Abstract
Introduction
Digital healthcare systems based on augmented reality (AR) show promise for postoperative rehabilitation. We compared the effectiveness of AR-based rehabilitation and conventional rehabilitation after total knee arthroplasty (TKA).
Materials and methods
We randomly allocated 56 participants to digital healthcare rehabilitation group (DR group) and conventional rehabilitation group (CR group). Participants in the CR group performed brochure-based home exercises for 12 weeks, whereas those in the DR group performed AR-based home exercises that showed each motion on a monitor and provided real-time feedback. The primary outcome was change in 4-m gait speed. The secondary outcomes were the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score, health-related quality of life [assessed by the EuroQoL 5-Dimension 5-Level (EQ5D5L) questionnaire], pain [measured using a numeric rating scale (NRS)], Berg Balance Scale (BBS), range of motion (ROM), and muscle strength. Outcomes were measured at baseline (T0) and 3 (T1), 12 (T2), and 24 (T3) weeks after randomization.
Results
There was no significant difference in baseline characteristics of participants between two groups, except age and body mass index. No group difference was observed in 4-m gait speed (0.37 ± 0.19 and 0.42 ± 0.28 for the DR and CR groups, respectively; p = 0.438). The generalized estimating equation model revealed no significant group by time interaction regarding for 4-m gait speed, WOMAC, EQ5D5L, NRS, BBS, ROM, and muscle strength score. All outcomes were significantly improved in both groups (p < 0.001).
Conclusion
The use of a digital healthcare system based on AR improved the functional outcomes, pain, and quality of life of patients after TKA. AR-based rehabilitation may be useful treatment as an alternative to conventional rehabilitation.
Trial registration
ClinicalTrials.gov (identifier: NCT04513353). Registered on August 9, 2020. http://clinicaltrials.gov/ct2/show/NCT04513353.
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Data availability
Data are available from the authors upon reasonable request.
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Acknowledgements
The authors would like to thank Yoon Jeong Baek and Bo Ram Kim for assistance with data collection and randomization in this trial.
Funding
This study was supported by the Korea Health Technology R&D Project through the Korea Health Industry Development Institute and funded by the Ministry of Health Welfare, Republic of Korea (grant no.: HR19C0781).
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Ethics Committee Approval was granted by Institutional Review Board of Seoul National University at Bundang Hospital (SNUBH) (IRB no.: B-2005–612-001) and Samsung Medical Center (SMC) (IRB no.: SMC-2019–05-021).
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Shim, G.Y., Kim, E.H., Lee, S.J. et al. Postoperative rehabilitation using a digital healthcare system in patients with total knee arthroplasty: a randomized controlled trial. Arch Orthop Trauma Surg 143, 6361–6370 (2023). https://doi.org/10.1007/s00402-023-04894-y
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DOI: https://doi.org/10.1007/s00402-023-04894-y