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Monday, November 22, 2010

How common are bunions?

Bunions appear to prevail and especially in those who dare wear high heeled fashion shoes, but how prevalent are they? A new meta study published in the recent Journal of Foot and Ankle reveals all. Bunions are of course a bursitis (inflamed sac) which appears over the bony prominence referred to as Hallux Valgus (lateral deviation of the great toe) caused by joint subluxation (partial dislocation). The first metatarsal phalangeal joint is a di-plane which has a range of motion in two planes that is it can move up and down and side to side. When the main pivotal joint of the foot rotates on its access it partially dislocates the joint causing a lateral drift of the great toes. The most obvious deformity is a protruding eminence corresponding to the first metatarsal head. The pathological process results in the forefoot breadth increasing often causing painful symptoms surrounding the bunion area or in more severe cases wear and tear (osteo-arthrosis) within the join itself. According to the researchers despite the frequent mention in a diverse body of literature, it still remains difficult to be a precise on the prevalence of HV within the population. From their meta analysis it appears HV is more likely to occur in women and with increasing age. Women were 2.5 times more likely to suffer from paritial dislocation of the great toe than men

Read more: Nix S, Smith M and Vicenzino B 2010 Prevalence of hallux valgus in the general population: a systematic review and meta-analysis Journal of Foot and Ankle Research 2010, 3:21doi:10.1186/1757-1146-3-21

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