Is COVID-19 affecting the incidence of hip fractures?

Analysis of the Effects of COVID-19 on Hip Fractures in Korea Without Lockdown: Interrupted Time Series Analysis Using a Nationwide Cohort

BACKGROUND

The purpose of this study was to investigate the change in the incidence rate, length of hospital stay (LOS), in-hospital mortality rate, and surgical method of hip fractures during the coronavirus disease 2019 (COVID-19) pandemic in South Korea where lockdown restrictions were not implemented.

METHODS

We calculated the expected values of the incidence of hip fractures, in-hospital mortality and LOS of hip fracture patients in 2020 (COVID period) based hip fracture database of the Korean National Health Insurance Review and Assessment (HIRA) during a 9-year period from 2011 to 2019 (pre-COVID period). A generalized estimating equation model with Poisson distribution and logarithmic link function was used to estimate adjusted annual percent change (PC) of incidence rate and 95% confidence intervals (CIs). Then, we compared the annual incidence, in-hospital mortality rate and LOS in 2020 with the expected values.

RESULTS

The overall incidence rate of hip fracture in 2020 was not significantly different from the expected value (PC, -5%; 95% CI, -13 to 4; P = 0.280). In women, the incidence rate of hip fracture in age groups over 70 years was smaller than the predicted value (P < 0.001). The in-hospital mortality rate was not significantly different from the expected value (PC, 5%; 95% CI, -8 to 19; P = 0.461). The mean LOS was larger than the expected value by 2% (PC, 2%; 95% CI, 1 to 3; P < 0.001). In intertrochanteric fracture, the proportion of internal fixation was smaller than the predicted value by 2% (PC, -2%; 95% CI, -3 to -1; P < 0.001), and that of hemiarthroplasty was larger than the predicted value by 8% (PC, 8%; 95% CI, 4 to 14; P < 0.001).

CONCLUSIONS

In 2020, the incidence rate of hip fracture did not significantly decrease, and in-hospital mortality rate did not significantly increase compared to the expected rates, which were projected based on the HIRA hip fracture data from 2011 to 2019. Only LOS increased slightly.

Decreasing incidence rates of osteoporotic hip fractures in Ecuador during the COVID-19 pandemic

We aimed at comparing the incidence of hip fractures in older adults from Ecuador before and during the COVID-19 pandemic. There was a significant reduction in the number of hip fractures, with no change in the length of hospital stay, mortality, and case-fatality rate, during the period of social isolation.

INTRODUCTION

The impact that the COVID-19 pandemic has had on fragility fractures is being recently evaluated in the literature. Despite this, data from Latin America in this regard is scarce.

PURPOSE

This study aims to compare the incidence rate of hip fractures before and during the COVID-19 pandemic in older adults who received care in the public and private health system of Ecuador.

METHODS

This was a descriptive and retrospective study that analyzed data of individuals aged 60 years and older who had hip fractures before and during the COVID-19 pandemic. The information was obtained from the National Hospital Discharge Yearbook. We calculated the incidence, average length of hospital stay, mortality, and case-fatality rate associated with hip fractures.

RESULTS

There was a significant reduction in the incidence of hip fractures in adults 60 or older during the period of social isolation due to COVID-19. Between March and December 2019, there was an incidence of 152 hip fractures per 100,000 inhabitants, whereas during the same period but in 2020 in the incidence was 110 per 100,000 inhabitants (p < 0.0001). The main decrease was observed in women aged 80 or more. The average length of hospital stay did not show significant changes. Mortality displayed a non-significant decrease (p = 0.14), although this decrease was significant among women (p = 0.02). Case-fatality rate showed a non-significant increase for the whole group (p = 0.68) and for men (p = 0.09).

CONCLUSION

Hip fracture rates decreased significantly in adults aged 60 and older in 2020 compared to 2019. This decrease of hip fracture incidence rates was mainly due to the reductions observed in older people and women. The average length of hospital stay, mortality, and case-fatality rate associated with hip fractures did not show significant changes during the pandemic.

