Do Horses with Osteochondral Lesions Always Need Surgery?
Osteochondral lesions that show up on young horses' radiographs might appear worrisome, but the veterinarian behind a recent research review concluded that surgery isn’t always necessary, or even recommended. And in many cases the worry isn’t necessary either.
“I see far too many situations of positive radiographs meaning a flunked prepurchase exam in a sound horse,” said C. Wayne McIlwraith, BVSc, PhD, DSc, FRCVS, Dipl. ACVS, Dipl. ACVSMR, director of the Orthopaedic Research Center at Colorado State University. “Osteochondrosis defects are not the biggest thing we have to worry about in young horses.”
Often, osteochondral lesions will resolve on their own or with conservative treatment such as reduced work load, he said. But some osteochondral lesions do require surgical intervention to prevent compromised soundness and performance.
McIlwraith recently investigated the outcomes of surgical and nonsurgical care of various osteochondral lesions in a research review. He found that surgery can be beneficial in certain cases, depending on the location and kind of lesion:
But all in all, surgery is unnecessary in many cases where radiographic changes are found on routine radiographs of yearlings, McIlwraith said. However, if fragments are present and the yearling is destined for sale, owners generally opt for surgery, he added. The critical factor is whether there are signs of disease and whether the owner wants to sell the horse.
“In most instances where radiographic lesions are seen on survey radiographs (without clinical signs and if no sale is planned), conservative management is recommended,” he stated.
And in fact, he said, regular X ray screening on a horse with no clinical signs might be an unnecessary source of worry, he added.
“Of course, radiographic screening of yearlings for sale is common,” McIlwraith told The Horse. “I don’t disagree with radiographic screening but we also need to pay attention to the clinical signs.”
If X ray surveys are carried out, multiple views of the joint should be taken as described in repository guidelines, he said. Single views of the joint would be too limited and not provide an accurate enough evaluation of the horse’s osteochondral status, he explained.
The study, "Surgical versus conservative management of osteochondrosis," was published in July 2013 in The Veterinary Journal.
Disclaimer: Seek the advice of a qualified veterinarian before proceeding with any diagnosis, treatment, or therapy.
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