Article

Postural sway is defined as the movement of a body's center of mass within the
base of support to maintain postural equilibrium. Deficits in postural sway are
present after ACL injury; however, current evidence linking it to future injury
risk is unclear. The purpose of this study was to determine if postural sway
deficits persist after ACL reconstruction (ACLR). The hypothesis tested was that
after ACLR, patients who return to sport (RTS) would demonstrate differences in
postural sway compared to control (CTRL) subjects. Fifty-six subjects with
unilateral ACLR released to RTS, and 42 uninjured CTRL subjects participated.
Dynamic postural sway was assessed and 3-way (2x2x2) ANOVA was used to analyze
the variables. A sidexgroupxsex (p=0.044) interaction in postural sway was
observed. A sidexgroup analysis also revealed an interaction (p=0.04) however, no
effect of sex was observed (p=0.23). Analysis within the ACLR cohort showed less
(p=0.001) postural sway on the involved side (1.82+/-0.84 degrees ) versus the
uninvolved side (2.07+/-0.96 degrees ). No side-to-side differences (p=0.73) were
observed in the CTRL group. The involved limb of subjects after ACLR demonstrated
the least postural sway. In conclusion, these findings indicate that dynamic
postural sway may be significantly altered in a population of athletes after ACLR
and RTS compared to CTRL subjects. Further investigation is needed to determine
if deficits in postural sway can be used as an effective criterion to assist in
the decision to safely RTS after ACLR.
CI - Copyright (c) 2012 Elsevier B.V. All rights reserved.

Langue : ANGLAIS