Necrotizing fasciitis is a soft tissue infection that habitually originates from the fascial sheaths, expands at a volant pace, leads to extensive necrosis of the subcutaneous tissues, and eventually ends up in a life-threatening condition with notably elevated amputation and mortality rates. Factors that induce interruption of skin integrity, such as trauma or intravenous drug use, are the most common inciting events. Specific clinical signs heralding its presence are usually absent in the early stages, often resulting in misdiagnosis. Early recognition, prompt and aggressive surgical debridement, antibiotic use, and supportive care constitute the fundamental principles to lean on for a better prognosis. Necrotizing fasciitis of the upper extremity is relatively rare and consequently holds a limited place in the literature. Only a few studies assess it as a separate entity, with most of them being case reports or small case series. We, therefore, performed a review of the current literature, to assemble the dispersed results of different studies and clarify the various aspects of upper limb necrotizing fasciitis. In this systematic review, we present the epidemiological data, the causative events, the most frequent underlying diseases, the risk factors, the amputation and mortality rates, the pathogenic microorganisms, the clinical characteristics, the diagnostic tools, the medical and surgical management concerning necrotizing fasciitis of the upper limb. Finally, the results indicating its differentiation compared to necrotizing fasciitis of other anatomic sites are remarkably highlighted.
BackgroundWe aimed to systematically review all papers examining floating elbow injuries in adults.
Material and MethodsMEDLINE, Cochrane Bone, Joint and Muscle Trauma, PROSPERO, and Scopus databases were searched up to August 31, 2020. Included studies had as a primary or secondary outcome the functional outcomes after a floating elbow injury on patients aged 17 or older. Methodological quality of the included studies was assessed.
ResultsThirty-two studies met the inclusion criteria. Patients were male at 73,1%. Median age of the patients was 33,0 years and median time of follow-up was 19,5 months. Articular surfaces were affected at 24,4%, whereas 51,2% of the fractures was open. Approximately, 34,9% of the patients suffered neural injury. Ipsilateral and multiple-system injuries were present in 34,8% and 76,3 % of the cases, respectively. Multivariate analysis showed that intra-articular and nerve damage, open fractures and multi-system injuries affected range of motion, union and complications. Sex, age, vascular damage and ipsilateral injuries of the patient did not adversely impact the outcome. All of the included studies were classified as very-low quality of evidence.
ConclusionsThe current knowledge regarding the characteristics of floating elbow in adults is limited, albeit we were able to provide possible pre-operative predictor outcomes.
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