Effectiveness of total knee arthroplasty rehabilitation programmes: A systematic review and meta-analysis.
Waleed Alrawashdeh, Jörg Eschweiler, Filippo Migliorini and 3 others
PMID 33846757WHAT IT FOUND
Adding specific methods like electrical stimulation or balance exercises to standard knee replacement rehab did not consistently improve range of motion or pain.
While some scores for function and walking speed improved, the results were inconsistent across studies. There is no single superior rehabilitation protocol.
Key findings
01There was no significant difference between modified and standard rehabilitation programmes for active knee extension, active knee flexion, or pain scores.
02Modified programmes showed statistically significant improvements in overall WOMAC scores and Timed Up and Go test times compared to standard care.
03The authors concluded that no specific rehabilitation method or timing strategy consistently improves clinical outcomes after total knee arthroplasty.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTs
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What it does not show
There was a high level of heterogeneity between the included studies, meaning the interventions and populations were quite different, which makes pooling the results difficult and reduces certainty. Subgroup analyses to explore why results varied (e.g., by timing or specific add-on) could not be performed due to a lack of data. The significant improvement in Timed Up and Go scores was noted by the authors to be potentially skewed, requiring cautious interpretation. Blinding of participants and therapists was generally not possible due to the nature of physical rehabilitation, which can introduce performance bias. Follow-up periods varied widely, from 4 days to 24 months, making it hard to determine the long-term sustainability of any observed benefits.
Declared interests
The authors have no conflicts of interest to declare.
The easy way to misread this
Do not interpret the significant improvements in WOMAC and Timed Up and Go scores as proof that a specific add-on technique is superior. The high heterogeneity and the authors' own warning about skewed TUG data mean these findings are not robust enough to change standard practice. The core finding is that no single modification consistently outperforms comprehensive standard care.