A retained surgical instrument is a medical device, sponge, or other object left inside a patient’s body during surgery. These incidents represent one of the most serious categories of medical malpractice—so serious that hospitals, insurers, and regulators classify them as “never events,” meaning they should never happen under proper medical care. In January 2026, a jury awarded $16.75 million to a patient who had a 13-inch metal retractor left inside her abdomen for 58 days following surgery to remove a 75-pound benign tumor. The retractor remained undetected until complications forced imaging that revealed the foreign object.
This case exemplifies the severity of retained surgical instruments: they cause real physical harm, emotional trauma, and often require additional surgeries to remove. Retained surgical instruments occur far more often than most people realize. Approximately 1 in 5,500 surgeries nationwide results in a retained instrument, translating to roughly 1,500 cases per year across the United States. Some estimates from Johns Hopkins put the number even higher, suggesting over 4,000 instances annually. Patients who suffer this harm have strong legal grounds for compensation, with settlements and verdicts ranging from hundreds of thousands to millions of dollars depending on the severity of injury and permanence of damage.
Table of Contents
- How Common Are Retained Surgical Instruments in U.S. Healthcare?
- What Types of Surgical Items Get Left Behind and What Harm Do They Cause?
- Recent Major Lawsuits and Verdict Amounts in Retained Surgical Instrument Cases
- What Compensation is Available for Retained Surgical Instrument Injuries?
- The Legal Basis for Liability in Retained Surgical Instrument Cases
- Detecting Retained Surgical Instruments and Diagnostic Challenges
- Prevention Efforts and the Future of Retained Surgical Instrument Litigation
- Conclusion
- Frequently Asked Questions
How Common Are Retained Surgical Instruments in U.S. Healthcare?
The prevalence of retained surgical instruments is both troubling and well-documented. With over 28 million surgical procedures performed annually in the United States, the 1-in-5,500 rate translates to approximately 1,500 cases of retained instruments each year. This statistic alone reveals a systemic problem affecting thousands of patients nationwide. More alarming is that this represents only confirmed cases—some retained objects may go undetected indefinitely if they don’t cause immediate complications, suggesting the true number may be higher.
Johns Hopkins research indicates an even more sobering picture: over 4,000 people per year have surgical instruments or equipment left behind after routine surgeries. The variation in these estimates reflects differences in how cases are identified, reported, and classified. Some hospitals may underreport incidents due to liability concerns, while others maintain rigorous tracking systems. What remains constant is that retained surgical instruments are far from rare anomalies—they are recurring preventable errors that happen regularly in operating rooms across the country, affecting patients in emergency departments, specialty surgeries, and routine procedures alike.
What Types of Surgical Items Get Left Behind and What Harm Do They Cause?
The most common retained surgical items are sponges, which account for more than two-thirds of all retained object cases. Surgical sponges are intentionally placed inside the body to absorb blood during procedures, making them necessary tools. However, this same necessity makes them easy to lose track of—sponges can get pushed into deep cavities, hidden beneath tissue layers, or accidentally overlooked during closure. Other frequently retained items include needles, instruments like retractors and clamps, and pieces of equipment including drains and guidewires.
The 13-inch metal retractor left in the January 2026 case represents a larger instrument that should theoretically be easier to account for, yet it remained in the patient’s body for nearly two months. The physical consequences of retained surgical instruments vary widely depending on the object’s size, location, and composition. Small sponges may cause chronic inflammation, pain, and infection, while larger metal instruments can cause immediate and severe complications including bowel obstruction, perforation, and life-threatening infections. Some patients experience ongoing pain and organ dysfunction from scar tissue formation around retained objects. A critical limitation of current medical practice is that prevention relies heavily on manual counting systems and visual inspection—methods that are inherently human and subject to error, particularly during long or complex surgeries where attention and fatigue become factors.
