Stability of extracapsular hip fracture: Does it affect rehabilitation outcome of post-acute patients?

Publication date: July 2018

Source: Injury, Volume 49, Issue 7

Author(s): Avital Hershkovitz, Shai Brill, Lior Neuhaus Sulam, Tal Luria, Snir Heller

Abstract

Background

Various factors have been shown to affect rehabilitation outcome of hip fractured patients. The degree of extracapsular fracture stability may also affect functional recovery. The aim of our study was to assess the relationship between extracapsular hip fracture stability and rehabilitation outcome in a post-acute setting.

Methods

A retrospective cohort study of 144 hip fractured patients was carried out in a post-acute geriatric rehabilitation center from 1/2014 to 6/2015. The main outcome measures were the Functional Independence Measure (FIM) instrument, motor FIM (mFIM), Montebello Rehabilitation Factor Score (MRFS) on the mFIM and length of stay (LOS). The associations between patients with stable vs. unstable and clinical, demographic and comorbidity variables, were assessed by the Mann-Whitney U and chi-square tests. A multiple linear regression model was used to estimate the association between fracture stability and LOS score after controlling for sociodemographic characteristics and chronic diseases.

Results

Rehabilitation outcomes (FIM and mFIM score changes, mFIM MRFS) were found independent of extracapsular hip fracture stability. Patients with an unstable fracture presented with a significantly longer LOS compared with a stable fracture (p = .008). Multiple linear regression analysis showed that fracture stability was significantly associated with LOS after adjustment for confounding demographic, clinical and functional variables (p = .009).

Conclusion

Patients with unstable extracapsular hip fractures may require a prolonged rehabilitation period in order to achieve the same functional gain as patients with stable fractures.

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