A Manhattan man brought his arthritic dog to a veterinarian over a limp and the doggy doctor pushed costly and unnecessary tests and procedures that paralyzed the pooch — eventually leading to his having to be put down, a new lawsuit charges.

Harold Lehr brought his 14-year-old rescue dog, Oscar, to Long Island Veterinary Specialists last fall because the canine had been limping and, the suit alleges, the vet gave him two risky MRIs that paralyzed Oscar — after the dog was put under anesthesia for hours and the techs forced his body into positions that damaged his spine.

The procedure left Oscar incontinent and in “agony” and the allegedly poor care that followed — including not taking Oscar out of his cage for regular walks and not cleaning him properly — left him with bed sores and fecal and urine burns, the court papers claim.

One technician at the facility told Lehr, “she has seen this [paralysis] happen before and it is because of how they twist and position the dog for the MRI that causes problems. She said she has seen it with older arthritic dogs the most,” the court papers say.

Then the vet — who originally said the MRI would be used to check for a slipped disc or cancer — tried to cover it up by saying the paralysis was temporary and would wear off in a few days and the dog’s incontinence was due to the medications he was taking, “when in fact it was from spinal injury,” the court documents allege.

Vets at the facility convinced Lehr not to move his dog to another animal hospital, promising physical therapy and acupuncture, according to the suit.

But Lehr was never allowed to watch the physical therapy sessions and was told by a nurse the dog didn’t actually receive at least two of the rehab treatments. Lehr also wasn’t permitted to see where Oscar was being housed at the facility, the court papers claim.

Finally on Nov. 4, after a week in LIVS, Lehr moved Oscar to a Manhattan facility where vets said the pup’s spinal injury was “due to improper handling, positioning or impact during and after the MRI,” the court documents state.

The new facility also said it wouldn’t have allowed the MRI in the first place “as it was totally inappropriate for a mild limp and way too risky, especially since they already knew arthritis was causing the mild limp,” the suit reads.

A lawyer for LIVS, Alexander Bateman Jr., said, “Nobody at LIVS recommends or renders treatment unless it is medically necessary and fully explained to pet owners.”

“We are certain that others who allegedly reviewed the care of the animal in question, are either lacking in sufficient education and experience, or were provided incomplete and inaccurate information,” Bateman added. “Either way, their attempt to opine in this instance is reckless and irresponsible, and takes advantage of pet owners at a vulnerable time.”

Lehr says he incurred over $27,000 in vet and medical bills including for the Oct. 29 MRIs, round-the-clock at-home care for the dog for over a week and Oscar’s euthanization on Nov. 17.

“As a direct result of LIVS’s office culture” of “pushing unnecessary, inappropriate and lucrative services…designed primarily to maximize LIVS’s profits; Oscar suffered needlessly and was crippled and had to be untimely euthanized,” the lawsuit alleges.

Lehr’s lawyer, Luis Trujillo, said this is a “consumer protection matter,” adding, “I don’t feel there is enough oversight in the veterinary community.”