Recent Major Lawsuits and Verdict Amounts in Retained Surgical Instrument Cases
The January 2026 verdict of $16.75 million represents one of the largest recent awards in retained surgical instrument litigation. The case involved a 13-inch metal retractor left inside a patient’s abdomen after tumor extraction surgery. The retractor remained undetected for 58 days until the patient’s symptoms prompted imaging that revealed the foreign object. This extended period of undetected contamination is typical in many cases—the initial surgery occurs, the object remains, and only later complications (pain, fever, organ dysfunction) trigger the discovery. The size of this verdict reflects both the severity of the patient’s suffering and the hospital’s clear breach of duty in losing track of a large surgical instrument.
Another significant case is Florida’s first retained sponge verdict, which awarded $4.5 million and took 12 years to resolve from initial incident to final judgment. This case underscores two important realities of retained surgical instrument litigation: first, these cases can be extraordinarily time-consuming to litigate, and second, juries recognize the seriousness of the injury by awarding substantial damages. A 2024 lawsuit filed in Texas involved a patient at Baylor University Medical Center who is suing after a 10-inch metal surgical instrument was left inside his body following cancerous tumor extraction. The patient claims severe ongoing pain and complications from the retained instrument. These cases demonstrate a pattern: larger institutions are not immune to these errors, and patients are increasingly willing to pursue litigation when faced with the reality of a foreign object left inside their body.
What Compensation is Available for Retained Surgical Instrument Injuries?
Settlement and verdict amounts in retained surgical instrument cases vary based on the severity of injury, permanence of damage, and the evidence of negligence. Historical data from 2007–2011 showed an average indemnity payout of approximately $473,000 for retained surgical item claims. However, this average obscures a wide range: general hospital malpractice claims from retained surgical objects typically cost between $100,000 and $200,000 per case. For more serious injuries involving permanent major damage, average claim amounts rise to approximately $2 million or more.
The January 2026 verdict of $16.75 million and the $4.5 million Florida verdict both exceed typical ranges, reflecting the severity of complications in those particular cases. Compensation in these cases covers multiple categories: medical expenses for additional surgeries needed to remove the retained object, ongoing treatment for complications, pain and suffering, loss of income if the injury prevents work, and sometimes punitive damages intended to deter future negligence. A critical limitation is that compensation cannot undo the physical and psychological harm of discovering a foreign object was left inside your body, nor can it restore health in cases where permanent damage occurred. The wide variation in settlement amounts also means outcomes can be unpredictable—two similar cases may yield vastly different results depending on jurisdiction, jury composition, and quality of legal representation.
The Legal Basis for Liability in Retained Surgical Instrument Cases
Retained surgical instruments represent clear negligence because hospitals have a duty to account for every item used during surgery through standardized counting procedures. Most operating rooms use a protocol requiring counts of sponges, needles, and instruments at specific points: before surgery begins, before closure of any major body cavity, and before final closure. When proper counting procedures are followed and documented, retained instruments should not occur. The existence of a retained object is therefore powerful evidence that established safety protocols were not followed—it’s often the smoking gun in litigation.
However, there are important limitations and defenses that can complicate these cases. Some hospitals may argue that a patient’s condition or anatomy made proper counting difficult, or that the retained object was left intentionally during an emergency situation where the patient’s life took priority. These defenses rarely succeed, but they illustrate why the quality of legal representation matters significantly. The burden of proof in civil malpractice cases is lower than in criminal cases—the standard is “preponderance of the evidence” (more likely than not), which favors plaintiffs when a retained object is documented. Medical testimony almost universally supports that retained surgical instruments are preventable errors, as no medical organization defends the practice.
Detecting Retained Surgical Instruments and Diagnostic Challenges
Retained surgical instruments are typically discovered through imaging like X-rays, CT scans, or ultrasounds when patients develop symptoms prompting investigation. The challenge is that some retained objects may not cause immediate symptoms, leading to delayed detection. The 58-day delay in the January 2026 case demonstrates this problem—the patient had to suffer through weeks of undiagnosed complications before imaging revealed the cause. Once detected, removing a retained object usually requires another surgical procedure, which carries its own risks and adds to the patient’s medical bills and trauma.
