Page 51 - Manual of Equine Field Surgery

Periosteal Transection and Elevation 47

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Site of

surgical

approach

2

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Figu re 6-3 Occasionally, a rudimentary cartilagi-

nous ulna is noted, which should be transected using a

Figure 6-1 Incision site for periosteal transection No. 10 scalpel blade. When ossified, as is typical in older

on the lateral aspect of the left forelimb between the foals, a segmental ulnar ostectomy should be performed

common (1) and lateral (2) digital extensor tendons using rongeurs.
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starting at the level of the distal radial physis and

extending proximal 3 to 4 cm.

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Figure 6-4 The periosteum is initially transected

along the lateral hemicircumference of the bone. The

periosteum is then incised longitudinally extending

proximally 3 to 4 cm from and connecting with the hor-

izontal periosteal transection. The resulting paired tri-

angular shaped flaps of periosteum are elevated with a

periosteal elevator.

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Figure 6-2 Incision site for periosteal transection

011 the lateral aspect of the left tibia on either side in older foals, a segmental ulnar ostectomy should

( dotted lines) of the lateral digital extensor tendon (1) be performed using rongeurs (Figure 6-3). The

starting at the level of the distal tibial physis and extend- periosteum is then incised longitudinally extend-

ing proximal 3 to 4 cm. ing proximally 3 to 4 cm from and connecting

with the horizontal periosteal transection. The

the cranial and caudal planes. The subcutaneous resulting paired triangular shaped flaps of per-

tissues and tendons are elevated with curved iosteum are elevated with a periosteal elevator

hemostatic forceps. A No. 1211ooked scalpel blade (Figure 6-4). The subcutaneous tissues are sutured

is used to transect the periosteum along the lateral with absorbable material in a simple continuous

hemicircumference of the bone. When performed pattern, and the skin is sutured closed with intra-

for treatment of carpal valgus, the rudimentary dermal sutures or with simple interrupted sutures

cartilaginous ulna should also be transected using of No. 3-0 nonabsorbable monofilament suture

a No. l O scalpel blade. When ossified, as is typical material. The wound is bandaged routinely.

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