Correlation between vestibular function and hip fracture following falls in the elderly: a case-controlled study

Oz Zur*, Yitshal N. Berner, Eli Carmeli

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Objective: To examine vestibular function following falls in the elderly. Design: A case-controlled study to compare vestibular function in elderly people with hip fractures and elderly people with no prior hip fractures. Participants: One hundred and sixty-nine people aged 65 years or older took part in the study. Study Group A consisted of 84 hospitalised volunteers who had received hip surgery due to a fall and who were undergoing rehabilitation. Control Group B consisted of 85 volunteers from retirement homes with no prior history of hip fracture. Intervention: All participants underwent four clinical tests to determine their level of vestibular functioning in order to allow comparison between the groups. Three methods were used to test the vestibulo-ocular reflex (VOR), and one method was used to test benign paroxysmal positional vertigo. Results: Thirty-eight percent of the participants in Study Group A and 11% of the participants in Control Group B demonstrated a positive visual acuity test (P < 0.001). The odds ratio suggests that the participants of Study Group A were 4.83 [95% confidence interval (CI) 2.1 to 11.0] times more likely to present a positive static and dynamic visual acuity test than the participants of Control Group B, and 3.12 (95% CI 1.62 to 6.02) times more likely to have a positive head impulse test. There were no differences in the head shaking nystagmus test or the Dix-Hallpike test between groups, and no association between the side of the fracture and the side of the vestibular impairment. Conclusions: Study Group A exhibited greater VOR impairment than Control Group B. Therefore, impairment of this reflex may be considered as a risk factor for falls.

Original languageEnglish
Pages (from-to)208-213
Number of pages6
JournalPhysiotherapy
Volume92
Issue number4
DOIs
StatePublished - Dec 2006
Externally publishedYes

Funding

FundersFunder number
Association for the Planning and Development of Services for the Aged in Israel
Brookdale Institute of Gerontology and Human Development
ESHEL
Eli Shapira Charitable Foundations

    Keywords

    • Elderly
    • Falls
    • Vestibular test
    • Vestibulo-ocular reflex

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