Single-leg assessment of postural stability and knee functional outcome two years after anterior cruciate ligament reconstruction - 02/09/09
, S. Zouita a, C. Dziri b, F.Z. Ben Salah c
Corresponding author.
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Abstract |
Objective |
To analyse postural stability and the single-leg hop for distance in subjects 2 years after anterior cruciate ligament reconstruction (ACLR), in comparison with an age- and activity-matched control group.
Design and setting |
Subjects reported to a sports medicine or athletic training research laboratory for testing.
Subjects |
Twenty-six subjects having undergone ACLR and 26 age- and activity-matched controls were selected to participate in this study. An arthroscopically-assisted, central, one-third bone-patellar tendon procedure was used to repair the ACLs.
Measurements |
One-leg stance postural stability was measured with the NeuroCom Balance Master® platform system. We recorded the single-leg hop for distance as an objective measure of function.
Results |
We found a significant difference (p<0.05) between the ACLR and control subjects in terms of the one-leg stance sway velocity (knee fully extended) on the operated side.
Conclusions |
After ACLR (mean time postoperatively: 24±1 months), single-leg hop for distance score was normal, when compared with the contralateral limb. Our results indicate that 2 years after surgery, single-limb postural stability in the ACLR group differed significantly from that in the control group. The persistence of poor stability control may be correlated to an impairment in proprioception.
Il testo completo di questo articolo è disponibile in PDF.Résumé |
Objectif |
Évaluer l’équilibre postural et le saut en longueur monopodal chez des footballeurs à recul moyen de deux ans de la reconstruction du LCA.
Population |
Vingt-six sportifs victimes de la reconstruction LCA et 26 sujets indemnes de toutes antécédents pathologiques ont participé à cette étude. La technique chirurgicale est de type Kenneth Jones.
Protocole |
L’équilibre postural en appui monopodal est réalisé sur Balance Master Neurocom® avec deux variantes : genou tenu et genou en flexion à 20°. Le test monopodal en longueur « one-leg hop » est choisi pour la mesure de la performance fonctionnelle.
Résultats |
Une différence statistiquement significative est obtenue en faveur du membre opéré, lors de l’équilibre postural monopodal genou en extension (p<0,05).
Conclusions |
À recul moyen de 24 mois de la reconstruction du LCA, nos footballeurs ont une symétrie fonctionnelle entre les deux membres. En revanche, il y a la persistance d’un déficit postural lors de l’évaluation monopodale sur plate-forme. Ce résultat comparable à la littérature semble être corrélé à la perte de la sensibilité proprioceptive en conséquence à la chirurgie du LCA.
Il testo completo di questo articolo è disponibile in PDF.Keywords : Anterior cruciate ligament reconstruction, Postural stability, Single-leg hop
Mots clés : Reconstruction LCA, Stabilité posturale, Saut monopodal
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Vol 52 - N° 6
P. 475-484 - Luglio 2009 Ritorno al numero
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