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Published in: Journal of Orthopaedics and Traumatology 1/2019

Open Access 01-12-2019 | Osteoarthritis of the Hip | Original article

Changes of and interrelationships between performance-based function and gait and patient-reported function 1 year after total hip arthroplasty

Authors: Josefine E. Naili, Margareta Hedström, Eva W. Broström

Published in: Journal of Orthopaedics and Traumatology | Issue 1/2019

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Abstract

Background

The aim of this prospective study is to evaluate the degree of improvement in, and interrelationships between, performance-based function, gait, and patient-reported function 1 year after total hip arthroplasty (THA) in patients with primary hip osteoarthritis (OA).

Materials and methods

Thirty-four patients with hip OA, with a mean age of 67 years (standard deviation, SD 9 years), and 25 age- and gender-matched healthy controls performed three performance-based functional tests, instrumented three-dimensional gait analysis, and completed the Hip disability and Osteoarthritis Outcome Score prior to and 1 year after THA. Effect sizes with 95 % confidence intervals were calculated as measures of the magnitude of improvement in performance after surgery.

Results

Performance-based function displayed large improvements 1 year after THA. Overall gait patterns, quantified using a kinematic and a kinetic gait index, respectively, revealed moderate improvements in kinematics of the operated limb and kinetics of the contralateral limb. Patient-reported function displayed the largest improvement after surgery.

Conclusions

The findings of this study suggest that objectively measured improvements in performance-based function and gait are not in line with patient-reported functional improvements, highlighting the importance of using both subjective and objective methods for evaluating function following THA.

Level of evidence

III.
Literature
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Metadata
Title
Changes of and interrelationships between performance-based function and gait and patient-reported function 1 year after total hip arthroplasty
Authors
Josefine E. Naili
Margareta Hedström
Eva W. Broström
Publication date
01-12-2019
Publisher
Springer International Publishing
Published in
Journal of Orthopaedics and Traumatology / Issue 1/2019
Print ISSN: 1590-9921
Electronic ISSN: 1590-9999
DOI
https://doi.org/10.1186/s10195-019-0521-7

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