Effects of COVID-19 confinement on the incidence and mortality of major osteoporotic fractures: an observational study in Catalonia, Spain

There is little information on how the COVID-19 lockdown influenced the epidemiology of major osteoporotic fractures (MOF). We analyzed the incidence and mortality of MOF in 2020 compared with 2018-2019 in Catalonia, Spain. The incidence of MOF decreased steeply, and post-fracture mortality increased during the lockdown and throughout 2020.

PURPOSE

To analyze the effect of the COVID-19 pandemic and lockdown on major osteoporotic fracture (MOF) incidence and mortality in Catalonia in 2020 and describe how age, sex, and the prior comorbidity burden influenced the epidemiology of MOF types.

METHODS

In this retrospective observational study, data on age and sex in people aged ≥ 50 years with a new diagnosis of MOF in 2018, 2019, and 2020 were collected. Average daily rates (ADR) were estimated overall and for five MOF: hip, distal forearm, proximal humerus, vertebrae, and pelvis. Morbidity was assessed using Adjusted Morbidity Groups. ADR in 2020 and the previous years were compared for overall and site-specific MOF in four consecutive time periods: pre-confinement, lockdown, deconfinement, and post-confinement. Thirty-day post-fracture mortality was assessed. COVID-19-related mortality was obtained from the Catalan COVID-19 register.

RESULTS

From 2018 to 2020, there were 86,412 MOF. The ADR of MOF initially increased in 2020 before the pandemic, decreased steeply during lockdown, and remained lower in the rest of the year. The decrease was steeper in vertebral, pelvic and arm fractures, and lower in hip fractures. Differences were more pronounced in younger age groups and people with fewer comorbidities. Mortality increased throughout 2020, reaching a 2.5-fold increase during lockdown. Excess mortality was directly associated with COVID-19.

CONCLUSIONS

Mobility restrictions due to COVID-19 were associated with a reduction in MOF incidence in Catalonia, especially in younger people and in non-hip fractures. Post-fracture mortality was higher than in previous years due to the high COVID-19 mortality in the elderly.

Impact of the COVID-19 pandemic on osteoporotic hip fractures in Chile

The study analyzes whether the COVID-19 pandemic affects annual hip fractures (HF) rates and weekly emergency department (ED) consultations and hospitalizations due to trauma in older people. During the COVID-19 pandemic, HF rates and ED consultation and hospitalization rates due to trauma decreased.

PURPOSE

To describe the effect of the COVID-19 pandemic on annual HF rates and weekly ED consultation and hospitalization rates due to trauma in Chile in 2020, compared to 2016-2019.

METHODS

A retrospective study was conducted based on data from Chile's Department of Statistics and Health Information. Annual HF admissions, weekly ED consultations and hospitalizations due to trauma were described for the years 2016-2020, grouping the years 2016-2019 to compare them with 2020. Rates were calculated per 100.000 inhabitants.

RESULTS

From 2016 to 2020, a total of 35.050 patients aged ≥ 65 years were hospitalized in Chile with a diagnosis of HF, with the lowest number of admissions in 2020 (6.423). During 2020, annual HF rate was 273.6/100.000, representing a decrease of 18.5% compared to the average annual HF rate of 2016-2019 (335.7/100.000). In 2020, the weekly consultation rate due to trauma in older adults decreased by 20.8% and the weekly hospitalization rate due to trauma in older adults decreased by 18.5%.

CONCLUSION

During the COVID-19 pandemic, osteoporotic HF rates decreased, along with ED consultation and hospitalization rates due to trauma in older adults. This could be a result of mobility restrictions and a significant increase in the proportion of self-reliant older adults in the Chilean population.

Epidemiology and postoperative complications of hip fracture during COVID-19 pandemic

Objectives

This study aims to analyze the changes in epidemiology and the postoperative outcomes in patients with hip fractures during the COVID-19 pandemic compared to non-pandemic period.