A significant warning for patients is that not all retained objects will show up on every type of imaging. Certain plastics and some sponge materials can be less visible on X-rays compared to metal instruments. Additionally, some surgical sites are more difficult to image clearly, particularly deep abdominal cavities or areas obscured by recent surgical changes. This means a negative imaging result does not guarantee an object wasn’t left behind. Patients who develop persistent pain, fever, or organ dysfunction after surgery should insist on thorough investigation and potentially seek second opinions rather than accepting dismissive explanations.
Prevention Efforts and the Future of Retained Surgical Instrument Litigation
The medical and legal communities have increasingly focused on preventing retained surgical instruments through technology and protocol improvements. Some hospitals now use radiofrequency tags attached to sponges, needles, and instruments that can be detected by a scanning device at the end of surgery—similar to anti-theft technology in retail. These systems have shown promise in reducing incidents, but adoption remains inconsistent across hospitals due to cost. Traditional counting methods remain the primary safeguard, and they fail frequently enough to support thousands of lawsuits annually.
Looking forward, litigation in this area will likely continue as hospitals gradually implement new technology while older institutions maintain outdated systems. The 2026 verdicts and ongoing cases send a clear message that juries hold hospitals accountable for these “never events,” which should incentivize investment in prevention systems. However, widespread adoption of technology like radiofrequency tagging will likely take years, meaning patients will continue to be injured by retained instruments. For patients facing this situation, early legal consultation after discovery of a retained object is essential—statutes of limitations vary by state, and evidence preservation is critical in these cases.
Conclusion
Retained surgical instruments are serious medical errors that occur approximately 1,500 times per year in the United States and cause significant physical and emotional harm to patients. Recent major verdicts, including a $16.75 million award in 2026 and a $4.5 million Florida verdict, demonstrate that juries recognize the severity of these injuries and hospitals’ responsibility to prevent them through proper counting procedures. Compensation for affected patients typically ranges from $100,000 to $200,000 for general cases, with amounts reaching $2 million or more for cases involving permanent damage.
If you or a family member has experienced a retained surgical instrument, you have legal rights and should contact an experienced medical malpractice attorney as soon as possible. Time is critical in these cases for both evidence preservation and compliance with state-specific filing deadlines. An attorney can evaluate whether your hospital breached its duty through failure to follow proper counting protocols and help you pursue compensation for medical expenses, pain and suffering, and other damages related to this serious medical error.
Frequently Asked Questions
How common are retained surgical instruments?
Approximately 1 in 5,500 surgeries results in a retained surgical instrument, meaning roughly 1,500 cases occur annually in the U.S. Some sources estimate over 4,000 instances per year when accounting for unreported incidents.
What types of items get left behind most often?
Surgical sponges account for more than two-thirds of retained object cases. Other common items include needles, instruments like retractors and clamps, drains, and guidewires.
How much compensation can I get?
Compensation ranges widely from $100,000 to $200,000 for typical cases, with amounts reaching $2 million or more for cases involving permanent major damage. Recent large verdicts, like the $16.75 million award in 2026, exceed these ranges but represent the most serious injuries.
How long does it take to discover a retained surgical instrument?
Discovery varies—some objects cause immediate symptoms prompting quick detection, while others remain undetected for weeks or months. The January 2026 case involved a 58-day delay before the retained retractor was discovered through imaging.
What should I do if I think a surgical instrument was left inside me?
Seek immediate medical attention and request thorough imaging (X-rays, CT scans). Once a retained object is confirmed, consult with a medical malpractice attorney as soon as possible to understand your legal rights and preserve evidence.
Can hospitals defend themselves against retained surgical instrument claims?
Defense is difficult because hospitals have clear protocols requiring counting of all surgical items. The existence of a retained object usually proves these protocols were not followed, which constitutes negligence.