Larsen Peter, Elsoe Rasmus
Department of Occupational Therapy and Physiotherapy, Aalborg University Hospital, Aalborg, Denmark.
Department of Orthopaedic Surgery, Aalborg University Hospital, Aalborg, Denmark.
Injury. 2018 Oct;49(10):1901-1904. doi: 10.1016/j.injury.2018.07.003. Epub 2018 Jul 5.
The modern literature includes only limited information regarding mortality rates and cumulative survival following patella fractures. The aim was to report the 30-day, six-month, and one-year mortality of patients with patella fractures and compare this to the mortality of a matched reference population.
All patients who sustained a patella fracture in Denmark between 1996 and 2000 were included in the study. The survival status of these patients was monitored until 2015. We compare the mortality with a ten-fold reference population matched on age and gender without a prior patella fracture.
6096 patients were treated for 6114 patella fractures. The mean age of patients was 48.9 years. The overall mortality rates at 30 days, six months, and one year were 0.7%, 1.8%, and 2.8%. The mortality rates for patients > 65 years at 30 days, six months, and one year were 1.3%, 3.9%, and 6.2%. The mortality rates for patients at ≤ 65 years at 30 days, six months, and one year were 0.4%, 0.9%, and 1.3%. Compared to the matched reference population, the relative risk of mortality in patients > 65 years at 30 days, six months, and one year were 1.9 (95% CI 1.2-2.9), 1.0 (95% CI 0.8-1.3), and 0.9 (95% CI 0.7-1.1).
The overall one-year mortality rate of patella fractures was 2.8% and this was increased to 6.2% in patients older than 65 years. In elderly patients above 65 years, the relative risk of death was 0.9, indicating that patella fractures in elderly patients were not associated with an increased mortality rate.
现代文献中关于髌骨骨折后的死亡率和累积生存率的信息有限。本研究旨在报告髌骨骨折患者的30天、6个月和1年死亡率，并将其与匹配的参考人群的死亡率进行比较。
纳入1996年至2000年期间在丹麦发生髌骨骨折的所有患者。对这些患者的生存状况进行监测直至2015年。我们将这些患者的死亡率与年龄和性别匹配、无既往髌骨骨折史的十倍参考人群的死亡率进行比较。
6096例患者接受了6114例髌骨骨折治疗。患者的平均年龄为48.9岁。30天、6个月和1年的总体死亡率分别为0.7%、1.8%和2.8%。65岁以上患者30天、6个月和1年的死亡率分别为1.3%、3.9%和6.2%。65岁及以下患者30天、6个月和1年的死亡率分别为0.4%、0.9%和1.3%。与匹配的参考人群相比，65岁以上患者30天、6个月和1年的死亡相对风险分别为1.9（95%可信区间1.2 - 2.9）、1.0（95%可信区间0.8 - 1.3）和0.9（95%可信区间0.7 - 1.1）。
髌骨骨折的总体1年死亡率为2.8%，65岁以上患者的这一比例增至6.2%。在65岁以上的老年患者中，死亡相对风险为0.9，表明老年患者的髌骨骨折与死亡率增加无关。
