The relationship between peak knee extension at heel-strike of walking and the location of thickest femoral cartilage in ACL reconstructed and healthy contralateral knees
| Autor: | Julien Favre, Thomas P. Andriacchi, Sean F. Scanlan |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Adult
Male musculoskeletal diseases Biomedical Engineering Biophysics Context (language use) Walking Osteoarthritis Knee extension Models Biological Humans Medicine Knee Orthopedics and Sports Medicine Femur Range of Motion Articular Heel strike business.industry Cartilage Rehabilitation Anatomy musculoskeletal system Femoral cartilage medicine.disease Biomechanical Phenomena Knee cartilage medicine.anatomical_structure Gait analysis Heel business human activities |
| Zdroj: | Journal of Biomechanics. 46:849-854 |
| ISSN: | 0021-9290 |
| DOI: | 10.1016/j.jbiomech.2012.12.026 |
| Popis: | Reports that knee cartilage health is sensitive to kinematic changes, combined with reports of extension loss following ACL reconstruction, underscores the importance of restoring ambulatory knee extension in the context of preventing premature osteoarthritis. The purpose of this study was to test the relationship between individual variations in peak knee extension at heel-strike of walking and the anterior-posterior location of thickest cartilage in the medial and lateral femoral condyles of healthy contralateral and ACL reconstructed knees. In vivo gait analysis and knee MR images were collected from 29 subjects approximately 2 years after unilateral ACL reconstruction. Knee extension was measured at heel-strike of walking and 3-D femoral cartilage thickness models were reconstructed from MR images. The ACL reconstructed knees had significantly reduced knee extension (-1.5±4.2°) relative to the contralateral knees (-4.6±3.4°) at heel-strike of walking but did not have side-to-side differences in the anterior-posterior location or magnitude of thickest medial and lateral femoral cartilage. The anterior-posterior location of the thickest medial femoral cartilage was correlated with knee extension at heel-strike in both the healthy contralateral (R(2)=0.356, p |
| Databáze: | OpenAIRE |
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