Whether credible medical evidence supported the jury's finding that Powers sustained a permanent knee disability.
Holding
Yes. The medical evidence was sufficient to support the jury's finding of permanent injury, so the trial court erred by changing that verdict answer.
Reasoning
Wisconsin requires competent expert testimony on permanency when the claimed future effects are subjective and not reliably assessable by a lay jury. Powers's recurring pain and swelling, standing alone, could not establish permanency. But the record contained objective findings: both physicians measured slight atrophy in the injured leg, and Dr. Verdone heard clicking when Powers flexed her knee.
Dr. Verdone testified that Powers had a torn semilunar cartilage and that damaged cartilage does not regenerate or heal. Dr. Ansfield independently assessed a five-percent knee disability approximately three years after the accident and stated that he did not believe the knee would change in the future. From that testimony, the jury could reasonably infer that the disability was permanent.
The insurers argued that the doctors' opinions were incompetent because the physicians examined Powers after suit began and partly relied on her subjective complaints. That objection went to admissibility, however, and the testimony entered the record without a timely objection. Once admitted, the jury could consider it, including Dr. Ansfield's testimony elicited on direct examination by defense counsel.
The Court also rejected the argument that the doctors failed to speak in terms of reasonable medical certainty. A medical opinion need not use ritual words such as 'reasonable probability' if it is expressed as the expert's professional conclusion. Statements such as 'I believe' and a definite diagnosis were adequate; only an opinion stated as a mere possibility would be insufficient.