Retained Surgical Sponges: Auditing the Count to Tie the Item to the Right Surgery

A structured operative chronology turns a retained sponge finding into a dated, sourced sequence a malpractice team can question a witness from. Holding a radiology report that shows a retained gauze, and a patient who has had three abdominal surgeries in five years? You are not alone, and the answer is in the operative record rather than in the imaging alone.

Retained items are a settled enough problem in United States law that the governing rules are well developed, and recent verdicts show the same pattern still plays out at trial. Both are worth holding next to a case file before the theory hardens.

What United States law and a recent verdict show

The rule that lets many of these cases proceed at all traces to Flanagan v. Mount Eden General Hospital (24 N.Y.2d 427, New York Court of Appeals, 1969), where surgical clamps left during a 1958 gallbladder operation went undetected until an X-ray found them nearly eight years later. The court held that in a foreign object case the statute of limitations does not run from the date of the operation, but from the point at which the patient could reasonably have discovered the object. That discovery rule is reflected in New York's foreign object statute, CPLR 214-a, and in the foreign object rules many other states apply, which is why a sponge found years later can still be actionable. The exact limitations rule is jurisdiction specific and a question for counsel.

A modern verdict shows what auditing the count can be worth. In a case decided in Jefferson County, Kentucky in 2019, a 12 by 12 inch sponge left during 2011 heart surgery went undetected for roughly four years, until a 2015 CT scan found it eroding into the patient's intestine; the jury returned a $10.5 million verdict after evidence that the sponge count required by hospital policy had not been performed. The count record, and its absence, was central to the case. Source Credit: Jefferson County, Kentucky Circuit Court decision, as reported by Clinician.com, 2020.

An overseas ruling echoes the same evidentiary shape. A District Consumer Disputes Redressal Commission in Coimbatore, India, reported in mid 2026, held a gynaecologist and a private hospital jointly liable after a gauze-like material was found months after a hysterectomy, on a res ipsa loquitur reasoning. It carries no authority in any United States court and should not be cited as if it did, but it illustrates the point every one of these cases turns on: a retained item speaks loudly to whether something went wrong, and far more quietly to which operation, which team, and which later injury. Source Credit: District Consumer Disputes Redressal Commission, Coimbatore, as reported by LiveLaw and Medical Dialogues, 2026.

Res ipsa loquitur translates as "the thing speaks for itself." In United States malpractice practice the doctrine is jurisdiction specific, and whether it applies to a given retained item claim, and how much expert testimony it removes, is a legal question for counsel. Even where it is available, it tends to speak to the fact of negligence rather than to attribution or to the medical link between the retained item and each claimed complication. Those still get proved from records.

Why an obvious retained item case still turns on the record

Retained surgical items sit on the serious reportable event lists that hospitals and payers treat as never events, and the Centers for Medicare and Medicaid Services has treated a foreign object retained after surgery as a hospital-acquired condition for payment purposes since 2008. That policy framing tells you the event is regarded as preventable. It does not build a case file.

Sponges are the most frequently retained item, accounting for about 34 percent of reported cases, and reported retention occurs in roughly 1 in 10,000 surgical procedures.

Source Credit: AORN Outpatient Surgery reporting on retained surgical item data, 2025.

Here is where files stall. A gossypiboma, meaning a retained surgical sponge with the surrounding inflammatory mass, can sit for months or years before it produces symptoms. By then the patient has often had additional imaging, additional surgery, and sometimes an additional surgeon. The defense position writes itself, and it is usually some version of "not our operation."

The attribution problem with multiple abdominal surgeries

When the operative history includes more than one entry into the same cavity, the record has to answer a narrow set of questions before anything else matters.

• Which operations opened the space where the item was found, and on what dates
• Which surgical team, scrub personnel and circulating nurse were documented for each of those operations
• What the count documentation shows for each operation, including whether a count was recorded as correct, incorrect, or not documented at all
• What imaging exists between the operations, and whether a radiopaque marker is visible on any study that predates the operation the plaintiff is pointing to
• What the closure and post-operative notes describe, including any intraoperative film obtained for a count discrepancy

That last item is often decisive. A sponge marker visible on a study taken before the index surgery moves the case. A sponge marker absent from a study taken after it moves the case the other way. Neither observation is useful unless the imaging is dated, sequenced and cross-referenced against the operative list, which is a records task before it is an expert task.

This is where a defensible medical chronology stops being a summary and starts being the argument.

Auditing the count, step by step

An audit of the count is really an audit of three parallel records that should agree with each other and often do not. Let us take them in the order that surfaces problems fastest.

