Total Hip Arthroplasty: Minimal Clinically Important Difference and Patient Acceptable Symptom State for the Forgotten Joint Score 12.

Umile Giuseppe Longo,Giulia Santamaria,Maria Grazia De Marinis,Ilaria Piergentili,Anna Marchetti,Anna Indiveri,Sergio De Salvatore,Calogero Di Naro,Vincenzo Denaro

doi:10.3390/ijerph18052267

Abstract

The Forgotten Joint Score-12 (FJS-12) is a valid patient-reported outcome measures (PROMs) used to assess prosthesis awareness during daily activities after total hip arthroplasty (THA). The minimum clinically important difference (MCID) can be defined as the smallest change or difference that is evaluated as beneficial and could change the patient’s clinical management. The patient acceptable symptom state (PASS) is considered the minimum PROMs cut-off value that corresponds to a patient’s satisfactory state of health. Despite the validity and reliability of the FJS-12 having been already demonstrated, the MCID and the PASS of this score have not previously been defined. Patients undergoing THA from January 2019 to October 2019 were assessed pre-operatively and six months post-surgery using the FJS-12, the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and the Oxford Hip Score (OHS). Pre-operative and follow-up questionnaires were completed by 50 patients. Both distribution-based approaches and anchor approaches were used to estimate MCID. The aim of this paper was to assess the MCID and PASS values of FJS-12 after total hip replacement. The FJS-12 MCID from baseline to 6 months post-operative follow-up was 17.5. The PASS calculated ranged from 69.8 to 91.7.

Highlights

patient-reported outcome measures (PROMs) are self-reported measures, designed with the aim of collecting information related to constructs that are reported by the patients themselves, without third party interpretations
In this study were included 50 patients, 23 women and 27 men affected by hip osteoarthritis (Grade III-IV of Kellgren-Lawrence Classification)
Difference smaller than the calculated standard error of measurement (SEM) is probably due to a measurement error rather than a real observed change; an minimum clinically important difference (MCID) value smaller than the SEM likely results from error

Summary

Introduction

Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. There are several types of measurement tools used in orthopedics, including subjective (tests and scores) and objective (laboratory tests) parameters. Patient-reported outcome measures (PROMs) are commonly used in orthopedic studies to assess patient symptoms and health after surgical treatment [1]. PROMs are self-reported measures, designed with the aim of collecting information related to constructs that are reported by the patients themselves, without third party interpretations. PROMs include perception of pain, functionality, prosthesis awareness, satisfaction and health-related quality of life [2,3]. PROMs can be generic, including health-related information, or specific, reporting data on specific diagnosis or procedures (joint replacement, surgery or a specific diagnosis) [4]

Objectives

Methods

Results

Discussion

Conclusion