ArticleOrthopaedic journal of sports medicine2026
Association of Preoperative Asymmetry in Vertical Ground-Reaction Force With Knee Extensor Symmetry 1 Year After Anterior Cruciate Ligament Reconstruction.
Article in Orthopaedic journal of sports medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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
0 citing papers in PubMed.
No citing paper in PubMed yet.
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.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Preoperative and postoperative asymmetries in knee kinematics and kinetics, particularly in vertical ground-reaction force (vGRF), have been linked to long-term functional outcomes after anterior cruciate ligament (ACL) reconstruction. Gait asymmetry may indicate altered neuromuscular control and compensatory cocontraction strategies, which can compromise joint integrity and delay recovery. Purpose: To determine whether preoperative vGRF asymmetry could predict postoperative knee extensor strength symmetry and neuromuscular recovery 1 year after ACL reconstruction. Study Design: Cohort study; Level of evidence, 2. Methods: A total of 55 patients undergoing ACL reconstruction were prospectively evaluated before surgery and at 1 year postoperatively. Assessments included vGRF, gait speed, surface electromyography, isokinetic knee extensor/flexor strength, and the Knee injury and Osteoarthritis Outcome Score (KOOS) questionnaire. Based on preoperative vGRF data, participants were categorized into lesser-loading and greater-loading groups. Three-dimensional motion capture and synchronized force plates were used to analyze gait and cocontraction indices. Generalized estimating equations were applied to evaluate group × time effects, with statistical significance set at Results: Both groups demonstrated pain reduction and improved KOOS scores postoperatively, accompanied by partial restoration of vGRF symmetry. The greater-loading group (n = 28) exhibited significant improvement in knee extensor strength symmetry (from 66% to 87%; Conclusion: Our study showed that preoperative vGRF asymmetry is a clinically feasible indicator of neuromuscular recovery potential after ACL reconstruction. Patients with reduced injured-limb loading showed persistent cocontraction and weaker quadriceps strength, underscoring the value of early gait assessment for targeted rehabilitation.
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.