Objective—To determine outcome of horses with
osteomyelitis of the sustentaculum tali (ST), with or
without associated tarsal sheath tenosynovitis, following
surgical débridement and lavage.
Animals—10 horses in which a diagnosis of
osteomyelitis of the ST had been made on the basis
of history, physical examination findings, and results
Procedure—Information on results of diagnostic testing,
surgical findings, postoperative treatment, and
short-term outcome was obtained from the medical
records. Long-term follow-up information was
obtained through reevaluation of horses at the teaching
hospital and telephone conversations with referring
veterinarians, owners, and trainers.
Results—Treatment consisted of surgical débridement,
intra- and postoperative lavage, and long-term
antimicrobial and anti-inflammatory treatment. Eight
horses had evidence of involvement of the tarsal
sheath. One horse was euthanatized after surgery
because of a lack of response to treatment; the other
9 were discharged from the hospital. Severity of
lameness had improved, but all still had grade-1 or -2
lameness at the time of discharge. One horse was
euthanatized after discharge because of contralateral
hind limb laminitis, and another horse was lost to follow-
up. Of the remaining 7 horses, 6 returned to their
previous use, and 1 was sound but retired for breeding
for unrelated reasons.
Conclusions and Clinical Relevance—Results suggest
that horses with osteomyelitis of the ST, with or
without concomitant tarsal sheath tenosynovitis, can
have an excellent to good outcome and may return to
their previous use after surgical débridement of
affected tissues and lavage of the tarsal sheath. (J Am
Vet Med Assoc 2001;219:341–345)
Objective—To determine clinical and radiographic abnormalities in and outcome of horses with fractures of the greater tubercle of the humerus and to develop a radiographic technique for obtaining a cranioproximal-craniodistal oblique projection of the proximal portion of the humerus in standing horses.
Design—Retrospective case series.
Procedures—Data collected from medical records included signalment, history, horse use, severity and duration of lameness, radiographic and ultrasonographic findings, treatment, and outcome.
Results—All horses had a history of acute, unilateral lameness. Twelve of 15 had visual or palpable abnormalities in the shoulder region. In 6 of 8 horses, the fracture could be seen on a cranioproximal-craniodistal projection of the proximal portion of the humerus. In 2 horses, this was the only projection on which the fracture could be seen, and in an additional 2, this was the projection on which the fracture could be seen most reliably. Ten horses underwent surgery (fragment removal, 7; open reduction and internal fixation, 2; and exploration without fragment removal, 1), and 5 were treated with variable periods of stall rest and turnout. Eleven horses returned to athletic use, including 9 of the 10 treated surgically and 2 of the 5 treated without surgery.
Conclusions and Clinical Relevance—Results suggested that horses with fractures of the greater tubercle of the humerus can return to athletic soundness following treatment and emphasized the need for obtaining a cranioproximal-craniodistal radiographic projection of the proximal portion of the humerus in horses suspected to have an injury in this region.