Can subsequent medical treatment break the causal chain in Utah malpractice cases? Zendler v. University of Utah Health Care Explained

The Utah Court of Appeals in Zendler v. University of Utah Health Care addressed when subsequent medical treatment can constitute a superseding cause that breaks the causal chain in medical malpractice litigation. This case provides important guidance for practitioners defending complex medical malpractice cases involving multiple healthcare providers.

Background and Facts

John Zendler underwent knee replacement surgery at the University of Utah Hospital in June 2015. Despite being warned of infection risks, including potential amputation, Zendler proceeded with surgery even though he had developed lymphedema in his non-operative leg. After surgery, Zendler developed an infection that was treated with antibiotics prescribed by the Utah surgeon for six months. However, a Wyoming doctor intervened after three months, stopped the antibiotics, performed additional surgery, and injected steroids into Zendler’s knee joint. Zendler subsequently developed a second infection that ultimately required amputation above the knee.

Key Legal Issues

The primary issues were whether the Wyoming doctor’s treatment constituted a superseding cause that broke the causal chain between the Utah doctor’s alleged negligence and Zendler’s amputation, and whether Utah’s informed consent statute required disclosure of patient-specific risk factors beyond general surgical risks.

Court’s Analysis and Holding

The court affirmed summary judgment for the Utah providers on both claims. Regarding causation, the court found that the Wyoming doctor’s actions constituted independent events that were not reasonably foreseeable and completely broke the connection between the Utah doctor’s alleged fault and the damages. The Wyoming doctor’s premature cessation of antibiotics, performance of elective surgery on a recently infected knee, and injection of immunosuppressant steroids were each separate efficient intervening causes. On the informed consent claim, the court ruled that Utah’s statute does not require healthcare providers to inform patients of their specific increased risks beyond the substantial and significant risks of the procedure generally.

Practice Implications

This decision reinforces that superseding cause remains a viable defense in medical malpractice cases when subsequent treatment involves unforeseeable medical decisions. Defense counsel should focus on establishing that intervening treatment decisions were independent, unforeseeable, and completely severed the causal connection. The ruling also confirms that Utah’s informed consent statute has narrower disclosure requirements than common law, requiring only disclosure of substantial and significant risks rather than patient-specific risk calculations.