Methods

According to the date of declaration of “mandatory social distance”, we separated patients into 2 groups over a 1-year period: Period A and period B. We assessed the overall time to surgery, delay in surgery (> 24 hours, > 36 hours, and > 48 hours), reason of delay, length of hospital stay, type of surgery, and postoperative complications.

Results

The number of operated hip fractures and other trauma decreased in period B compared with period A by 17%, and 23%, respectively. The number of patients with delay in surgery by > 24 hours and > 36 hours was significantly higher in period B compared to that in period A (P = 0.035, P = 0.012, respectively). However, no significant difference in the number of delay in surgery > 48 hours and mean overall time to surgery between the 2 groups was observed (P = 0.856, P = 0.399, respectively). There was no difference in the duration of hospital stay, type of surgery, and postoperative complications between periods A and B.

Conclusions

During the COVID-19 pandemic, the decrease in hip fractures was relatively fewer compared to the decrease in orthopedic trauma. Although hip fracture surgeries were delayed for over 24 hours and 36 hours, there was no increase in delay for over 48 hours and postoperative complications.

Incidence of hip fractures during the COVID-19 pandemic in the Brazilian public health care system

This study compared the incidence of hip fractures before and during the COVID-19 pandemic in Brazil, aged ≥ 60 years excluding all fractures related to any trauma. There was a significant reduction in the number of hip fractures and the length of hospital stay during the period of social isolation.

PURPOSE

To compare the incidence of hip fractures before and during the COVID-19 pandemic in Brazil and in the main regions of the country in patients covered by the Brazilian public health care system (SUS). As far as we are aware, no studies have evaluated the impact of COVID-19 pandemic on hip fractures in Brazil.

METHODS

Descriptive, cross-sectional study in individuals aged ≥ 60 years who presented with a hip fracture before and during the COVID-19 pandemic and received treatment covered by the SUS. The data were collected from the DATASUS electronic database. We calculated the incidence, mortality, lethality, duration of hospitalization, and average reimbursement associated with the treatment of the fractures.

RESULTS

There was a significant reduction in the incidence of hip fractures among individuals aged ≥ 60 years in Brazil during the period of social isolation due to COVID-19. The observed incidence was 15.58/10,000 inhabitants between March and December 2020 and 16.07/10,000 inhabitants in the same period of 2019 (p < 0.005; main decline observed in the age groups > 70 years). The average length of hospital stay reduced from 8.35 days in 2019 to 7.33 days in 2020, following a similar pattern of reduction across all regions. The Southeast was the only region with a significant reduction in mortality during the pandemic (relative risk 0.90, 95% confidence interval 0.84-0.97, p < 0.005).

CONCLUSION

During the COVID-19 pandemic in Brazil, the incidence rate of hip fractures and the associated duration of hospital stay decreased among patients aged ≥ 60 years.

One year of the COVID-19 pandemic in Poland-the incidence of osteoporotic forearm, arm, and hip fractures

The study attempts to analyse whether the COVID-19 pandemic affected the incidence of forearm, arm, and hip fractures during a 1-year observation period. Additionally, changes in the overall treatment costs of those fractures were estimated. During the COVID-19 pandemic, the incidence of forearm, arm, and hip fractures remained statistically unchanged, neither were any significant changes observed in the expenditure, incurred for the treatment of the fracture cases.

PURPOSE

The purpose of the study was to find out and evaluate if the consequences of COVID-19 pandemic (including lockdown and the fear of infection) influenced the incidence of osteoporotic forearm, arm, and hip fractures and to estimate the changes in the costs of their management during one-year observation period.

METHODS

The incidence of forearm, arm, and hip fractures was collected for the population, aged ≥ 50, residing at the district of Tarnowskie Góry and the Town of Piekary Śląskie, Poland, during 1 year of COVID-19 pandemic (from March 16th 2020 to March 15th 2021). The obtained results were compared with the number of corresponding limb fractures, recorded before the pandemic during five consecutive yearly periods, each starting from 16th March and ending on the 15th March of a subsequent year, the entire period covering the years 2015-2020. The rates of the analysed fractures were calculated per 100,000 inhabitants together with their economic impact.

