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Implant survival and patient-reported outcome following total hip arthroplasty in patients 30 years or younger: a matched cohort study of 1,008 patients in the Swedish Hip Arthroplasty Register

Journal article
Authors Maziar Mohaddes
E. Naucler
Johan Kärrholm
Henrik Malchau
D. Odin
Ola Rolfson
Published in Acta Orthopaedica
Volume 90
Issue 3
Pages 249-252
ISSN 1745-3674
Publication year 2019
Published at Institute of Clinical Sciences, Department of Orthopaedics
Pages 249-252
Language en
Keywords replacement, less, Orthopedics, andler hp, 1981, journal of bone and joint surgery-american volume, v63, p1426
Subject categories Orthopedics


Background and purpose The outcome of total hip arthroplasty (THA) in younger patients is suggested to be inferior compared with the general THA population. There is a lack of studies with long-term follow up for very young patients. We report on implant survival and patient-reported outcome in patients aged 30 years or younger.Patients and methods Data on THAs performed in Sweden between the years 2000 and 2016 were included. There were 504 patients 30 years or younger with complete demographic and surgical data (study group). A matched comparison group older than 30 years was identified. Implant survival was analyzed using the Kaplan-Meier method. Patient-reported outcome was analyzed in a subgroup of patients.Results The 10-year and 15-year implant survivorship for the study group was 90% and 78%, respectively. The corresponding figures for the patients older than 30 years were 94% and 89%. The median preoperative EQ-5D index was lower in the study group; the improvement in EQ-5D index was similar between the study and the comparison groups. The preoperative EQ-VAS was lower and the improvement in EQ-VAS at 1 year was larger in the study group.Interpretation The promising 10-year implant survival and 1-year improvement in patient-reported outcome suggests that THA is a feasible option in the patients 30 years or younger.

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