Page 1104 - Adams and Stashak's Lameness in Horses, 7th Edition

1070 Chapter 10

Prognosis 14. Hartzel DK, Arnoczky SP, Kilfoyle SJ, et al. Myofibroblasts in the
accessory ligament (distal check ligament) and the deep digital
In general, the prognosis is much better for foals with
VetBooks.ir DIP joint flexural deformities than older horses with 15. Jansson N, Sonnichsen HV. Acquired flexural deformity of the
flexor tendon in foals. Am J Vet Res 2001;62:823–827.
distal interphalangeal joint in horses: treatment by desmotomy of
MCP joint deformities. Most reports indicate that young
the accessory ligament of the deep digital flexor tendon. A
(under 5–6 months) horses with a DIP joint deformity
retrospective study. J Equine Vet Sci 1995;15:353–356.
treated surgically have a better prognosis for future ath­ 16. Kasper CA, Clayton HM, Wright AK, et al. Effects of high doses
letic use than older horses. 29,35 In one report, 33 of 40 of oxytetracycline on metacarpophalangeal joint kinematics in
neonatal foals. J Am Vet Med Assoc 1995;207:71–73.
horses treated with an inferior check desmotomy were 17. Kretzschmar BH, Desjardins MR. Clinical evaluation of 49 teno­
used for their intended purpose. In addition, foals scopically assisted superior check ligament desmotomies in 27
33
treated surgically with an inferior check desmotomy had horses. Proc Am Assoc Equine Pract 2001;47:484–487.
an improved prognosis for racing than those treated con­ 18. Levine DG. The normal and abnormal equine neonatal musculoskel­
servatively. In another report, Thoroughbreds with a etal system. Vet Clin North Am Equine Pract 2015;31:601–613.
29
mean age of 151 days that underwent inferior check liga­ 19. Lokai MD. Case selection for medical management of congenital
flexural deformities in foals. Equine Pract 1992;14:23–25.
ment desmotomy were less likely to start in a race com­ 20. Lokai MD, Meyer RJ. Preliminary observations in oxytetracycline
pared with their maternal siblings. However, for those treatment of congenital flexural deformities in foals. Mod Vet
who raced, the longevity of career and earnings per race Pract 1985;66:237–239.
were not different than controls. In contrast, the 21. Madison JB, Garber JL, Rice B, et al. Effect of oxytetracycline on
34
metacarpophalangeal and distal interphalangeal joint angles in
response to surgery is often unpredictable in horses with newborn foals. J Am Vet Med Assoc 1994;204:246–254.
MCP joint deformities, and these horses often have a 22. von Matthiessen PW. Treating congenital limb deformities in the
guarded to poor prognosis for soundness. In one report, foal. Vet Med 1993;88:989–994.
horses with mild and moderate MCP joint deformities 23. McIlwraith CW. Diseases of joints, tendons, ligaments and related
structures. In Adams’ Lameness in Horses, 5th ed. Stashak TS, ed.
returned to useful work, but none of the horses with a Lippincott Williams and Wilkins, Philadelphia, 2002;459–644.
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severe flexural deformity became athletes. Similar to 24. McIlwraith CW, Fessler JF. Evaluation of inferior check ligament
DIP joint deformities, it is the author’s opinion that MCP desmotomy for treatment of acquired flexor tendon contracture
joint deformities respond much better to either nonsurgi­ in the horse. J Am Vet Med Assoc 1978;294:293–298.
cal or surgical treatments in younger horses. The sooner 25. McIlwraith CW, James LF. Limb deformities in foals associated
with ingestion of locoweed by mares. J Am Vet Med Assoc
treatment can be initiated in either type of deformity, the 1982;181:255–258.
better the prognosis for correction and future athletic use. 26. Myers VS, Gordon GW. Ruptured common digital extensor ten­
dons associated with contracted flexor tendons in foals. Proc Am
Assoc Equine Pract 1976;22:2167–2174.
27. O’Grady SE. Routine trimming and therapeutic farriery in foals.
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