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Abstract
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.
The authors would like to thank the orthopedic teams at the different centers in Sweden as well as the register coordinators at the Center of Registries, Västra Götaland for the high quality and integrity of the data being collected in the Swedish Hip Arthroplasty register.
Acta thanks Willem Schreurs and Claus Varnum for help with peer review of this study.
Additional information
Notes on contributors
Maziar Mohaddes
MM, HM, JK, and OR conceived and planned the study. DO and EN performed statistical analyses. MM drafted the manuscript with subsequent substantial inputs from all co-authors. All authors interpreted the findings.
Emma NaucléR
MM, HM, JK, and OR conceived and planned the study. DO and EN performed statistical analyses. MM drafted the manuscript with subsequent substantial inputs from all co-authors. All authors interpreted the findings.
Johan Kärrholm
MM, HM, JK, and OR conceived and planned the study. DO and EN performed statistical analyses. MM drafted the manuscript with subsequent substantial inputs from all co-authors. All authors interpreted the findings.
Henrik Malchau
MM, HM, JK, and OR conceived and planned the study. DO and EN performed statistical analyses. MM drafted the manuscript with subsequent substantial inputs from all co-authors. All authors interpreted the findings.
Daniel Odin
MM, HM, JK, and OR conceived and planned the study. DO and EN performed statistical analyses. MM drafted the manuscript with subsequent substantial inputs from all co-authors. All authors interpreted the findings.
Ola Rolfson
MM, HM, JK, and OR conceived and planned the study. DO and EN performed statistical analyses. MM drafted the manuscript with subsequent substantial inputs from all co-authors. All authors interpreted the findings.