Objective—To determine clinical findings in and outcome
of horses with fractures of the second or fourth
metacarpal or metatarsal bone that underwent segmental
ostectomy, leaving the proximal and distal portions
of the bone undisturbed.
Design—Retrospective case series.
Procedures—Medical records were reviewed, and
information on signalment, affected bone, lesion
type, surgical procedure, amount of bone removed,
and surgical and postsurgical complications was
obtained. Follow-up information was obtained
through telephone conversations with owners, trainers,
and referring veterinarians.
Results—One horse had a fracture involving the distal
third of the second metacarpal bone; 13 had fractures
involving the middle third of the second
metacarpal bone (n = 4), fourth metacarpal bone (5),
or fourth metatarsal bone (4); and 3 had fractures
involving the proximal third of the second (2) or fourth
(1) metacarpal bone. Affected portions of the bones
were surgically resected, leaving the proximal and distal
portions undisturbed. All horses returned to previous
performance levels without evidence of lameness.
Cosmetic results were good to excellent.
Conclusions and Clinical Relevance—Results suggest
that horses with a complicated injury of the proximal,
middle, or distal portion of the second or fourth
metacarpal or metatarsal bone may be successfully
treated by means of segmental ostectomy of the
abnormal portion of the bone. (J Am Vet Med Assoc