn, generated inside the hoof capsule, is in living horses. This background makes it difficult to establish a proper and reasonable shoeing theory for the treatment of chronic laminitis, which displays the lamellar wedge [4].…”

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confidence: 99%

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A Gross and Histopathological Study of an Ectopic White Line Development in Equine Laminitis.

et al. 2002

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ABSTRACT. In horses with chronic laminitis, an abnormal horny structure called lamellar wedge, is generated between the hoof wall and the laminar epidermis. To be able to manage horses with chronic laminitis correctly, more information about the pathological state of this abnormal horn is required. The aim of this study was to collect and analyze objective morphological data about the abnormal horn in order to understand its morphology and development. In the study, the abnormal horn was grossly visible on the sagittal hoof section from approximately 20 days after the onset of disease. In the histological observations, the structural characteristics of this abnormal horn were similar to the white line tissue, suggesting it is an ectopic white line. Mean value of the cross-sectional area of the abnormal horn against the distal phalanx section area (A/D) was 0.29 cm 2 SD ± 0.14 and it finally showed an eight-fold increase over the mean value of normal white line section area against the distal phalanx section area. In conclusion, a large amount of the ectopic white line is thought to be finally able to inhibit normal hoof wall growth, so that it should be resected at the optimum time when would be after one month from the onset of the disease.

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Section: Discussionmentioning

confidence: 70%

“…5-17), the laminitic WLSA were expressed in eight cases (case Nos. [1][2][3][4][5][6][7][8], and the AHSA could only be expressed in 9 cases (case Nos. 9-17) ( Table 1).…”

Section: Gross Observations Of Hoof Sectionsmentioning

confidence: 99%

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A Gross and Histopathological Study of an Ectopic White Line Development in Equine Laminitis.

et al. 2002

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“…For that purpose, several types of shoes have been described that could either be nailed on the hoof or they could be glued on (Curtis et al 1999). Frog support should be provided in order to alleviate pain and to stabilize the distal phalanx.…”

Section: Baxter 1997)mentioning

confidence: 99%

Equine Laminitis: A retrospective study of 55 cases (2000-2004)

Papakonstantis

Diakakis

Patsikas

et al. 2017

J Hellenic Vet Med Soc

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Laminitis is a common equine disease. In order to have a good prognosis, prompt therapy is essential. Fifty-five cases of equine laminitis, that were treated in the Clinic of Surgery, School of Veterinary Medicine, were included in this study. More specifically, the clinical presentation and the diagnostic approach are described and the therapeutic protocol is evaluated. At the same time, the literature is reviewed as far as the epidemiology, the pathogenesis, the clinical signs, the diagnosis and the treatment is concerned. It is worth mentioning that several therapeutic protocols have been put forward for the treatment of laminitis, perhaps due to the fact that its pathogenesis is still under dispute. Prolonged rest, frog support, cols hosing of the feet, severe diet, administration of antibiotics and non-steroidal anti-inflammatory drug were the key points of the protocol of this study that led to extremely good results for the majority of the cases.

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“…The heart bar shoe, first described in 1824 (quoted by Chapman 4 ) was reported to not only remove tension from the laminar interface by increased frog pressure 15,16 , but also to push P3 dorsally back into position 13,18,46 , the shoe may also alleviate compressive forces affecting digital blood supply 4,15,16 . Expansion of the palmar aspect of the hoof is also restricted, thereby providing rigidity and limiting further damage to the submural tissues 10 . This shoe, however, has several disadvantages.…”

Section: Introductionmentioning

confidence: 99%

The effect of frog pressure and downward vertical load on hoof wall weight-bearing and third phalanx displacement in the horse - an in vitro study : research communication

Olivier¹,

Wannenburg²,

Gottschalk³

et al. 2001

J. S. Afr. Vet. Assoc.

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A shoe was designed to combine the advantages of a reverse shoe and an adjustable heart bar shoe in the treatment of chronic laminitis. This reverse even frog pressure (REFP) shoe applies pressure uniformly over a large area of the frog solar surface. Pressure is applied vertically upward parallel to the solar surface of the frog and can be increased or decreased as required. Five clinically healthy horses were humanely euthanased and their dismem-bered forelimbs used in an in vitro study. Frog pressure was measured by strain gauges applied to the ground surface of the carrying tab portion of the shoe. A linear variable distance transducer (LVDT) was inserted into a hole drilled in the dorsal hoof wall. The LVDT measured movement of the third phalanx (P3) in a dorsopalmar plane relative to the dorsal hoof wall. The vertical component of hoof wall compression was measured by means of unidirectional strain gauges attached to the toe, quarter and heel of the medial hoof wall of each specimen. The entire limb was mounted vertically in a tensile testing machine and submitted to vertical downward compressive forces of 0 to 2500 Nat a rate of 5 cm/minute. The effects of increasing frog pressure on hoof wall weight-bearing and third phalanx movement within the hoof were determined. Each specimen was tested with the shoe under the following conditions: zero frog pressure; frog pressure used to treat clinical cases of chronic laminitis (7 N-cm); frog pressure clinically painful to the horse as determined prior to euthanasia; frog pressure just alleviating this pain. The specimens were also tested after shoe removal. Total weight-bearing on the hoof wall at zero frog pressure was used as the basis for comparison. Pain-causing and pain-alleviating frog pressures decreased total weight-bearing on the hoof wall (P < 0.05). Frog pressure of 7 N-cm had no statistically significant effect on hoof wall weight-bearing although there was a trend for it to decrease as load increased. Before loading, the pain-causing and pain-alleviating frog pressures resulted in a palmar movement of P3 relative to the dorsal hoof wall compared to the position of P3 at zero frog pressure (P < 0.05). This difference remained statistically significant up to 1300 Nload. At higher loads, the position of P3 did not differ significantly for the different frog pressures applied. It is concluded that increased frog pressure using the REFP shoe decreases total hoof wall weight-bearing and causes palmar movement of P3 at low weight-bearing loads. Without a shoe the toe and quarter hoof wall compression remained more constant and less in magnitude, than with a shoe.

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Trimming and Shoeing the Chronically Affected Horse

Cited by 13 publications

References 4 publications

A Gross and Histopathological Study of an Ectopic White Line Development in Equine Laminitis.

A Gross and Histopathological Study of an Ectopic White Line Development in Equine Laminitis.

Equine Laminitis: A retrospective study of 55 cases (2000-2004)

The effect of frog pressure and downward vertical load on hoof wall weight-bearing and third phalanx displacement in the horse - an in vitro study : research communication

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