1. Build the operative inventory first

List every surgical and interventional procedure in the relevant anatomic region, with date, facility, surgeon of record, procedure name and CPT code where documented. Include procedures the plaintiff may not have mentioned, because the ones that get omitted at intake are the ones opposing counsel finds. An operative inventory is a half day of work that prevents a theory built on an incomplete list.

2. Pull the count documentation for each operation

Count records live in more than one place. The intraoperative nursing record or perioperative flowsheet usually carries the initial, closing and final counts. The operative report may state that counts were correct. The circulating nurse notes, the incident or variance report if one exists, and the OR log or scheduling record round it out. Read them against each other. A perioperative record that shows a count discrepancy and an operative report that states counts were correct is a flag, and it is a flag you want found in review rather than in deposition.

AORN guidance describes a standardized count process with direct visualization of every item and closed loop communication of the result, performed by two people, with a baseline count before the patient enters the room. Adjunct technology such as barcoded sponges or radio frequency detection supports the manual count rather than replacing it. Comparing what the record shows against that described process is a documentation comparison, not an opinion on the standard of care.

Source Credit: AORN guidance on prevention of unintentional retained surgical items, as reported by AORN Outpatient Surgery, 2025.

3. Sequence the imaging

Every abdominal or pelvic study in the window gets a line: date, modality, indication, the reported findings, and specifically whether any radiopaque marker, retained density or unexplained mass is described. Where the report is silent, the record notes that the report is silent, because a films-versus-reports question may come up later. The point of the sequence is to bracket the item between the last study that does not show it and the first study that does.

4. Cross-reference personnel and facility records

Match staff documented on each operative record against the count documentation for the same case. Where a name appears on the operative report but not the perioperative record, or the reverse, that inconsistency goes on the flag list with a page citation.

5. Build the chronology and flag, do not conclude

The output is a dated chronology that runs the operative events, the count entries, the imaging findings and the post-operative clinical course down one timeline, with every entry sourced to a file and page. Alongside it sits a flag list: missing records, undocumented counts, internal contradictions, unexplained date gaps. Each flag is written so an attorney can act on it in a single read. What a flag means legally is not for the reviewer to say. Sorting and indexing the operative record is the step that makes all of it possible.

Where the boundary sits, and why it protects your file

LezDo TechMed organizes documented medical information for review by the appropriate qualified legal, medical, insurance or claims professional. On a retained item file that means the review team builds the operative inventory, the count comparison, the imaging sequence, the chronology and the flag list. It does not opine on whether the count process fell below the standard of care, whether the surgeon was negligent, whether res ipsa loquitur applies in the jurisdiction, or what the claim is worth.

I want to be direct about this, because the request often arrives phrased the other way. Firms sometimes ask for a review that will "establish the breach" or "prove the sponge caused the fistula." A record review team should not answer either question. Breach and standard of care are for a qualified expert and for counsel. The medical link between a retained item and a specific later complication is a causation opinion, which belongs to a treating or retained physician. What the review supplies is the sourced factual spine those opinions get built on.

That boundary is not caution for its own sake. Work product that keeps the reviewer inside it is easier to defend when opposing counsel asks who reached which conclusion and from what document.

What a count audit gives counsel

• A closed operative list. Every procedure in the region, dated and sourced, so the attribution argument is made on a complete set rather than the set the client remembered.
• A side by side count comparison. What each record says about the count for each operation, including where a record is silent.
• A bracketed imaging sequence. The last study without the finding and the first study with it, dated and cited.
• A flag list with page citations. Every inconsistency traceable to a file and page, which is what makes it usable in a deposition or a meet and confer.

On handling, LezDo TechMed maintains ISO 27001 and ISO 9001:2015 certifications and has completed a SOC 2 Type II attestation; processes are designed to comply with applicable HIPAA and GDPR requirements. Reviewers work under confidentiality obligations, and no identifiable case facts leave the engagement.

A first pass on a retained item file

If a retained sponge case has just come in, the first pass is about the operative list rather than about the theory. Get every facility that touched the abdomen or pelvis, request the perioperative nursing records by name rather than relying on a general chart request, and confirm whether the imaging was obtained as films or reports only. Ask early about limitations, because several states apply a separate rule to foreign object claims. New York, for example, allows an action to be commenced within one year of the discovery of a foreign object or of facts that would reasonably lead to that discovery, whichever comes earlier, which is a different clock from the general malpractice period. Which rule governs a given file is for counsel to determine.

Source Credit: New York Civil Practice Law and Rules section 214-a, foreign object provision. Cited as an example of a state specific rule, not as legal advice.

Then get the records sorted, indexed and chronologized before anyone reads for argument. The teams that move fastest at deposition are the ones that spent the first week being boring on purpose.

Ready to hand off the operative record build so your team can work the legal questions? Partner with LezDo TechMed, or start with a single operative episode and see the chronology before you commit the full file.