Abstract
Summary
Nonagenarians differ from patients aged 70–79 and 80–89 years in baseline characteristics, complication and mortality rates. Differences increased gradually with age. The results of this study can be used, in combination with the Almelo Hip Fracture Score, to deliver efficiently targeted orthogeriatric treatment to the right patient group.
Purpose
In previous literature, elderly with a hip fracture are frequently defined as ≥ 70 years. However, given the ageing population and the rapidly increasing number of ‘nonagenarians’ (aged ≥ 90 years), the question rises whether this definition is still actual. The aim of this study is to determine whether nonagenarians show differences compared to patients aged 70–79 years and patients aged 80–89 years in terms of patient characteristics, complications and mortality rate.
Methods
From April 2008 until December 2016, hip fracture patients aged ≥ 70 years treated according to our orthogeriatric treatment model were included. Patients were divided into three different groups based on age at admission: 70–79 years, 80–89 years and ≥ 90 years. Patient characteristics, risk of early mortality, complications and outcomes were analysed. Risk factors for 30-day mortality in nonagenarians were determined.
Results
A total of 1587 patients were included: 465 patients aged 70–80 years, 867 patients aged 80–90 years and 255 patients aged ≥ 90 years. Nonagenarians were more often female and had a lower haemoglobin level at admission. Prefracture, they were more often living in a nursing home, were more dependent in activities of daily living and mobility and had a higher risk of early mortality calculated with the Almelo Hip Fracture Score (AHFS). Post-operative, nonagenarians suffer significantly more often from delirium and anaemia. The 30-day mortality and 1-year mortality were significantly higher. Differences increased gradually with age.
Conclusion
Nonagenarians differ from patients aged 70–79 and 80–89 years in baseline characteristics, complication and mortality rates. Differences increased gradually with age. The results of this study can be used, in combination with the Almelo Hip Fracture Score, to deliver efficiently targeted orthogeriatric treatment to the right patient group.
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Appendix. Definitions of complications
Appendix. Definitions of complications
Anaemia: requiring transfusion based on the transfusion guidelines (CBO, 2007)
Arrhythmia: in comparison with electrocardiogram at admission, with need for treatment
Cerebrovascular accident: hemiparesis of hemiplegia, a CT cerebrum is performed
Delirium: based on the Delirium Observation Screening Scale, score above 3 and geriatrician diagnosis confirmed in medical record
Heart failure: clinical presentation and/or diagnosis confirmed on chest radiograph. Treatment started with diuretics
Myocardial infarction: elektrocardiogram abnormalities suspicious for ischemia and elevated cardiac troponin level
Pneumonia: clinical presentation and/or diagnosis confirmed on chest radiograph. Treatment started with antibiotics
Urinary tract infection: urine sediment with positive WBC and nitrite. Treatment started with antibiotics
Wound infection, superficial: diffuse redness, serous fluid leakage and no fever (RIVM, 2014)
Wound infection, deep: worse than superficial, need for revision
Readmission: admission within the first 30 days after discharge
Reoperation: operation within the first 60 days after initial surgery
Implant dislocation: diagnosis confirmed on XR, need for revision
Implant failure: diagnosis confirmed on XR, need for revision
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de Groot, R., Nijmeijer, W.S., Folbert, E.C. et al. ‘Nonagenarians’ with a hip fracture: is a different orthogeriatric treatment strategy necessary?. Arch Osteoporos 15, 19 (2020). https://doi.org/10.1007/s11657-020-0698-7
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DOI: https://doi.org/10.1007/s11657-020-0698-7