There is no hard data about this, but a reasonable estimate would be in the hundreds of thousands. There are millions of horses in the United States, and a surgery constitutes everything from arthroscopic bone spur removal to castration.
In the United States, there are no horses slaughtered for food legally as federal inspection for horse slaughter has been defunded for several years.
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According to this report, there are about 500,000 spine surgeries performed in the US each year. It doesn't say how many are for spinal stenosis though. http://www.burtonreport.com/InfSpine/TheFailedBackSurgerySyndrome.htm
More than 1.5 million cataract surgeries are performed in the United States each year.
he performed 22000 surgeries
More than 40 million surgeries were performed in the United States in 2000
Outpatient surgery continues to mushroom: in 1984, roughly 400,000 outpatient surgeries were performed.
In the USA alone over 53 million patients undergo surgical procedures each year.
Surgery for an animal can be performed at the veterinarian clinics. The surgeries are performed by the authorized veterinary surgeons. There are many different types of animal surgeries.
By 2000, the number had risen to 8.3 million.
In 2012, more than 538,000 surgeries were performed in Canada. This is more than in any other year on record.
The work of Charles Drew saves many everyday, but he performed many surgeries himself.
In the USA it is approximately 33300 per month on average.