ArticleJournal of orthopaedic research : official publication of the Orthopaedic Research Society2021
Gait mechanics are influenced by quadriceps strength, age, and sex after total knee arthroplasty.
Article in Journal of orthopaedic research : official publication of the Orthopaedic Research Society, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
14 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.
- The Time Course of Quadriceps Strength Recovery After Total Knee Arthroplasty Is Influenced by Body Mass Index, Sex, and Age of Patients: Systematic Review and Meta-Analysis.Frontiers in medicine · 2022Pooled it
- Gait Analysis as a Measure of Physical Performance in Older Adults with Bilateral Knee Osteoarthritis.Medicina (Kaunas, Lithuania) · 2025Trial
- Neuromuscular Characteristics Associated with Knee Instability in Osteoarthritis and After Total Knee Replacement: A Systematic Review and Meta-Analysis.Clinics and practice · 2026Review
- The global profile of individuals undergoing total knee replacement surgery through a PROGRESS-PLUS equity lens: A systematic review.The South African journal of physiotherapy · 2026Review
- Preoperative and Post-Rehabilitation Predictors of Gait Biomechanics Six Months After Total Knee Arthroplasty.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2025Article
- The combination of a medial pivot design with kinematic alignment principles in total knee arthroplasty can ensure a closer to normal knee kinematics than combining mechanical alignment and more traditional implant designs: An umbrella review.Journal of experimental orthopaedics · 2025Review
- Factors associated with stiff knee gait in patients with knee osteoarthritis.Journal of orthopaedics · 2025Article
- The Impact of Neuromuscular Stimulation on the Rehabilitation Outcomes of Patients Following Joint Replacement Surgery: A Systematic Review and Meta-Analysis.Iranian journal of public health · 2025Review
- Validity, reliability, and bias between instrumented pedals and loadsol insoles during stationary cycling.PloS one · 2024Article
- Sagittal plane knee kinematics can be measured during activities of daily living following total knee arthroplasty with two IMU.PloS one · 2024Article
- Current applications of gait analysis after total knee arthroplasty: A scoping review.Journal of clinical orthopaedics and trauma · 2022Article
- Effect of knee joint weight change on knee function recovery and gait after total knee arthroplasty.BMC musculoskeletal disorders · 2022Article
- Observational
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 5 institutions in 2 countries.
Funding
Abstract
Although most patients are satisfied with outcomes after total knee arthroplasty (TKA), many retain preoperative altered gait mechanics. Identifying patient characteristics associated with gait mechanics will improve rehabilitation strategies and enhance our understanding of movement disorders. Therefore, the purpose of this study was to identify which patient characteristics are related to gait mechanics in the surgical limb during walking post-TKA. Patient characteristics included age, body mass, sex, quadriceps strength, self-reported function, and knee pain. General linear regression was used to compare patient characteristics associated with gait mechanics, after controlling for gait speed, functional capacity and time from surgery. We tested 191 patients cross-sectionally at 6-24 months after primary, unilateral TKA. Quadriceps weakness in the surgical limb was associated with less peak vertical ground reaction force (PvGRF) (β = .245, p = .044), knee extension moment (β = .283, p = .049), and knee extension excursion (β = .298, p = .038). Older age (β = .168, p = .050) was associated with less PvGRF. Quadriceps strength in the nonsurgical limb (β = -.357, p = .021) was associated with greater knee extension excursion in the surgical limb. Females with TKA (β = -.276, p = .007) had less knee flexion excursion compared to males. Faster gait speed was also associated with greater PvGRF (β = .585, p < .001), knee extensor moment (β = .481, p < .001), and knee flexion excursion (β = .318, p < .001). Statement of Clinical Significance: This study showed quadriceps weakness, slower gait speed, older age and being female were related to altered gait mechanics post-TKA. These findings will help clinicians better educate patients and develop targeted interventions for improving care in patients post-TKA.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.