EQUUS - - Eq Medical Front -

A new study ex­am­in­ing mag­netic res­o­nance imag­ing (MRI) find­ings and post­treat­ment per­for­mance in cut­ting horses with prox­i­mal sus­pen­sory lig­a­ment dis­ease sug­gests that many re­cover and re­turn to work.

Re­searchers from Colorado State Univer­sity re­viewed the records of 32 cut­ting horses who un­der­went MRI of their prox­i­mal metacar­pus (can­non re­gion) at An­i­mal Imag­ing, a ded­i­cated vet­eri­nary imag­ing hos­pi­tal in Irv­ing, Texas, be­tween 2009 and 2012. A com­mon cause of lame­ness in cut­ting horses, prox­i­mal sus­pen­sory lig­a­ment pain of­ten re­sults from bone and/or lig­a­ment in­jury at the up­per por­tion of the can­non bone, where the sus­pen­sory lig­a­ment at­taches.

The ab­nor­mal find­ings

most of­ten seen in the re­sult­ing MRI im­ages were bone re­mod­el­ing at the at­tach­ment point of the sus­pen­sory lig­a­ment, fol­lowed by fiber in­jury in the lig­a­ment it­self and bruis­ing on the bone. Of the 30 horses avail­able to fol­lowup two years later, 22 had re­turned to com­pe­ti­tion.

The re­searchers de­ter­mined that the sever­ity of in­jury at the time of di­ag­no­sis did not af­fect the chances for full re­cov­ery. How­ever, they note that the de­tailed in­for­ma­tion pro­vided by MRI imag­ing al­lows clin­i­cians to se­lect treat­ments tar­get­ing each as­pect of the dis­ease process: “MRI pro­vides the most com­pre­hen­sive di­ag­nos­tic imag­ing eval­u­a­tion of le­sions specif­i­cally af­fect­ing cut­ting horses.”

Ref­er­ence: “Mag­netic res­o­nance imag­ing find­ings of the prox­i­mal metacar­pus in Quar­ter Horses used for cut­ting: Ret­ro­spec­tive anal­y­sis of 32 horses 20092012,” Equine Vet­eri­nary Jour­nal, Au­gust 2017

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