ArticleOrthopaedic journal of sports medicine2023
Evaluation of Muscle Strength and Graft Laxity With Early Open Kinetic Chain Exercise After ACL Reconstruction: A Cohort Study.
Article in Orthopaedic journal of sports medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 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.
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Who cites it
18 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.
- Effect of open vs. closed kinetic chain exercises in ACL rehabilitation on knee joint pain, laxity, extensor muscles strength, and function: a systematic review with meta-analysis.Frontiers in sports and active living · 2024Pooled it
- Effect of Knee Angle Specific (60°-90°) Combine versus Isolated Kinetic Chain on Post ACL Recovery Outcomes: A Randomized Control Trial.Journal of multidisciplinary healthcare · 2025Trial
- Postoperative Quadriceps Symmetry, Knee Laxity, and Single-Leg Hop Performance in Association with 24-Month Ipsilateral Graft Retear After Anterior Cruciate Ligament Reconstruction: A Cohort Study.Life (Basel, Switzerland) · 2026Article
- Understanding Anterior Cruciate Ligament Adaptation: Structural, Mechanical, and Healing Considerations.Sports medicine (Auckland, N.Z.) · 2026Review
- Psychological and Physical Readiness Profiles for Return to Sport in Patients After Anterior Cruciate Ligament Reconstruction: An Analysis of 822 Patients.Orthopaedic journal of sports medicine · 2026Article
- Article
- Limb Strength and Power Asymmetries in Professional Team Sport Athletes at Return-to-Sport Testing Following ACL Reconstruction.Medicina (Kaunas, Lithuania) · 2026Article
- Isokinetic Quadriceps Strength at Slower Speeds Following ACLR More Strongly Influences Hop Test Performance in Adolescent Athletes.International journal of sports physical therapy · 2026Article
- Influence of Graft Type on Muscle Contractile Dynamics After ACL Reconstruction: A 9-Month Tensiomyographic Follow-Up.Diagnostics (Basel, Switzerland) · 2025Article
- Early Postoperative Evaluation of Arthrogenic Muscle Inhibition, Anterior Knee Laxity, and Kinesiophobia After ACL Reconstruction: A Cross-Sectional Observational Study.Healthcare (Basel, Switzerland) · 2025Article
- Impact of Hamstring Graft on Hamstring Peak Torque and Maximum Effective Angle After Anterior Cruciate Ligament Reconstruction: An Exploratory and Preliminary Study.Bioengineering (Basel, Switzerland) · 2025Article
- Criteria-Based Decision Making for Introducing Open Kinetic Chain Exercise after-ACL Reconstruction: A Scoping Review.Sports medicine - open · 2025Review
- Neuromuscular Control Deficits After Anterior Cruciate Ligament Reconstruction: A Pilot Study Using Single-Leg Functional Tests and Electromyography.Journal of functional morphology and kinesiology · 2025Article
- Effect of closed-chain isometric plyometric training combined with palonosetron on postoperative knee function in patients after total knee arthroplasty.Frontiers in surgery · 2025Article
- Effects of Low-Load Blood Flow Restriction Training on Muscle Volume After Anterior Cruciate Ligament Reconstruction: A Systematic Review and Meta-analysis.Orthopaedic journal of sports medicine · 2024Review
- Return-to-Sport Testing in Young Athletes After Anterior Cruciate Ligament Reconstruction.HSS journal : the musculoskeletal journal of Hospital for Special Surgery · 2024Article
- Comparison of Functional Outcomes after Anterior Cruciate Ligament Reconstruction with Meniscal Repair for Unstable versus Stable Meniscal Tears.Diagnostics (Basel, Switzerland) · 2024Article
- Oh, My Quad: A Clinical Commentary And Evidence-Based Framework for the Rehabilitation of Quadriceps Size and Strength after Anterior Cruciate Ligament Reconstruction.International journal of sports physical therapy · 2024Article
Corrections and comments
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Open kinetic chain (OKC) exercise is an effective method to improve muscle function during rehabilitation after anterior cruciate ligament reconstruction (ACLR); however, there is controversy about its use in the early phase of rehabilitation. Purpose: To determine (1) whether the use of OKC and closed kinetic chain (CKC) exercises improves quadriceps and hamstring strength in the early phase of rehabilitation after ACLR and (2) whether the early use of OKC exercise affects graft laxity at 3 and 6 months postoperatively in patients with a hamstring tendon graft. Study Design: Cohort study; Level of evidence, 3. Methods: This study included an intervention group that underwent OKC + CKC exercises (n = 51) and a control group that underwent CKC exercise only (n = 52). In the intervention group, OKC exercise for the quadriceps and hamstring was started at 4 weeks after ACLR. At 3 and 6 months postoperatively, isokinetic testing was performed to calculate the limb symmetry index (LSI) and the peak torque to body weight ratio (PT/BW) for the quadriceps and hamstring. Anterior knee laxity was measured by an arthrometer. Results: At 3 and 6 months postoperatively, quadriceps strength was higher in the intervention group than in the control group for the LSI (3 months: 76.14% ± 0.22% vs 46.91% ± 0.21%, respectively; 6 months: 91.05% ± 0.18% vs 61.80% ± 0.26%, respectively; Conclusion: Early use of OKC exercise for both the quadriceps and the hamstring, in addition to conventional CKC exercise, resulted in better correction of quadriceps and hamstring strength deficits without increasing graft laxity.
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Registered trials
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