Summary
The object of this study was to find out whether an arthrotomy of the knee would damage joint proprioception. Twenty patients who underwent arthrotomy, and 20 patients after arthroscopy, were tested on a modified ergometer and the electromyographic action of their quadriceps and hamstrings recorded. The quadriceps action started later and had a shorter duration (20 ms) after arthrotomy. The differences are statistically significant in intra-individual comparison both for vastus lateralis and medialis, in comparison with the normal group for only the vastus medialis. There were no significant differences in muscle control after arthroscopy. These results are in favour of preferring arthroscopy to arthrotomy whenever possible.
Résumé
Le but de ce travail est de déterminer si une arthrotomie du genou entraîne des troubles de la proprioception. Vingt patients ayant subi une arthrotomie antéroexterne ou antéro-interne, ainsi qu'un groupe de même importance ayant subi une arthroscopie ont été soumis à une épreuve de charge sur une bicyclette ergométrique modifiée; l'activité électromyographique de leur quadriceps et de leur musculature ischio-crurale a été enregistrée. On a pu observer, chez les arthrotomisés, un début d'activité du quadriceps significativement plus tardif et une durée d'activité raccourcie de 20 ms, tant par comparaison avec le côté opposé que par comparaison avec les sujets sains. Les patients traités par arthroscopie n'ont pas montré d'altérations de la commande musculaire. On peut s'attendre à ce que les modifications mises en évidence chez les patients arthrotomisés soient nettement plus marquées en cas d'incisions plus étendues. Ces résultats constituent, à notre avis, un argument de plus pour accorder, dans la mesure du possible, la préférence aux procédés arthroscopiques.
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Hess, T., Gleitz, M., Hopf, T. et al. Changes in muscular activity after knee arthrotomy and arthroscopy. International Orthopaedics 19, 94–97 (1995). https://doi.org/10.1007/BF00179968
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DOI: https://doi.org/10.1007/BF00179968