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Is the Charlson comorbidity index a good predictor of mortality and adverse effects in proximal humerus fractures?
Ana Belén Fernández-Cortiñas1, Jesús Vidal Campos2, Xavier Paredes-Carnero3
1Department of Orthopaedic Surgery, Complutense University of Madrid, Madrid, Spain; Cosaga Hospital and Complexo Hospitalario Universitario de Ourense, Ourense, Spain.
Insights
The Charlson Comorbidity Index (CCI) effectively predicts mortality risk in patients with proximal humerus fractures (PHF). Higher CCI scores correlate with increased mortality and adverse events in PHF patients.
Area of Science:
- Orthopedics
- Geriatric Medicine
- Epidemiology
Background:
- Proximal humerus fractures (PHF) are common in the elderly, increasing morbidity and mortality.
- The Charlson Comorbidity Index (CCI) assesses comorbidity and predicts mortality risk.
Purpose of the Study:
- To evaluate the Charlson Comorbidity Index (CCI) as a predictor of mortality in patients with proximal humerus fractures (PHF).
- To determine the relationship between CCI and the incidence of adverse events in PHF patients.
Main Methods:
- Retrospective study with prospective data collection of 354 PHF patients (2013-2015).
- Minimum follow-up of 24 months (mean 51.1 months).
- Collected data on adverse events, mortality, and calculated CCI for all patients.
Main Results:
- Patients with CCI > 5 had a 4.6 times higher mortality risk (95% CI [2.4-9.0]) compared to those with CCI < 5.
- 40 (11%) patients died during follow-up (mean 4.3 years).
- Higher average CCI was associated with systemic complications (p=0.001) and increased mortality risk (HR=6.6; 95% CI [3.5-12.4]).
Conclusions:
- The CCI is a reliable predictor of mortality in patients with proximal humerus fractures.
- A correlation exists between CCI and the development of adverse effects in PHF patients.
- CCI should be considered in therapeutic decision-making for PHF patients.
Introduction:
Proximal humerus fractures (PHF) are frequent in elderly patients. This population also suffers from a series of associated comorbidities, and PHF increases morbidity and mortality. The Charlson Comorbidity Index (CCI) is a tool used for calculating comorbidity and therefore the mortality risk.
Hypothesis:
Our hypothesis is that CCI is a good predictor of mortality in patients suffering from PHF, and that there is a relationship between CCI and the development of adverse events.
Patients And Methods:
A retrospective study with prospective data collection of 354 patients who had been diagnosed and treated for a single PHF between August 1st, 2013 and July 31st, 2015 was carried out at our hospital. The minimum follow-up was 24 months (mean 51.1 months). This study included all patients regardless the severity of the fracture, the treatment performed (surgical or conservative treatment) or whether the patient had been admitted to the hospital or was treated as an outpatient. Adverse effects and mortality data were collected and the CCI was calculated.
Results:
Patients with high CCI (>5) had a higher mortality risk 4.6 (95% CI [2.4-9.0]) compared to those with CCI<5. During follow-up, 40 (11%) patients died, being the mean follow-up of the patients overall 4.3 years 95% CI [4.1-4.4]. Patients suffering from systemic complications had a higher CCI average (p=0.001) compared to those who did not present adverse effects (HR=6.6; 95% CI [3.5-12.4]). No statistically significant relationship between the type of fracture (p=0.473) and mortality was found.
Conclusion:
In our study CCI has proven to be a good predictor of mortality and there is a relationship between CCI and the development of adverse effects in patients suffering from PHF, which maybe should be taken into consideration in our therapeutic decision making.
Level Of Evidence:
IV, retrospective observational study.
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