Objective—To evaluate the effect of hemi-circumferential
periosteal transection and elevation (HCPTE) in
foals with experimentally induced angular limb deformities.
Animals—10 healthy foals.
Procedure—When foals were 30 days old, transphyseal
bridge implants were placed on the lateral
aspects of both distal radial physes. At 90 days of age
(or when 15 degrees of angulation had developed),
implants were removed, and HCPTE was performed
on 1 limb. Foals were confined in small pens after
surgery; the front feet of the foals were rasped weekly
to maintain medial-to-lateral hoof wall balance.
Dorsopalmar radiographic projections of the carpi
were obtained before HCPTE and 2, 4, 6, 8, and 48
Results—At the time of transphyseal bridge removal
and HCPTE, both treated and control limbs were
observed to have a significantly greater carpal valgus,
compared with the initial degree of angulation at 30
days of age. Following HCPTE or sham surgery, all
limbs straightened over the subsequent 2 months of
the study. Median angulation was not significantly different
between treated and control limbs at any time
during the study.
Conclusions and Clinical Relevance—Results suggest
that in foals with experimentally induced limb deformities,
HCPTE was no more effective than stall confinement
and hoof trimming alone for correction of the
deformity. (J Am Vet Med Assoc 2002;221:536–540)