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Published in: International Orthopaedics 1/2021

01-01-2021 | Original Paper

The effect of immediate post-operative knee range of motion photographs on post-operative range of motion after total knee arthroplasty

An assessor-blinded randomized controlled clinical trial in sixty patients

Authors: Piya Pinsornsak, Supakit Kanitnate, Krit Boontanapibul

Published in: International Orthopaedics | Issue 1/2021

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Abstract

Purpose

We attempted to determine the effect of immediate post-operative knee range of motion (ROM) photographs on improving ROM after total knee arthroplasty (TKA).

Methods

Sixty patients, scheduled for unilateral primary TKA, were randomized into two groups. The photo group (n = 30) were immediately shown post-TKA knee ROM photographs as motivation for rehabilitation. The non-photo group (n = 30) received identical post-operative pain control and rehabilitation programs. Post-operative knee ROM and Knee Society Scores (KSS) at day three, six weeks, three months, six months, one year, and two years were evaluated. Outcome assessors were blinded to the groups during the study.

Results

Patients in the photo group had better knee flexion on day three (99.9° ± 15.3°, 95% confidence interval (CI) 94.1-105.7° vs. 92.3° ± 11.4°, 95% CI 87.9-96.8°; p = 0.038) and at six weeks (120.9° ± 13.4°, 95% CI 115.7-126.0° vs. 112.5° ± 13.6°, 95% CI 107.2-117.8°; p = 0.023); however, there were no differences in range of flexion beyond six weeks post-operatively. Knee extension did not significantly differ throughout. Clinical KSS was significantly higher in the photo group at six weeks (90.7° ± 6.2° vs. 86.6° ± 6.4°, p = 0.017). Functional KSS showed no differences between groups during follow-up.

Conclusion

Showing knee ROM photographs seemed to result in significant improvement of knee flexion and clinical KSS in the first 6 weeks post-TKA and may be recommended as part of post-TKA rehabilitation.
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Metadata
Title
The effect of immediate post-operative knee range of motion photographs on post-operative range of motion after total knee arthroplasty
An assessor-blinded randomized controlled clinical trial in sixty patients
Authors
Piya Pinsornsak
Supakit Kanitnate
Krit Boontanapibul
Publication date
01-01-2021
Publisher
Springer Berlin Heidelberg
Published in
International Orthopaedics / Issue 1/2021
Print ISSN: 0341-2695
Electronic ISSN: 1432-5195
DOI
https://doi.org/10.1007/s00264-020-04877-3

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