Hallux valgus et gros orteil.

TITLE:          The Role of the Great Toe in Balance Performance

                 (Article, English)

AUTHOR:         Chou, SW; Cheng, HYK; Chen, JH; Ju, YY; Lin, YC; Wong,                 MKA

 ABSTRACT:       The obective of this study was to evaluate great, toe  function in maintaining static and dynamic balance. Correlation among  great toe length, body height, and balance performance parameters were  also investigated. Thirty females (aged 22.1 +/- 1.9 years) were tested  in two great toe conditions: unconstrained and constrained. Balance

 testing was done in the following order: (1) static balance, single-leg  stance with right or left foot, eyes open or closed; (2) static balance,  stance with both feet, eyes open or closed; (3) dynamic balance,  left/right or forward/backward, rhythmic weight shifting; and (4) dynamic  balance, target reaching test, eight targets within 90%, limit of  stability. Significant differences were found in sway velocity between  the two toe conditions with eyes open or closed in single-leg stance (p < 0.05). No difference was found between the two conditions while standing  with both feet. For rhythmic weight shifting, significant differences in  sway velocity were found in toe conditions and in weight-shifting  directions (p < 0.05). As to target reaching, significance was only noted  in directional control scores. Great toe length was correlated with  subject's height (r = 0.553, p < 0.05). Our results indicate that  constraining the great toe deteriorated the subjects' single-leg stance  performance and worsened the directional control ability during  forward/backward weight shifting. The importance of the great toe in  balance may be taken into account in toe amputation or transfer in the  future.

(C) 2008 Orthopaedic Research Society. Published by Wiley

Periodicals, Inc. J Orthop Res 27:549-554, 2009

AUTHOR ADDRESS: SW Chou, Chang Gung Mem Hosp, Dept Phys Med & Rehabil, 5

Fu

                 Hsing St, Tao Yuan 333, Taiwan

Conclusion:

Lorsque l'on ampute volontairement  un gros orteil afin de remplacer la perte du pouce de la main,

il faudrait compenser cette amputation soit par une prothèse ou par une semelle .