Badminton winner Inonothing, who was injured at the Alltech FEI World Equestrian Games, is expected to be back eventing by the end of next season.
Jenny Waaler's 14-year-old hit the jump going into the first water, the Salato Wildlife Centre. Rider Paul Tapner realised he did not feel right and pulled him up at fence 13. X-rays found a chip of bone had come off his stifle.
Inonothing flew back to Belgium from Cincinnati with the other British-based horses on Tuesday last week. He was then driven back to England and straight to Newmarket, where he had an operation to remove the chip.
"The operation was a success and the bone chip was removed," Paul told H&H. "They found some extra damage to his cartilage which may make his recovery a little longer, but he's well and will hopefully come home on Monday [18 October].
"He won't be at Badminton to defend his title, but plan A is that he will be at Burghley or Pau next year."