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Effects of aluminum hinged shoes on the structure of contracted feet in Thoroughbred yearlings.

Tanaka K, Hiraga A, Takahashi T, Kuwano A, Morrison SE - J Equine Sci (2015)

Bottom Line: We applied aluminum hinged shoes (AHSs) to the club foot-associated contracted feet of 11 Thoroughbred yearlings to examine the effects of the shoes on the shape of the hoof and third phalanx (P III).After 3 months of AHS use, the size of the affected hooves increased significantly, reaching the approximate size of the healthy contralateral hooves with respect to the maximum lateral width of the foot, the mean ratio of the bearing border width to the coronary band width, and the mean ratio of the solar surface width to the articular surface width.These results suggest that the AHSs corrected the contracted feet in these yearling horses.

View Article: PubMed Central - PubMed

Affiliation: Center for Equine Breeding Technology, Japan Bloodhorse Breeder's Association, Shizunai Stallion Station, Hokkaido 056-0144, Japan.

ABSTRACT
We applied aluminum hinged shoes (AHSs) to the club foot-associated contracted feet of 11 Thoroughbred yearlings to examine the effects of the shoes on the shape of the hoof and third phalanx (P III). After 3 months of AHS use, the size of the affected hooves increased significantly, reaching the approximate size of the healthy contralateral hooves with respect to the maximum lateral width of the foot, the mean ratio of the bearing border width to the coronary band width, and the mean ratio of the solar surface width to the articular surface width. These results suggest that the AHSs corrected the contracted feet in these yearling horses.

No MeSH data available.


Related in: MedlinePlus

Top) Changes in the maximum lateral width of the hoof. Middle) Ratio of the bearing border width to the coronary band width. Bottom) Ratio of the solar surface width to the articular surface width. B/C ratio, ratio of the bearing border width to the coronary band width; S/A ratio, ratio of solar surface width to articular surface width; AHS (■), aluminum hinged shoe; NAS (□), normal aluminum shoe; *P<0.05.
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fig_004: Top) Changes in the maximum lateral width of the hoof. Middle) Ratio of the bearing border width to the coronary band width. Bottom) Ratio of the solar surface width to the articular surface width. B/C ratio, ratio of the bearing border width to the coronary band width; S/A ratio, ratio of solar surface width to articular surface width; AHS (■), aluminum hinged shoe; NAS (□), normal aluminum shoe; *P<0.05.

Mentions: At the first evaluation of club foot severity, two foals showed grade 1 (G1), six showed G2, and three showed G3. Three months after the initial AHS application, two foals had improved from G3 to G2, five foals had improved from G2 to G1, one foal had improved from G1 to G0, and three foals showed no improvement. In total, eight of 11 foals (72.7%) showed improvement in club foot (Table 1). Kendall’s coefficient of concordance indicated good agreement of the maximum lateral width of the hoof, the bearing border width, the coronary band width, the articular surface width of P III; and the solar surface width between the three observers. Before AHS application, the mean values of the maximum lateral width were 89.06 ± 3.66 mm (± standard deviation; SD) in the contracted feet and 96.01 ± 3.69 mm in the controls, indicating a significant difference. After 3 months, the mean values of the maximum lateral width were 105.39 ± 3.20 mm in thecontracted feet and 104.42 ± 4.39 mm in the controls, indicating no significant difference (Fig. 4Fig. 4.


Effects of aluminum hinged shoes on the structure of contracted feet in Thoroughbred yearlings.

Tanaka K, Hiraga A, Takahashi T, Kuwano A, Morrison SE - J Equine Sci (2015)

Top) Changes in the maximum lateral width of the hoof. Middle) Ratio of the bearing border width to the coronary band width. Bottom) Ratio of the solar surface width to the articular surface width. B/C ratio, ratio of the bearing border width to the coronary band width; S/A ratio, ratio of solar surface width to articular surface width; AHS (■), aluminum hinged shoe; NAS (□), normal aluminum shoe; *P<0.05.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4496424&req=5

fig_004: Top) Changes in the maximum lateral width of the hoof. Middle) Ratio of the bearing border width to the coronary band width. Bottom) Ratio of the solar surface width to the articular surface width. B/C ratio, ratio of the bearing border width to the coronary band width; S/A ratio, ratio of solar surface width to articular surface width; AHS (■), aluminum hinged shoe; NAS (□), normal aluminum shoe; *P<0.05.
Mentions: At the first evaluation of club foot severity, two foals showed grade 1 (G1), six showed G2, and three showed G3. Three months after the initial AHS application, two foals had improved from G3 to G2, five foals had improved from G2 to G1, one foal had improved from G1 to G0, and three foals showed no improvement. In total, eight of 11 foals (72.7%) showed improvement in club foot (Table 1). Kendall’s coefficient of concordance indicated good agreement of the maximum lateral width of the hoof, the bearing border width, the coronary band width, the articular surface width of P III; and the solar surface width between the three observers. Before AHS application, the mean values of the maximum lateral width were 89.06 ± 3.66 mm (± standard deviation; SD) in the contracted feet and 96.01 ± 3.69 mm in the controls, indicating a significant difference. After 3 months, the mean values of the maximum lateral width were 105.39 ± 3.20 mm in thecontracted feet and 104.42 ± 4.39 mm in the controls, indicating no significant difference (Fig. 4Fig. 4.

Bottom Line: We applied aluminum hinged shoes (AHSs) to the club foot-associated contracted feet of 11 Thoroughbred yearlings to examine the effects of the shoes on the shape of the hoof and third phalanx (P III).After 3 months of AHS use, the size of the affected hooves increased significantly, reaching the approximate size of the healthy contralateral hooves with respect to the maximum lateral width of the foot, the mean ratio of the bearing border width to the coronary band width, and the mean ratio of the solar surface width to the articular surface width.These results suggest that the AHSs corrected the contracted feet in these yearling horses.

View Article: PubMed Central - PubMed

Affiliation: Center for Equine Breeding Technology, Japan Bloodhorse Breeder's Association, Shizunai Stallion Station, Hokkaido 056-0144, Japan.

ABSTRACT
We applied aluminum hinged shoes (AHSs) to the club foot-associated contracted feet of 11 Thoroughbred yearlings to examine the effects of the shoes on the shape of the hoof and third phalanx (P III). After 3 months of AHS use, the size of the affected hooves increased significantly, reaching the approximate size of the healthy contralateral hooves with respect to the maximum lateral width of the foot, the mean ratio of the bearing border width to the coronary band width, and the mean ratio of the solar surface width to the articular surface width. These results suggest that the AHSs corrected the contracted feet in these yearling horses.

No MeSH data available.


Related in: MedlinePlus