The Occurrence of Ipsilateral or Contralateral Foot Disorders and Hand Dominance

Abstract

Background To our knowledge, hand dominance and side of foot disorders has not been described in the literature. The purpose of the current study was to evaluate whether hand dominance was associated with ipsilateral foot disorders among community-dwelling older men and women Methods Data were from the Framingham Foot Study (n=2,089, examined 2002–2008). Hand preference for writing was used to classify hand dominance. Foot disorders and side of disorders were based on a validated foot examination. Generalized linear models with GEE was used to estimate odds ratios (OR) and 95% confidence intervals (CI), accounting for intra-person variability. Results Left-handed people were less likely to have foot pain or any foot disorders ipsilateral, but were more likely to have hallux valgus ipsilateral to the left hand. Among right-handed people, the following statistically significant increased odds of having an ipsilateral foot disorder versus contralateral foot disorder were seen: 30% for Morton’s Neuroma, 18% for hammer toes, 21% for lesser toe deformity, and a 2-fold increased odds of any foot disorder; there was a 17% decreased odds for Tailor’s Bunion, and an 11% decreased odds for pes cavus. Conclusion For the 2089 study participants, certain forefoot disorders were shown to be ipsilateral while other foot disorders were contralateral to the dominant hand. It is possible that the side of the dominant hand was a proxy for biomechanics of the dominant foot that may explain some of the associations with ipsilateral forefoot disorders.

PREVALENCE OF HALLUX ABDUCTO VALGUS AMONG VARIOUS GROUPS IN ANAMBRA STATE OF NIGERIA; Predominio de hallux abducto valgus entre varios grupos en el estado de anambra de Nigeria

“…Unfortunately, the scope of our study did not permit such examination. To our knowledge, only one study reported association of handedness with HAV (Nguyen et al, 2013). They found that left handed people were more likely to have HAV on the left foot.…”

Systemic connective tissue features in women with fibromuscular dysplasia

“…Historical control data, when available, was abstracted from the medical literature. [14][15][16][17][18][19][20][21] Given the low number of male patients recruited and the potential for sex-related differences in physical examination features, only data for the female cohort are presented. A p-value <0.05 was considered statistically significant.…”