25premus147 10.3205/25premus147 urn:nbn:de:0183-25premus1474 Meeting Abstract van Zaanen van Zaanen Yvonne Y

Amsterdam UMC, University of Amsterdam, Department of Public and Occupational Health, Amsterdam, Netherlands

author Hoozemans Hoozemans Marco M

Vrije Universiteit Amsterdam, Department of Human Movement Sciences, Amsterdam, Netherlands

author Kievit Kievit Arthur A

Amsterdam UMC, University of Amsterdam, Department of Orthopaedic Surgery and Sports Medicine, Amsterdam, Netherlands

author Van Geenen Van Geenen Rutger R

Amphia Hospital, Breda, Netherlands

author Pahlplatz Pahlplatz Thijs T

Amsterdam UMC, University of Amsterdam, Department of Orthopaedic Surgery and Sports Medicine, Amsterdam, Netherlands

author Blankevoort Blankevoort Leendert L

Amsterdam UMC, University of Amsterdam, Department of Orthopaedic Surgery and Sports Medicine, Amsterdam, Netherlands

author Schafroth Schafroth Matthias M

Amsterdam UMC, University of Amsterdam, Department of Orthopaedic Surgery and Sports Medicine, Amsterdam, Netherlands

author Haverkamp Haverkamp Daniel D

Xpert Clinics Orthopedie Amsterdam Laarderhoogtweg, Amsterdam, Netherlands

author Vervest Vervest Ton T

Tergooi MC locatie Hilversum, Hilversum, Netherlands

author Das Das Henricus H

Anna Hospital, Geldrop, Netherlands

author Scholtes Scholtes Vanessa V

OLVG Location West, Amsterdam, Netherlands

author Kuijer Kuijer Paul P

Amsterdam UMC, University of Amsterdam, Department of Public and Occupational Health, Amsterdam, Netherlands

author German Medical Science GMS Publishing House

Düsseldorf

610 20250909 engl This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License. Dieser Artikel ist ein Open-Access-Artikel und steht unter den Lizenzbedingungen der Creative Commons Attribution 4.0 License (Namensnennung). M0625 147 12th International Scientific Conference on the Prevention of Work-Related Musculoskeletal Disorders PREMUS 2025 Poster PO 4 Tübingen 20250909 20250912 147 TextIntroduction: After total knee arthroplasty (TKA), a minority of working patients are dissatisfied and experience a late or no return to work (RTW). Patients who have a lot of difficulty with performing work-related knee-straining activities might have more difficulty with RTW. This study aimed to identify whether a pre-defined grouping based on self-reported ability to perform work-related knee-straining activities at three months post-TKA was associated with the ability to perform work-related knee-straining activities at six and 12 months and RTW at three, six, and 12 months post-TKA.Methods: A 12-month multicenter prospective cohort study was performed among working TKA patients intending to RTW. The work, osteoarthritis, or joint replacement questionnaire (WORQ) score (range 0 to 100) was used to assess patients’ ability to perform thirteen work-related knee-straining activities. Patients were grouped based on their WORQ-score at three months post-TKA into 1. Early (WORQ ≥ 71), 2. Intermediate (WORQ 51 to 70), and 3. Late (WORQ ≤ 50) recovery of work-related activities. Analyses included Spearman’s correlation tests, and Kaplan-Meier survival analyses.Results: The median age of the cohort (n = 182) was 59 years [IQR [interquartile range] 55 to 62], and 52% were women. The early- (n = 54) and intermediate-recovery groups (n = 68) clinically improved their ability to perform work-related knee-straining activities at three and 12 months, respectively, while the late-recovery group (n = 60) did not do so until 12 months (rs = 0.6, 0.27, and 0.25, respectively). The early-recovery group returned to work earlier (median 62 [IQR 41 to 90] days) compared to the intermediate- (75 [46 to 115] days) and late-recovery groups (84 [58 to 116] days) and resumed 100 percent of their working hours at six months versus 12 months in the intermediate- and late-recovery groups (rs = 0.37, 0.33, 0.1 at three, six, and 12 months, respectively).Discussion: At three months post-TKA, the WORQ can be used to distinguish early-, intermediate-, and late-recovery groups, which are associated with the ability to perform work-related knee-straining activities at six and 12 months post-TKA and RTW at three and six months. A suggestion for further research would be to determine whether late-recovery patients could be detected earlier than at three months postoperative, say at six weeks after surgery, bringing the opportunity to start interventions earlier. The finding that difficulty with work-related knee activities can persist for up to one year or longer after TKA in patients with intermediate and late recovery may increase awareness among patients, clinicians, and occupational health professionals that timely workplace accommodations and referrals to occupational health professionals for musculoskeletal disorders may be necessary.Conclusion: The WORQ score at three months after TKA can help clinicians, physical therapists and occupational health professionals monitor patients at higher risk for delayed return to work in a timely and effective manner. 0 0 0 0