Purpose
To determine, in patients undergoing joint preservation procedures, whether the Forgotten
Joint Score (FJS) compares favorably with legacy measures.
Methods
Medical databases (including PubMed/MEDLINE and Embase databases) were queried for
publications with the terms “Forgotten Joint Score” and “hip,” “knee,” “arthroscopy,”
or “ACL.” Fourteen studies met the inclusion criteria. Methodologic quality was assessed
through the Consensus-based Standards for the Selection of Health Measurement Instruments
(COSMIN) checklist, and psychometric data were evaluated for ceiling or floor effects,
convergent validity, internal consistency, reliability, responsiveness, measurement
invariance, and measurement error by 2 fellowship-trained orthopaedic surgeons (B.D.K.
and W.T.H.).
Results
Data were collected from 14 studies using the FJS after joint-preserving procedures
in 911 patients (959 joints). Four studies reported strong internal consistency with
an average Cronbach α of 0.92. Two studies reported responsiveness with an effect
size ranging from 0.6 to 1.16. One study reported reproducibility with an interclass
correlation coefficient of 0.9 (95% confidence interval, 0.8-0.9). One study reported
measurement error with an minimum detectable change (MDC)individual of 32% and MDCgroup of 4.5%. Studies reported moderate to very strong convergent validity across legacy
measures for hip and knee preservation surgery. Ceiling effects were favorable compared
with many legacy scores for hip and knee preservation. Three studies reported the
minimal clinically important difference whereas 1 study reported the patient acceptable
symptomatic state for the FJS.
Conclusions
The FJS is a methodologically sound outcome measure used to evaluate patient outcomes
after hip and knee preservation surgery with overall low ceiling effects compared
with legacy measures.
Level of Evidence
Level IV, systematic review of Level III and IV studies.
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Article info
Publication history
Published online: February 18, 2023
Accepted:
January 31,
2023
Received:
July 29,
2022
Publication stage
In Press Journal Pre-ProofFootnotes
The authors report the following potential conflicts of interest or sources of funding: B.D.K. is on the editorial board of Arthroscopy. B.G.D. is a board or committee member of AANA Learning Center Committee, American Hip Foundation, American Orthopedic Foundation, St. Alexius Medical Center, and University of Illinois College of Medicine; owns stock or stock options in American Hip Institute, Munster Specialty Surgical Center, North Shore Surgical Suites, and SCD#3; is a paid consultant for Amplitude, Arthrex, MAKO Surgical, Medacta, Pacira Pharmaceuticals, and Stryker; receives intellectual property royalties from Amplitude, Arthrex, DJO Global, MAKO Surgical, Orthomerica, and Stryker; receives other financial or material support from Arthrex, Breg, Medwest, and St. Alexius Medical Center; is a paid presenter or speaker for Arthrex and Pacira Pharmaceuticals; receives research support from Arthrex, ATI Physical Therapy, Kaufman Foundation, MAKO Surgical, Medacta, Medtronic, Ossur, Pacira Pharmaceuticals, Prime Surgical, Synthes, Trice Medical, and Zimmer; and is on the editorial or governing board of Arthroscopy and Journal of Hip Preservation Surgery. Full ICMJE author disclosure forms are available for this article online, as supplementary material.
Identification
Copyright
© 2023 by the Arthroscopy Association of North America