RESULTS

The mean numbers and the incidence rates of upper extremity fractures were slightly lower during the COVID-19 pandemic than in the previous 5 years, whereas hip fracture figures remained almost stable. The observed changes were not statistically significant. That annual observation revealed a slight decrease in expenditure volumes, when compared to the analysed period before the pandemic (-0.33%).

CONCLUSION

The decreased incidence rate of forearm, arm, and hip fractures, observed during the first months of the COVID-19 pandemic, was not statistically significant in the 1-year observation. After several weeks/months under the shock, caused by government limitations and the fear of infection, the number of patients remained unchanged during the one-year observation.

Mortality escalates in patients of proximal femoral fractures with COVID-19: A systematic review and meta-analysis of 35 studies on 4255 patients

BACKGROUND

Concerns have been raised about the escalated mortality in patients of proximal femoral fractures (PPFs) with COVID-19. A meta-analysis to evaluate the mortality in patients with PPFs managed during the current COVID-19 pandemic was conducted.

METHODS

A systematic review and meta-analysis of all published studies were conducted with a search on PubMed, Scopus, Web of Science, and Cochrane Library databases using appropriate keywords from January 01, 2020 to January 29, 2021.

RESULTS

35 relevant studies reporting 4255 patients with hip fracture in the current ongoing pandemic, out of which 692 patients were COVID-19 positive. Twenty studies reported mortality and other relevant statistics on hip fracture patients with and without COVID-19 (4123 hip fracture patients in the year 2020-21, out of which 560 had or were suspected of having COVID -19). A meta-analysis of mortality statistics in patients with and without COVID revealed increased odds of mortality among COVID patients [odds ratio (OR) 6.31, 95% confidence interval (CI) [5.09, 7.83] and meta-analysis on the subgroup of surgically treated patients also showed markedly increased mortality risk among those with COVID-19 (OR) 5.99, 95% CI [3.88,9.24].

CONCLUSION

The mortality risk is markedly increased in hip fracture with concomitant COVID-19 as compared to those without it. This increased risk persisted in those managed surgically. It could be due to the inflammation induced by the fracture or surgery for fracture fixation, further exacerbating inflammation, leading to cytokine storm. It is imperative that such patients are informed regarding increased mortality risk during the consent and shared decision-making process.

Delayed hospital admission for traumatic hip fractures during the COVID-19 pandemic

BACKGROUND

Concerns of contracting the highly contagious disease COVID-19 have led to a reluctance in seeking medical attention, which may contribute to delayed hospital arrival among traumatic patients. The study objective was to describe differences in time from injury to arrival for patients with traumatic hip fractures admitted during the pandemic to pre-pandemic patients.

MATERIALS AND METHODS

This retrospective cohort study at six level I trauma centers included patients with traumatic hip fractures. Patients with a non-fall mechanism and those who were transferred in were excluded. Patients admitted 16 March 2019-30 June 2019 were in the "pre-pandemic" group, patients were admitted 16 March 2020-30 June 2020 were in the "pandemic" group. The primary outcome was time from injury to arrival. Secondary outcomes were time from arrival to surgical intervention, hospital length of stay (HLOS), and mortality.

RESULTS

There were 703 patients, 352 (50.1%) pre-pandemic and 351 (49.9%) during the pandemic. Overall, 66.5% were female and the median age was 82 years old. Patients were similar in age, race, gender, and injury severity score. The median time from injury to hospital arrival was statistically shorter for pre-pandemic patients when compared to pandemic patients, 79.5 (56, 194.5) min vs. 91 (59, 420), p = 0.04. The time from arrival to surgical intervention (p = 0.64) was statistically similar between groups. For both groups, the median HLOS was 5 days, p = 0.45. In-hospital mortality was significantly higher during the pandemic, 1.1% vs 3.4%, p = 0.04.

CONCLUSIONS

While time from injury to hospital arrival was statistically longer during the pandemic, the difference may not be clinically important. Time from arrival to surgical intervention remained similar, despite changes made to prevent COVID-19 transmission.