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首页> 外文期刊>AJR: American Journal of Roentgenology : Including Diagnostic Radiology, Radiation Oncology, Nuclear Medicine, Ultrasonography and Related Basic Sciences >Knee dislocation in overweight patients.
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Knee dislocation in overweight patients.

机译：超重患者膝关节脱位。

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摘要

OBJECTIVE: The purpose of this study was to evaluate the incidence, cause, injury patterns, and MRI findings in knee dislocation in patients with normal and increased body mass index and to determine whether obesity interferes with knee MRI examinations. MATERIALS AND METHODS: A retrospective study of the period from 2000 to 2007 (90 months) was performed at a level 1 trauma center, finding a total of 24 patients who had sustained a knee dislocation. RESULTS: Twenty-two of the 24 patients underwent surgery and 19 patients had an MRI examination of diagnostic quality before surgery. Of the 24 patients, 11 had a body mass index greater than 25 and had knee dislocation due to low-energy trauma (nine due to a simple fall, two to a noncontact sport). Two of these 11 patients were morbidly obese (body mass index>40). These patients had no injuries to the popliteal tendon and they had no irreversible peroneal nerve injuries. Otherwise, the patients' injuries were in agreement with previous knee dislocation studies. Obesity did not interfere with knee MRI examinations. On the basis of the population served by our trauma center, the annual incidence of knee dislocation due to low-energy trauma in overweight patients is about 1.0 per million. CONCLUSION: The annual incidence in obese patients of knee dislocation due to low-energy trauma is not insignificant at a level 1 trauma center. As the prevalence of obesity increases, the injury patterns seen in emergency departments may change. The radiologist should be aware that even after a simple fall, overweight patients may have a knee dislocation.
机译：目的：本研究旨在评估体重指数正常和升高的患者膝关节脱位的发生率，病因，损伤方式和MRI表现，并确定肥胖症是否会干扰膝关节MRI检查。材料与方法：在1级创伤中心进行了2000年至2007年（90个月）的回顾性研究，共发现24例膝关节脱位患者。结果：24例患者中有22例接受了手术治疗，而19例患者在术前接受了MRI诊断质量检查。在这24例患者中，有11例的体重指数大于25，并且由于低能量创伤而导致膝关节脱位（其中9例因单纯跌倒而导致，其中2例因非接触性运动）。这11名患者中有2名病态肥胖（体重指数> 40）。这些患者没有the肌腱受伤，也没有不可逆的腓神经损伤。否则，患者的受伤与先前的膝关节脱位研究一致。肥胖并未干扰膝盖MRI检查。根据我们创伤中心服务的人口，超重患者因低能量创伤导致的膝关节脱位的年发生率约为百万分之1.0。结论：在1级创伤中心，肥胖患者因低能量创伤导致的膝关节脱位的年发病率并非微不足道。随着肥胖症患病率的增加，急诊科所见的伤害方式可能会发生变化。放射科医生应注意，即使是简单跌倒后，超重患者也可能会出现膝关节脱位。

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