ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2020
In vivo kinematics and ligamentous function of the knee during weight-bearing flexion: an investigation on mid-range flexion of the knee.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 26 citations in OpenAlex.
- The effect of weight-bearing status on kinematics and cruciate ligament force in normal knees.Scientific reports · 2025Article
- High posterior tibial slope increases anterior cruciate ligament elongation in unicompartmental knee arthroplasty during early-flexion of lunge.BMC musculoskeletal disorders · 2025Article
- Load-bearing optimization for customized exoskeleton design based on kinematic gait reconstruction.Medical & biological engineering & computing · 2025Article
- Does contemporary bicruciate retaining total knee arthroplasty restore the native knee kinematics? A descriptive literature review.Archives of orthopaedic and trauma surgery · 2022Review
- PCL insufficient patients with increased translational and rotational passive knee joint laxity have no increased range of anterior-posterior and rotational tibiofemoral motion during level walking.Scientific reports · 2022Article
- UTE-T2* versus conventional T2* mapping to assess posterior cruciate ligament ultrastructure and integrity-anQuantitative imaging in medicine and surgery · 2022Article
- Biomechanical consequences of anterior root detachment of the lateral meniscus and its reinsertion.Scientific reports · 2022Article
- Predicting the Effect of Localized ACL Damage on Neighbor Ligament Mechanics via Finite Element Modeling.Bioengineering (Basel, Switzerland) · 2022Article
- Multi-planar instability, laxity and reduced knee flexion during the support phase of walking are determinants of return to sports.Frontiers in bioengineering and biotechnology · 2022Article
- Cruciate ligament force of knees following mobile-bearing unicompartmental knee arthroplasty is larger than the preoperative value.Scientific reports · 2021Article
- Ligament deformation patterns of the craniocervical junction during head axial rotation tracked by biplane fluoroscopes.Clinical biomechanics (Bristol, Avon) · 2021Article
- In vivo length change of ligaments of normal knees during dynamic high flexion.BMC musculoskeletal disorders · 2020Article
- Passive Laxity in Patients With Subjective Instability Following a Cruciate-Retaining Total Knee Arthroplasty: A Pilot Study.JB & JS open accessArticle
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Authors and funding
6 authors at 4 institutions in 2 countries.
Funding
Abstract
purposeTo investigate the in vivo femoral condyle motion and synergistic function of the ACL/PCL along the weight-bearing knee flexion.
methodsTwenty-two healthy human knees were imaged using a combined MRI and dual fluoroscopic imaging technique during a single-legged lunge (0°-120°). The medial and lateral femoral condyle translation and rotation (measured using geometric center axis-GCA), and the length changes of the ACL/PCL were analyzed at: low (0°-30°), mid-range (30°-90°) and high (90°-120°) flexion of the knee.
resultsAt low flexion (0°-30°), the strains of the ACL and the posterior-medial bundle of the PCL decreased. The medial condyle showed anterior translation and lateral condyle posterior translation, accompanied with a sharp increase in external GCA rotation (internal tibial rotation). As the knee continued flexion in mid-range (30°-90°), both ACL and PCL were slack (with negative strain values). The medial condyle moved anteriorly before 60° of flexion and then posteriorly, accompanied with a slow increase of GCA rotation. As the knee flexed in high flexion (90°-120°), only the PCL had increasingly strains. Both medial and lateral condyles moved posteriorly with a rather constant GCA rotation.
conclusionsThe ACL and PCL were shown to play a reciprocal and synergistic role during knee flexion. Mid-range reciprocal anterior-posterior femoral translation or laxity corresponds to minimal constraints of the ACL and PCL, and may represent a natural motion character of normal knees. The data could be used as a valuable reference when managing the mid-range "instability" and enhancing high flexion capability of the knee after TKAs. LEVEL OF EVIDENCE: Level IV.
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