Legal Action for Surgical Errors and Retained Instruments in Wisconsin

Current as of: October 3, 2026 Medical Malpractice Wisconsin
Surgical errors, such as leaving a sponge inside a patient or operating on the wrong body part, are considered "never events" in Wisconsin. Victims can use the legal doctrine of "res ipsa loquitur" to hold negligent surgeons and hospitals accountable for these obvious mistakes.

The Devastating Impact of Intraoperative Mistakes

Undergoing surgery is inherently risky, but patients in Green Bay, Milwaukee, and Madison have the right to expect that their surgical team will follow basic safety protocols. When an operating room (OR) staff member makes a catastrophic mistake-such as amputating the wrong limb, severing a healthy nerve, or leaving a surgical instrument inside the body cavity-these are classified by the medical community as "never events." They are errors that should absolutely never happen if standard protocols are followed.

In Wisconsin, victims of severe surgical errors can seek justice through medical malpractice litigation. While standard malpractice requires complex expert testimony to prove a doctor made a bad judgment call, obvious surgical errors fall under a unique legal doctrine called "res ipsa loquitur" (the thing speaks for itself). As affirmed in precedents like Richards v. Mendivil, 200 Wis. 2d 665 (WI Court of Appeals 1996), if a sponge is left in your abdomen, the negligence is so obvious that the burden often shifts to the surgical team to explain how they are not at fault.

Governed by Wis. Stat. § 893.55, surgical malpractice claims require strict adherence to state deadlines and procedural rules. To ensure you recover the maximum compensation for additional corrective surgeries, lost wages, and permanent disability, it is highly recommended to hire an experienced medical malpractice attorney from our US Lawyers directory to litigate your case in courts like the Brown County Circuit Court, Green Bay or the Waukesha County Circuit Court, Waukesha.

Step-by-Step Process for Surgical Malpractice Claims

Step 1: Identifying Wrong-Site or Wrong-Patient Surgeries

Wrong-site surgery (e.g., removing the left kidney instead of the right) or wrong-patient surgery occurs due to severe communication breakdowns in the preoperative holding area. Hospitals are required to perform a "time-out" before making the first incision to verify the patient's identity and the surgical site. If the surgeon bypassed this protocol, they breached the standard of care. Your legal team will subpoena the OR logs and surgical notes to prove the time-out was skipped or ignored.

Step 2: Discovering Retained Sponges and Scalpels

Retained surgical items (RSI) are among the most common "never events." During an operation, nurses are required to perform strict counts of all sponges, needles, and instruments before closing the incision. When a sponge is left behind, it can cause severe sepsis, internal bleeding, or bowel obstructions weeks or months later. Proving this simply requires the post-operative X-ray or CT scan showing the foreign object, alongside the operative report detailing the failed count.

Step 3: Documenting Negligent Nerve Severing

While some nerve damage is a known risk of complex surgeries, negligently severing a major nerve bundle due to poor surgical technique or operating outside the surgical field is malpractice. For example, if a surgeon accidentally severs the facial nerve during a routine neck biopsy, causing permanent facial paralysis. This requires a board-certified surgical expert to review the operative report and testify that the surgeon's technique fell far below the accepted medical standard.

Step 4: Addressing Robotic Surgery Malfunctions (Surgeon Error)

Many Wisconsin hospitals now use robotic assistance systems (like the da Vinci Surgical System). While product liability covers a malfunctioning machine, the vast majority of robotic surgery injuries are due to surgeon error. If the surgeon was inadequately trained on the console and accidentally punctured an organ or burned tissue with thermal instruments, the liability rests entirely on the surgeon and the hospital credentialing board.

Step 5: Participating in Mandatory Medical Mediation

Wisconsin law heavily encourages the resolution of medical malpractice claims before a jury trial. Under Wis. Stat. § 655.43, claimants generally must file a request for mediation. You will file Form Request for Mediation, Wisconsin, Director of State Courts, Request for Medical Malpractice Mediation. This panel includes an attorney, a healthcare provider, and a layperson who review the facts and attempt to facilitate a settlement between you and the hospital's insurance carrier.

What Are the Costs of Suing for Surgical Errors?

You will not pay hourly fees to hold a negligent surgeon accountable. Wisconsin malpractice attorneys work on contingency. Expected case costs include:

Cost CategoryEstimated Amount in USD
Court Filing Fees$250 - $400
Independent Medical Exams (IME)$2,000 - $6,000
Expert Surgeon Witnesses$10,000 - $30,000 (often required for trial)
Attorney FeesUsually 33.3% of your total financial recovery

How Long Does the Process Take?

In Wisconsin, the statute of limitations for surgical malpractice is generally three years from the date the error occurred, or one year from the date you discovered the error (e.g., discovering a retained sponge a year later). Because hospitals fight aggressively to protect their surgeons' reputations, a standard surgical malpractice lawsuit typically takes 1.5 to 3 years to reach a settlement or trial verdict.

Frequently Asked Questions (FAQ)

I signed a consent form before surgery. Can I still sue?

Yes. A consent form acknowledges the known, unavoidable risks of a procedure. It does not give the surgeon a free pass to commit gross negligence, such as operating on the wrong leg or leaving a scalpel inside you.

What is the Injured Patients and Families Compensation Fund?

Wisconsin has a unique state fund that pays medical malpractice claims exceeding the primary insurance limits of the doctor. If your damages are catastrophic, your settlement may be partially paid by this state fund.

Can I sue the OR nurses as well as the surgeon?

Yes. If the nurses were responsible for performing the sponge count and they falsely reported the count was correct, they and the hospital that employs them can be named as defendants in the lawsuit.

How do I prove a retained instrument caused my current pain?

An independent medical expert will review your post-operative imaging (X-rays, MRIs) and subsequent medical records to draw a direct line between the foreign object and your infections, tissue damage, or chronic pain.


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