SUR­PRIS­ING FIND­INGS ABOUT SUP­PORT­ING LIMB LAMINI­TIS

EQUUS - - EQ Med­i­cal Front -

A re­cent Bri­tish study sug­gests that the causes of sup­port­ing limb lamini­tis are poorly un­der­stood and in need of fur­ther in­ves­ti­ga­tion.

Trig­gered by a va­ri­ety of sys­temic or me­chan­i­cal fac­tors, lamini­tis is an ex­tremely painful, and po­ten­tially dev­as­tat­ing, in­flam­ma­tion of the sen­si­tive lam­i­nae of the hoof.

As the name sug­gests, sup­port­ing limb lamini­tis is thought to re­sult from the over­load­ing of a healthy limb when the in­jured one op­po­site it is un­able to bear weight.

How­ever, a case re­view of 65,327 horses ad­mit­ted to Ross­dales Equine Hospi­tal in New­mar­ket be­tween 2005 and 2013 sug­gests that the com­pli­ca­tion was not re­stricted to horses who had in­juries pre­vent­ing them from bear­ing weight on a limb, and it de­vel­oped within a wide time frame: from four to 100 days af­ter the ini­tial in­jury. In ad­di­tion, the re­searchers found that sup­port­ing limb lamini­tis is rare, with an overall preva­lence of only .02 per­cent.

These find­ings, the re­searchers say, will make fur­ther epi­demi­o­log­i­cal stud­ies look­ing for risk fac­tors “a lo­gis­ti­cal chal­lenge.” Ref­er­ence: “Preva­lence of sup­port­ing limb lamini­tis in a UK equine prac­tice and re­fer­ral hospi­tal set­ting be­tween 2005 and 2013: Im­pli­ca­tions for fu­ture epi­demi­o­log­i­cal stud­ies,” Ve­teri­nary Record, Septem­ber 2014

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