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2017 ; 9
(ä): 5-9
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Limb salvage and reconstruction following a zebra attack
#MMPMID29644315
Carlson JT
; Yuen JC
; Smeds MR
Trauma Case Rep
2017[Jun]; 9
(ä): 5-9
PMID29644315
show ga
Animal bites are fairly rare events but can cause devastating traumatic injuries
to the victim. In addition to the soft tissue, vascular, and orthopedic trauma
inflicted by these occurrences, bite injuries also have the potential to
introduce an inoculum of microbes, which may progress to an infection if not
treated properly and expeditiously. We present the case of a healthy male who
sustained multiple bite wounds from a domestic zebra to his left upper extremity.
This attack caused severe damage, including devascularization of the arm at the
brachial artery, disruption of the distal biceps and brachialis, stripping of the
forearm nerves, and shearing of the overlying soft tissue. The patient was taken
emergently to the operating room for revascularization of the extremity utilizing
a vein bypass graft. The soft tissue injuries were addressed with numerous
irrigation and debridement procedures, during which coverage of the vein bypass
graft was obtained using a variety of techniques, including skin flaps,
musculocutaneous advancements, and the application of an acellular dermal matrix
(AlloDerm) and a collagen-glycosaminoglycan matrix (Integra). Wound cultures
obtained intra-operatively during the irrigation and debridement procedures were
notable for the growth of multiple microbes, including Rhodococcus spp., which
have been documented to cause infection in immunocompromised patients. The
patient in this case was treated with a prolonged course of antibiotics, and
wound cultures negative for microbial growth were eventually obtained prior to
final closure of his wound. The patient then underwent successful biceps
reconstruction with a pedicled latissimus dorsi muscle transfer. This case
documents the extraordinary multidisciplinary approach provided in the salvage,
management, and eventual reconstruction of a mangled left upper extremity that
had sustained devastating traumatic injuries resulting from a rather unusual
source.