Dual-task performance after primary and revision total knee arthroplasty: Comparison of mobility and dynamic balance

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Patients who have undergone revision total knee arthroplasty exhibit worse functional mobility and dynamic balance compared to those with primary total knee arthroplasty, and cognitive load significantly deteriorates motor performance in both groups. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

Elif Aygün Polat; Yunus Emre Ozbilen; Yusuf Polat

doi:10.31459/turkjkin.1938084

August 29, 2026Turkish Journal of KinesiologyOpen Access

Dual-task performance after primary and revision total knee arthroplasty: Comparison of mobility and dynamic balance

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Key Points

To compare functional mobility, dynamic balance, and dual-task cost under single-task and dual-task conditions between patients who underwent primary total knee arthroplasty and revision total knee arthroplasty.
Cross-sectional comparative study evaluating 80 patients aged 55 years or older who had undergone primary TKA (n=40) or revision TKA (n=40) at least 12 months previously.
Assessed functional mobility and dynamic balance via the Timed Up and Go (TUG) test and Four Square Step Test (FSST) under single-task and dual-task (counting backward aloud by twos) conditions.
Revision TKA patients demonstrated significantly worse unadjusted single-task TUG completion times compared to primary TKA patients (13.37±3.93 s vs 11.64±2.13 s, p=0.017).
Dynamic balance under dual-task FSST conditions was significantly worse in the revision TKA cohort compared to the primary TKA cohort (17.57±5.55 s vs 14.86±3.94 s, p=0.014).
Following adjustment for age and sex, simultaneous cognitive dual-tasking significantly deteriorated performance across both TUG and FSST assessments (both p < 0.05).

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Implication

Cross-sectional study demonstrates impaired mobility and dynamic balance in revision versus primary knee arthroplasty patients, indicating greater functional decline under cognitive load.

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Polat et al. (2026) studied this question.

synapsesocial.com/papers/6a93f14b6c1a8fb52e79e227 https://doi.org/10.31459/turkjkin.1938084

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Dual-task performance after primary and revision total knee arthroplasty: Comparison of mobility and dynamic balance

Key Points

No abstract yet

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Implication

Discussion

Cite This Study

Dual-task performance after primary and revision total knee arthroplasty: Comparison of mobility and dynamic balance

Key Points

No abstract yet

Ask about this paper

Implication

Discussion

Cite This Study

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