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Mortality rates and risk factors after low-trauma hip fracture in the largest university center in Romania

Ramona Dobre 1 2Dan Alexandru Niculescu 3 4Catalin Cirstoiu 5 6Gheorghe Popescu 7 8Catalina Poiana 3 4

Arch Osteoporos. 2021 Apr 8;16(1):64. doi: 10.1007/s11657-021-00934-5.

Abstract

We calculated in-hospital, 30-day, and 1-year mortality rates and analyzed potential mortality risk factors in 2742 patients with low-trauma hip fractures. We found a high mortality rate at 30 days and 1 year after hip fracture. The high mortality can be explained by a very high number of conservatively treated fractures.

Purpose: Data on mortality after low-trauma hip fracture in Romania is scarce and comes from a single-hospital study. Our aim was to calculate mortality rates and risk factors in all patients admitted for low-trauma hip fracture in the largest university medical center of Romania.

Methods: We retrospectively analyzed the charts of all patients (>40 years old) admitted for hip fracture in a 12-month period in hospitals with an Orthopedic Department in Bucharest, Romania, and surrounding Ilfov County and calculated the crude in-hospital, 30-day, and 1-year mortality rates after low-trauma hip fractures. A number of potential clinical risk factors for mortality were evaluated.

Results: We analyzed 2742 low-trauma hip fractures. The in-hospital, 30-day, and 1-year all-cause mortality rates were 4.26% (n=117), 9.59% (n=263), and 29.72% (n=815) respectively. Four hundred and fifty (16.41%) fractures were managed conservatively with a 1-year mortality HR of 3.05 (p<0.001) compared to surgically treated fractures. The 1-year mortality rate in conservatively treated fractures was 56.44% compared to 24.47% in surgically treated fractures. Age, male sex, length of stay in hospital, day of surgery, post-surgical complications, and late surgery were significantly associated (p<0.001) with mortality after hip fracture. The lowest 1-year mortality rate was in surgically treated patients with a length of stay in hospital between 6 and 10 days.

Conclusion: We found a high mortality rate at 30 days and 1 year after low-trauma hip fracture. The high mortality rates can be attributable, in part, to the high number of conservatively treated fractures.