12/03/2022
In one of our recent cases, an elderly patient with mild dementia suffered a hip fracture and passed away 6 months later.
Did the patient’s hip fracture cause her death?
Many authoritative sources show strong evidence that hip fractures in the elderly cause a notable spike in 6 month and 1 year mortality rates. Roche et al (2005) prospectively evaluated 2448 patients with hip fracture over a four-year period. Mortality was 33% at one year.
Patients with dementia have additional challenges in their recovery from a hip fracture which further increases the risk of mortality. A 2018 study published in the Journal of Orthopaedic Surgery and Research looked at mortality rates among dementia patients after hip fracture surgery. They found that dementia patients had a 39% 1-year mortality rate following hip fracture surgery. It was noted that “Patients with dementia usually have less activity and poor self-care ability, which increased postoperative complications, such as surgical site infection, urinary tract infection, and respiratory complications.” (Bai et al, 2018).
A more recent, 2022 study was presented to the Congress of the European Academy of Neurology by Swedish researchers. The study included 122,614 participants and it was found that patients with dementia are six times more likely to die after sustaining a hip fracture than are those without dementia. (Medscape, 2022).
The patient in our case manifested a pattern of decline after her injury. She suffered multiple UTIs and experienced a nose-dive in her physical and cognitive function after each infection. She was very weak and her responsiveness to physical therapy became greatly limited.
This wasn’t the first case we’ve reviewed where an elderly patient died months after a hip fracture. Hip fractures are often catastrophic in the elderly.
Sources:
https://pubmed.ncbi.nlm.nih.gov/16299013/
https://josr-online.biomedcentral.com/articles/10.1186/s13018-018-0988-6
https://www.medscape.com/viewarticle/976645
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