Patient-Reported Outcomes 1 Year After Proximal Interphalangeal Joint Arthroplasty for Osteoarthritis

Bo J.W. Notermans*, Mark J.W. van der Oest, Ruud W. Selles, Luitzen H.L. de Boer, the Hand-Wrist Study Group, Brigitte E.P.A. van der Heijden

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Purpose: Implant survival, range of motion, and complications of proximal interphalangeal joint arthroplasty have been reported often, but patient-reported outcomes are less frequently described. This study evaluated patients' experiences during the first year after proximal interphalangeal joint arthroplasty, measured with the Michigan Hand Outcomes Questionnaire (MHQ). The primary focus was the reduction of patient-reported pain after proximal interphalangeal joint implant placement and the percentage of patients who considered this reduction clinically relevant, indicated by the minimal clinically important difference (MCID). Methods: Data were collected prospectively; 98 patients completed the MHQ before and at 3 and 12 months after surgery. Our primary outcome was the change in the pain score. An increase of 24 points or more was considered a clinically important difference. Secondary outcomes included changes in MHQ total and subscale scores and MCIDs, range of motion (ROM), patient satisfaction with the outcome of the surgery, and complications. Results: The pain score improved significantly, from 42 (95% confidence interval, 38–46) at baseline to 65 (95% confidence interval, 60–69) at 12 months after surgery. The MCID was reached by 50% (n = 49) of patients. The ROM did not improve, reoperations occurred in 13% (n = 13) of patients, and swan neck deformities only occurred among surface replacement implants. Conclusions: Although most patients undergoing arthroplasty for osteoarthritis experienced significantly less pain after surgery, the pain reduction was considered clinically relevant in only 50% (n = 49) of patients. Patients with high MHQ pain scores before surgery are at risk for postoperative pain reduction that will not be clinically relevant. Likewise, the other subscales of the MHQ improved after surgery, but reached a clinically relevant improvement in only 46% (n = 45) to 63% (n = 62) of patients. This knowledge can be used during preoperative consultation to improve shared decision making. Type of study/level of evidence: Prognostic IV.

Original languageEnglish
Pages (from-to)603-610
Number of pages8
JournalJournal of Hand Surgery
Volume47
Issue number7
Early online date26 May 2022
DOIs
Publication statusPublished - 1 Jul 2022

Bibliographical note

Funding Information:
The authors thank all patients who participated and allowed their data to be anonymously used for the present study. The collaborators of the Hand-Wrist Study Group are: R.A.M. Blomme, B.J.R. Sluijter, D.J.J.C. van der Avoort, A. Kroeze, J. Smit, J. Debeij, E.T. Walbeehm, G.M. van Couwelaar, G.M. Vermeulen, J.P. de Schipper, J.F.M. Temming, J.H. van Uchelen, K.P. de Haas, K. Harmsen, O.T. Zöphel, R. Feitz, J.S. Souer, R. Koch, S.E.R. Hovius, T.M. Moojen, X. Smit, R. van Huis, P.Y. Pennehouat, K. Schoneveld, Y.E. van Kooij, R.M. Wouters, J.J. Veltkamp, A. Fink, W.A. de Ridder, H.P. Slijper, R. Poelstra, J.S. Teunissen, L. Hoogendam, and M. ter Stege.

Publisher Copyright:
© 2022

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