ReviewOrthopaedic journal of sports medicine2021
Quadriceps Strength After Anterior Cruciate Ligament Reconstruction Compared With Uninjured Matched Controls: A Systematic Review and Meta-analysis.
Review in Orthopaedic journal of sports medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.
What it found
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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
27 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Effectiveness of strength-oriented rehabilitation interventions as a non-pharmacologic rehabilitation strategy for knee function after anterior cruciate ligament reconstruction: a three-level meta-analysis.Frontiers in medicine · 2026Pooled it
- Lower-Limb Joint Work Redistribution and Altered Movement Control During Double-Leg Squatting in Patients 6 Months After Anterior Cruciate Ligament Reconstruction.Bioengineering (Basel, Switzerland) · 2026Article
- Sex-Specific Analysis of Quadriceps and Hamstring Strength Following Anterior Cruciate Ligament Reconstruction With or Without Meniscal Repair.Journal of functional morphology and kinesiology · 2026Article
- Inferior Outcomes after Subsequent Revision or Contralateral ACL Reconstruction: A Cross-Sectional Study.Orthopaedic journal of sports medicine · 2026Article
- The Effectiveness of Blood Flow Restriction Training on Rehabilitation After Anterior Cruciate Ligament Reconstruction: A Systematic Review and Meta-Analysis.Journal of clinical medicine · 2026Review
- Changes in Muscle Volume Asymmetries Among Lower Extremity Muscles From Baseline Through 12 Months After Anterior Cruciate Ligament Reconstruction With Quadriceps Tendon Autograft.Orthopaedic journal of sports medicine · 2026Article
- Corticospinal tract structure and descending motor output following anterior cruciate ligament reconstruction: an exploratory multimodal neuroimaging assessment.Frontiers in human neuroscience · 2026Article
- Isokinetic evaluation of knee muscles and correlation of maximum torque of the extensors of the operated knee with thigh circumference in soccer players 2 years after ACL reconstruction: A cross-sectional study.Hong Kong physiotherapy journal : official publication of the Hong Kong Physiotherapy Association Limited = Wu li chih liao · 2025Article
- Optimizing return to sports after anterior cruciate ligament reconstruction: A multi-factorial umbrella review on rehabilitation strategies.Journal of clinical orthopaedics and trauma · 2025Review
- Normative values of ankle strength and its importance for rehabilitation and return to activity: A cross-sectional study.World journal of orthopedics · 2025Article
- Dynamic change of direction, isometric strength, and psychological readiness in final phase ACLR athletes: an integrated approach.BMC musculoskeletal disorders · 2025Article
- Why Should Return to Sport Be Delayed by up to Two Years After ACL Reconstruction? A Narrative Review of the Biological, Surgical and Rehabilitation Evidence.Journal of clinical medicine · 2025Review
- Dynamic postural stability and asymmetry in thigh circumference and single-leg hop test following anterior cruciate ligament reconstruction.Journal of experimental orthopaedics · 2025Article
- Association of Knee Pain Frequency and Severity with Quadriceps Strength but Not Rate of Decline Over Four Years.ACR open rheumatology · 2025Article
- Article
- Autograft Choice and Jumping Performance After Anterior Cruciate Ligament Reconstruction: A Comparative Study on Professional Athletes.Orthopaedic journal of sports medicine · 2024Article
- Knee Extensor Torque Steadiness and Quadriceps Activation Variability in Collegiate Athletes 4, 6, and 12 Months After ACL Reconstruction.Orthopaedic journal of sports medicine · 2024Article
- Strength of the Uninvolved Limb Following Return to Activity After ACL Injury: Implications for Symmetry as a Marker of Sufficient Strength.International journal of sports physical therapy · 2024Article
- Quadriceps and Hamstrings Activation Peaks Earlier as Athletes Repeatedly Hop, but There are Differences Depending on ACL Reconstruction Technique.International journal of sports physical therapy · 2024Article
- Weaker Quadriceps Muscle Strength With a Quadriceps Tendon Graft Compared With a Patellar or Hamstring Tendon Graft at 7 Months After Anterior Cruciate Ligament Reconstruction.The American journal of sports medicine · 2024Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
backgroundThe limb symmetry index may overestimate the recovery of quadriceps muscle strength after anterior cruciate ligament reconstruction. Comparison of individuals who have had anterior cruciate ligament reconstruction with age-, sex-, and activity-matched individuals might be more appropriate to guide rehabilitation interventions. PURPOSE: To compare the quadriceps strength between the injured limb of people with anterior cruciate ligament reconstruction and the limb of an age-, sex-, and activity-matched control group. STUDY
designSystematic review; Level of evidence, 3.
methodsMEDLINE, CINAHL, EMBASE, SCOPUS, and SPORTDiscus were searched between inception and April 2019. Studies were included if they reported the peak quadriceps strength for persons with anterior cruciate ligament reconstruction and age-, sex-, and activity-matched control groups measured using isometric or isokinetic dynamometry. Risk of bias was assessed, and meta-analyses and metaregression (for effect of time since surgery) were performed.
resultsA total of 2759 studies were identified and 21 were included for analyses. Quadriceps strength was lower in the limbs with anterior cruciate ligament reconstruction compared with the limb from matched controls within 6 months of anterior cruciate ligament reconstruction (standardized mean difference [SMD], -1.42; 95% CI, -1.62 to -1.23), 6 to 18 months after anterior cruciate ligament reconstruction (SMD, -0.92; 95% CI, -1.18 to -0.66), and >18 to 48 months after anterior cruciate ligament reconstruction (SMD, -0.38; 95% CI, -0.79 to 0.03). Results of the metaregression were significant, with the difference between anterior cruciate ligament reconstruction and matched controls decreasing with time since surgery (
conclusionIn people with anterior cruciate ligament reconstruction, the injured limb had lower quadriceps strength compared with the limb of age-, sex-, and activity-matched controls up to 4 years after surgery. Clinicians should consider comparison with matched cohorts for return to sports decision making.
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Registered trials
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