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Late-onset isolated cerebral fat embolism syndrome after a simple tibial plateau fracture: a rare case report.

ABSTRACT: Fat embolism syndrome (FES) is a complication of long bone fractures that often occurs within 72 hours of injury. Early-onset isolated cerebral fat embolism is catastrophic and rarely reported. We herein present a rare case of delayed-onset isolated cerebral FES that developed 10 days after definite fixation of a left tibial plateau fracture. A 70-year-old woman was injured in a traffic accident and diagnosed with a left tibial plateau fracture. However, she developed sudden loss of consciousness (E4V1M1) and quadriplegia 10 days after fracture fixation. Her vital signs showed no respiratory distress. Diagnosis of isolated cerebral FES was made based on magnetic resonance imaging of the brain, the findings of which were compatible with the clinical neurological findings. After supportive care and rehabilitation, her consciousness became clear on the second day of admission, and her consciousness changed to E4V5M6. She gradually regained strength in her right limbs but had residual left limb paraplegia. Isolated cerebral FES should always be considered for patients who develop a change in consciousness, even beyond 72 hours after injury. Imaging may not initially show definitive abnormalities. Repeated magnetic resonance imaging should be considered if the initial clinical presentation does not fully meet Gurd's criteria.

SUBMITTER: Hsu TL

PROVIDER: S-EPMC8295961 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature

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Late-onset isolated cerebral fat embolism syndrome after a simple tibial plateau fracture: a rare case report.

Hsu Ta-Li TL Li Tien-Chi TC Lai Fei-Pi FP Ouhyoung Ming M Chang Chih-Hung CH Wang Cheng-Tzu CT

The Journal of international medical research 20210701 7

Fat embolism syndrome (FES) is a complication of long bone fractures that often occurs within 72 hours of injury. Early-onset isolated cerebral fat embolism is catastrophic and rarely reported. We herein present a rare case of delayed-onset isolated cerebral FES that developed 10 days after definite fixation of a left tibial plateau fracture. A 70-year-old woman was injured in a traffic accident and diagnosed with a left tibial plateau fracture. However, she developed sudden loss of consciousnes ...[more]

PMID: 34282643

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Project description:The most commonly accepted system of classification for tibia plateau fractures is that of Schatzker. Increasingly, both high energy injuries and atypical osteoporotic fragility failures have led to more complex, unusual and previously undescribed fracture patterns being recognized. We present a case of a patient with a previously unreported pattern of tibia plateau fracture and knee dislocation. We highlight the challenges confronted and present the management and the outcomes of his injury. A 28-year old male motorcyclist was involved in a head on collision with a truck and was transferred by helicopter to our level 1 major trauma centre emergency department. His injuries were a circumferential degloving injury to his left leg and a right lateral tibial plateau fracture/knee dislocation. The pattern of the lateral tibial plateau fracture was unique and did not fit any recognised classification system. The patient received a spanning external fixator initially and after latency of 12 days for soft tissue resuscitation he underwent definite fixation through an antero-lateral approach to the proximal tibia with two cannulated 6.5 mm partially threaded screws and an additional lateral proximal tibia plate in buttress mode. A hinged knee brace was applied with unrestricted range of motion post-operatively and free weight bearing were permitted post operatively. At the 6 months follow up, the patient walks without aids and with no limp. Examination revealed a stable joint and full range of motion. Plain radiographs revealed that the fracture healed with good alignment and the fixation remained stable. High energy injuries can lead to more complicated fracture patterns, which challenge the orthopaedic surgeons in their management. It is crucial to understand the individual fracture pattern and the possible challenges that may occur. This study reports a lateral tibia plateau fracture/dislocation which perhaps is best described as a reverse Schatzker IV type fracture.

Project description:BackgroundThe surgical treatment of posterolateral tibial plateau fractures involves a challenging and diverse set of considerations, one of which is the lack of proper and satisfactory internal fixations to purchase posterolateral fragments. Evaluating the configuration of internal fixations is often overlooked, despite it being important to outcomes of fracture fixation. This study aimed to (I) propose a new digital methodology of internal fixation evaluation that based on actual fracture cases and (II) evaluate the fixation effectiveness of four commercially available proximal tibial lateral plate-screw constructs for posterolateral fragments.MethodsTibial plateau fractures involving the posterolateral column were retrospectively reviewed. The reconstructed three-dimensional (3D) fracture models were virtually reduced, and targeted internal fixations were modeled digitally in specialized software. Four implants from three manufacturers (DePuy Synthes, Westchester, NY, USA; Zimmer, Warsaw, IN, USA; and Biomet, Warsaw, IN, USA) were placed on each fracture in an optimal position to simulate surgical fixation and quantitatively evaluate fixation effectiveness. The fragment was considered to be "captured" if it was purchased by at least two screws. The 3D fracture maps and heat maps were created by graphically superimposing all uncaptured fracture fragments onto a tibia template.ResultsThis study included 144 posterolateral tibial plateau fractures. When not using screws in a variable angle (VA) manner, the fixation effectiveness for posterolateral fragments was 58.3% for the DePuy Synthes locking compression plates (LCP), 47.9% for the DePuy Synthes VA-LCP, 50.7% for the Zimmer plate, and 43.8% for the Biomet plate. In contrast, the capturing rates boosted to 76.4% and 71.5% when utilizing VA screws in the DePuy Synthes VA-LCP and the Biomet plate. The high-frequency uncaptured areas tended to concentrate on the rim of the posterolateral wall and were mainly distributed in the posterior 1/2 to 3/4 of the parallel position of the fibula head.ConclusionsThe proposed new digital methodology was demonstrated feasible and may improve the quantitative evaluation of the implants and optimize the design of implants. The commercially available proximal tibial lateral plate-screw constructs were insufficient in capturing posterolateral fragments, and design-improved or additional implants may be necessitated.

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Late-onset isolated cerebral fat embolism syndrome after a simple tibial plateau fracture: a rare case report.

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Late-onset isolated cerebral fat embolism syndrome after a simple tibial plateau fracture: a rare case report.

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