Surgical Errors and Medical Malpractice: When You Have a Case

Not Every Complication Is Malpractice

NEJM data shows retained surgical items happen in roughly 1 in 5,000 to 1 in 18,000 surgeries — rare, but not as rare as you'd hope given the checklists. And even with modern protocols, the Joint Commission still tracks hundreds of wrong-site surgeries as sentinel events every year.

But here's the catch — not every complication is malpractice. A known risk that materializes despite proper technique isn't negligence, even if the outcome is awful.

Malpractice requires a deviation from the standard of care that causes injury. Infection after abdominal surgery?

Usually a known risk. Sponge left inside? Almost always malpractice.

The standard of care is what a reasonably competent surgeon in the same specialty would have done under similar circumstances. It accounts for the patient's condition, the complexity of the procedure, and the clinical setting.

A complication that occurs despite proper care is considered a known risk of the procedure — not malpractice. But a complication that occurs because the surgeon made an error in judgment, lacked proper training, failed to follow established protocols, or was impaired during the operation may be malpractice.

Determining whether you have a malpractice case requires a review of your medical records by a qualified expert witness in the same surgical specialty. The expert will evaluate whether the surgeon's actions met the standard of care and whether the complication was a known risk or the result of an error. If you suspect surgical malpractice, our med mal calculator can help you estimate the potential value of your claim.

Common Types of Surgical Errors

Wrong-site surgery — operating on the wrong body part, the wrong side, or the wrong patient — is perhaps the most egregious type of surgical error. The Joint Commission, which accredits U.S. hospitals, tracks these events and reports hundreds of wrong-site surgeries annually despite the implementation of the Universal Protocol (a surgical safety checklist requiring pre-operative verification, site marking, and time-outs). Wrong-site surgery is almost always considered malpractice because it should be entirely preventable through proper protocols.

Retained surgical instruments are another well-known category. Sponges, needles, clamps, and other instruments left inside a patient's body after surgery can cause serious complications including infection, pain, bowel obstruction, and organ perforation.

Studies published in the New England Journal of Medicine estimate that retained surgical items occur in approximately 1 in 5,000 to 1 in 18,000 surgeries. Modern operating room protocols include instrument counts before and after surgery, but human error still leads to retained items.

Other common surgical errors include damage to surrounding organs or tissues (such as nicking the ureter during gynecological surgery or damaging a nerve during spinal surgery), anesthesia errors (administering too much or too little anesthesia, failing to monitor the patient properly, or intubation injuries), and inadequate post-operative care (failing to monitor for complications, discharging the patient too early, or prescribing incorrect medications). Each type of error requires specific expertise to evaluate and prove.

Informed Consent and Surgical Malpractice

Before any surgery, the surgeon is required to obtain your informed consent — meaning they must explain the procedure, its risks and benefits, alternative treatments, and the risks of doing nothing. If the surgeon fails to disclose a material risk, and that risk materializes and causes injury, you may have a malpractice claim based on lack of informed consent, even if the surgery itself was performed competently.

The standard for informed consent varies by state. Most states follow either the "physician standard" (what a reasonable physician would disclose) or the "patient standard" (what a reasonable patient would want to know). The patient standard, which is followed by a growing number of states, is more protective of patients because it focuses on the information a patient would consider important in making their decision, rather than what doctors customarily disclose.

Informed consent cases can be challenging to prove because they often come down to a credibility dispute between the patient ("they never told me about that risk") and the surgeon ("I always discuss that risk with patients"). The signed consent form is important evidence but is not conclusive — a court will look beyond the form to determine whether the risks were actually explained in a meaningful way. If you believe you were not properly informed about the risks of your surgery, discuss the issue with an attorney who handles medical malpractice claims.

Hospital Liability for Surgical Errors

When a surgical error occurs, the hospital where the surgery was performed may be liable in addition to the surgeon. Hospital liability can arise under several theories: respondeat superior (the hospital is responsible for the negligence of its employees), corporate negligence (the hospital failed to maintain adequate staffing, equipment, or safety protocols), and negligent credentialing (the hospital allowed an unqualified or impaired surgeon to operate).

The respondeat superior theory applies when the surgeon is an employee of the hospital. If the surgeon is an independent contractor (as many surgeons are), the hospital may still be liable under the "ostensible agency" doctrine if the patient reasonably believed the surgeon was acting as the hospital's agent. This distinction can be important because hospitals typically carry larger insurance policies than individual surgeons, providing a deeper pocket for recovery.

Corporate negligence claims focus on the hospital's own institutional failures. Did the hospital have adequate staffing in the operating room?

Were the surgical instruments properly maintained and sterilized? Did the hospital enforce the Universal Protocol for preventing wrong-site surgery?

Were post-operative monitoring protocols adequate? If institutional failures contributed to the surgical error, the hospital can be held directly liable. These claims can add significant value to a case, particularly when damage caps limit the recovery against the individual surgeon.

What to Do If You Suspect a Surgical Error

If you believe you were harmed by a surgical error, take these steps immediately. First, request copies of your complete medical records, including the operative report, anesthesia records, nursing notes, and any incident reports.

Under HIPAA, you are entitled to copies of your records, and the provider must furnish them within 30 days of your request. Do this before the records can be altered — electronic health records maintain audit trails, but it is still best to request records promptly.

Second, check the statute of limitations for medical malpractice in your state because the deadline may be shorter than you expect. Many states have malpractice-specific statutes of limitations that are shorter than the general personal injury deadline, and some states require pre-suit notice or expert certification that must be completed before the limitation period expires. Acting quickly preserves your options.

Third, consult with a medical malpractice attorney who can arrange for a qualified expert witness to review your records and determine whether malpractice occurred. Most malpractice attorneys offer free initial consultations and work on contingency. Use our med mal calculator to get a preliminary estimate of your potential claim value before scheduling consultations. A surgical error that caused permanent injury, required additional surgery, or resulted in prolonged hospitalization may support a substantial claim.

Settlement Value of Surgical Error Cases

The settlement value of a surgical error case depends on the type and severity of the error, the resulting injuries, and the applicable damage cap in your state. Wrong-site surgery and retained instrument cases tend to settle for higher amounts because liability is usually clear and juries are particularly sympathetic to these types of errors. Cases involving nerve damage, organ perforation, or anesthesia injuries may settle for less if there is a legitimate dispute about whether the complication was a known risk or the result of negligence.

According to data from the National Practitioner Data Bank (maintained by the U.S. Department of Health and Human Services), the median medical malpractice payment in recent years has been approximately $250,000, with surgical cases tending to produce above-median results. The highest awards typically involve catastrophic outcomes like brain damage, paralysis, or death. The lowest awards typically involve temporary injuries that resolve with additional treatment.

Remember that your net recovery will be reduced by attorney fees (typically 33-40%), litigation costs, and any medical liens on your settlement. Our med mal calculator provides an estimate that accounts for these deductions. For the overall framework of how malpractice claims work, see our complete malpractice guide.