Evaluation of the Validity and Reliability of a Persian Version of the Forgotten Joint Score in Patients Undergoing Total Hip Arthroplasty

Document Type : RESEARCH PAPER


1 Department of Orthopedics, Imam Hossein Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran

2 Department of Orthopedic, School of Medicine, Beasat hospital, AJA University of Medical Sciences, Tehran, Iran

3 Physical Medicine and Rehabilitation, Isfahan University of Medical Sciences, Isfahan, Iran

4 4 Medical student, Shahid Beheshti University of Medical Sciences, Tehran, Iran

5 Shahid Beheshti University of Medical Sciences, Tehran, Iran


Objectives: The increasing number of total hip arthroplasties (THA) has led to increased patient
demands and expectations, making it crucial to assess patients' ability to "forget" their implants in daily
life. This study aimed to determine the reliability and validity of a Persian version of the Forgotten Joint
Score (P-FJS) in THA patients.
Methods: The questionnaire was translated bidirectionally with the permission of the questionnaire designer. Data
were collected from 2018 to 2020 and included 142 patients who had undergone THA by the same surgeon at least
one year ago. Participants completed the FJS questionnaire twice within a one-week interval, and the validity,
reliability, and feasibility of the questionnaires were assessed using statistical tests on the HHS and OHS forms
completed by all participants.
Results: In 142 patients (52.1% male) with a mean age of 65 ± 0.5 years who answered the questionnaires, P-FJS
correlated strongly with OHS and HHS. The internal consistency (α = 0.91) and reproducibility of the questionnaire
were excellent. None of the floor and ceiling effects were detected.
Conclusion: The P-FJS questionnaire in the THA is considered a legitimate, repeatable, and self-administered
survey that can be compared to its English-language counterpart. In addition, it is noteworthy that this version does
not show any floor or ceiling effects.
 Level of evidence: III


Main Subjects

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