Tibiofemoral Joint Contact Force Profiles of Pediatric Patients After Anterior Cruciate Ligament Reconstruction.
Background: Incidence rates of pediatric anterior cruciate ligament (ACL) injuries and ACL reconstruction (ACLR) are increasing. In adult patients with ACLR, limb-level loading profiles are less dynamic compared with uninjured controls (ie, lesser peaks and minimal offloading during midstance) early...
| Publicado en: | American Journal of Sports Medicine Vol. 53; no. 13; pp. 3124 - 3135 |
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| Autores principales: | , , , , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Sage Publications Inc.
Nov2025
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=189024544&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 189024544 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 03635465 ASM jtl: American Journal of Sports Medicine issn: 03635465 maglogo: Y pubinfo: dt: Nov2025 vid: 53 iid: 13 pid: 344 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 189024544 188487409 189024544 189024544 10.1177/03635465251372465 189024544 ppf: 3124 ppct: 11 formats: tig: atl: Tibiofemoral Joint Contact Force Profiles of Pediatric Patients After Anterior Cruciate Ligament Reconstruction. aug: au: Bjornsen, Elizabeth Blackburn, J. Troy Franz, Jason R. Horton, W. Zachary Padua, Darin A. Shultz, Sandra J. Tayne, Samantha Pietrosimone, Brian G. affil: Human Movement Science Curriculum, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA sug: subj: Tibiofemoral Joint Physiopathology Anterior Cruciate Ligament Injuries Surgery Anterior Cruciate Ligament Injuries Surgery Anterior Cruciate Ligament Reconstruction Biomechanics Evaluation Treatment Outcomes Human Child Adolescence Surgical Patients Male Female Matched Case Control Clinical Assessment Tools Gait Analysis Ground Reaction Force Biological Markers Muscle Contraction Kinematics Algorithms Functional Assessment Meniscal Injuries Epidemiology Multiple Trauma Knee Injuries, Articular Cartilage Anterior Cruciate Ligament Sports Medicine Cross Sectional Studies Post Hoc Analysis Electromyography Unpaired T-Tests Mann-Whitney U Test Comparative Studies Exploratory Research Qualitative Studies North Carolina Walking Speed Sex Factors Multicenter Studies Self Report Motion Capture Flexion Regression Correlation Coefficient Confidence Intervals Descriptive Statistics Data Analysis Software Child: 6-12 years Adolescent: 13-18 years Male Female ab: Background: Incidence rates of pediatric anterior cruciate ligament (ACL) injuries and ACL reconstruction (ACLR) are increasing. In adult patients with ACLR, limb-level loading profiles are less dynamic compared with uninjured controls (ie, lesser peaks and minimal offloading during midstance) early post-ACLR, and less dynamic profiles are associated with deleterious knee tissue changes. However, joint-level loading magnitudes during gait in the pediatric ACLR population are unknown. Purpose/Hypothesis: The purpose of this study was to compare medial and lateral tibiofemoral joint contact force profiles between pediatric patients with ACLR and pediatric matched controls. It was hypothesized that pediatric patients with ACLR would demonstrate less dynamic medial and lateral joint contact force profiles compared with matched uninjured pediatric controls. Study Design: Cross-sectional study; Level of evidence, 2. Methods: Pediatric patients 6 to 24 months post-ACLR (n = 25) and matched pediatric controls (n = 25; Tanner stage category, sex, Tegner activity score ±3) underwent a gait biomechanical assessment at a single time point, where ground-reaction forces and marker trajectories were collected. The concurrent optimization of muscle activation and kinematics algorithm was utilized to estimate medial and lateral compartment tibiofemoral joint contact forces in the ACLR limb and pediatric matched control limb. A functional linear model was utilized to determine differences in joint contact force profiles throughout stance phase (0%-100%). Results: Pediatric patients with ACLR demonstrated a high occurrence of concomitant injuries (80% meniscal pathology; 13% chondral injuries) and walked with greater medial tibiofemoral joint contact forces in midstance (42%-63% of the stance phase; 339-N maximal difference) and greater lateral joint contact forces in the late stance compared with pediatric controls (69%-80%; 288 N). Conclusion: Pediatric patients with ACLR may demonstrate a less dynamic tibiofemoral joint contact force loading profile in the medial compartment, as evidenced by greater loading during midstance, compared with matched pediatric controls. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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