Test Results Not Followed Up in Ireland: Medical Negligence Claims

A wrong site surgery claim in Ireland arises when a surgeon operates on the incorrect body part, the wrong patient, or performs the wrong procedure entirely. The HSE classifies wrong site surgery as a Serious Reportable Event ¹, meaning it should never occur when standard protocols are followed. Under the Patient Safety (Notifiable Incidents and Open Disclosure) Act 2023 ² (commenced 26 September 2024), hospitals now have a statutory duty to disclose these errors. Medical negligence claims skip the Injuries Resolution Board (IRB) and proceed directly to the courts, with a strict two-year time limit from the date you knew (or should have known) about the error.

What is wrong site surgery under Irish law?

Wrong site surgery occurs when a surgical team operates on the incorrect body part, the wrong side, the wrong patient, or performs the wrong procedure altogether. This isn't a failure of surgical technique. It's a failure of identification and verification that happens before the scalpel touches skin. The HSE National Policy and Procedure for Safe Surgery ³ mandates five verification stages precisely to prevent these errors.

Common examples include surgery on the wrong knee or hip, removal of a healthy kidney instead of a diseased one, spinal surgery at the wrong vertebral level (the most frequently reported type internationally), and cataract surgery on the wrong eye. The HSE SRE framework ¹ treats all of these as events that should never happen if protocols are correctly followed.

Wrong knee or hip surgery

Laterality errors in orthopaedic surgery — operating on the left knee when the right was scheduled, or replacing the wrong hip — are the most widely recognised form of wrong-site surgery. These errors typically originate during the "Sign In" phase when the operative site is confirmed against the consent form and imaging. Under Irish law, a laterality error in knee or hip surgery is almost always indefensible because the site-marking protocol specifically exists to prevent it. Orthopaedic wrong-site cases account for 35.3% of all wrong-site claims internationally ¹⁰.

Wrong kidney removal (nephrectomy)

Removal of a healthy kidney instead of the diseased one is among the most devastating wrong-site errors. The patient loses a functioning organ unnecessarily while the original condition remains untreated, potentially requiring dialysis or transplant. In Ireland, the Crumlin case (2008) involved the removal of the wrong kidney from a child. These cases attract the highest compensation ranges because the harm is irreversible and the patient faces lifelong medical consequences.

Wrong eye surgery (cataract, glaucoma, retinal)

Cataract surgery on the wrong eye is a frequently reported wrong-site event in ophthalmology. Unlike orthopaedic procedures, ophthalmic wrong-site errors can be harder to detect immediately because both eyes may have some degree of pathology. The patient undergoes an unnecessary procedure on one eye while the eye that needed treatment remains untouched. In severe cases involving glaucoma or retinal surgery, operating on the wrong eye can cause permanent vision loss in an otherwise healthy eye.

Wrong-level spinal surgery

Spinal surgery at the wrong vertebral level — for example, operating on L3-L4 instead of the intended L4-L5 — is the single most common wrong-site procedure type, accounting for 22.1% of all wrong-site claims ¹⁰. The lumbar spine accounts for 71% of wrong-level cases, followed by the cervical spine at 21% ¹¹. This subtype is sufficiently distinct and common that it warrants its own detailed analysis below.

Wrong site surgery is not the same as a general surgical error, which involves technical failure during the correct procedure. It also differs from a retained surgical item, which is a failure at the post-operative "Sign Out" stage rather than the pre-operative checks.

How common is wrong site surgery in Ireland?

Irish hospitals reported at least 63 wrong-site procedures between 2011 and 2015, according to data compiled from HSE Serious Reportable Event records and covered by the Irish Times (18 April 2016) ²¹. The RCSI Hospital Group recorded the highest incidence at 23 cases during that period. A separate HSE SRE report documented 3 wrong-body-part incidents and 1 wrong-patient surgery in a 19-month monitoring window.

More recent figures show the problem hasn't gone away. HSE Serious Reportable Event data and media reports indicate that wrong-site surgical incidents have continued across Irish public hospitals in 2023 and 2024, with multiple confirmed cases and dozens of documented near-misses during the same period. Given that reporting remains inconsistent, these figures likely understate the true scale in a system that's supposed to have "zero tolerance" for these events.

A detail that catches many people off guard: internationally, wrong-site surgery affects roughly 1 in every 112,000 operations, according to research published in the Archives of Surgery ⁹. These incidents remain stubbornly persistent despite decades of checklist implementation worldwide, as documented by the WHO Surgical Safety Checklist programme ¹⁶. Ireland's raw numbers may look small, but they represent entirely preventable harm to real patients and families.

The problem isn't improving. The Joint Commission's 2023 sentinel event annual review ¹⁷ shows a 13% increase in reported wrong-site events internationally, with 51% causing temporary severe harm and 36% causing permanent severe harm. Irish figures track this global pattern rather than departing from it.

Which surgical specialties carry the highest risk?

Not all surgical specialties carry equal wrong-site risk. A 2023 analysis of closed malpractice claims published in the Joint Commission Journal on Quality and Patient Safety ¹⁰ breaks down wrong-site claims by specialty: orthopaedic surgery accounts for 35.3% of all cases, followed by neurosurgery at 22.1% and urology at 8.8%. Spine surgery (including spinal fusion and disc excision) is the single most common procedure type at 22.1% of all wrong-site claims, followed by arthroscopy at 14.7%.

One detail that surprises clients: anonymous surveys of spine surgeons published in Spine found that 50% have performed at least one wrong-level surgery during their career ¹¹. Among hand surgeons, a separate survey in the Journal of Bone and Joint Surgery found 21% reported at least one wrong-site event ¹². A national survey of neurosurgeons estimated wrong-side craniotomies occurred at a rate of approximately 2 per 10,000 procedures, with fatigue, time pressure, and emergency operations identified as key contributing factors ¹⁵. These self-reported figures suggest the official incident numbers capture only a fraction of the true scale.

Wrong-level spinal surgery: the most common subtype

Wrong-level spinal surgery deserves separate treatment because it is the single most frequently reported form of wrong-site surgery, it has a distinct mechanism of error, and it carries an unusually high rate of successful claims.

Why wrong-level errors happen in spinal surgery

The root cause is anatomical, not procedural in the way other wrong-site errors are. Adjacent vertebrae look nearly identical under fluoroscopy, the intraoperative imaging used to confirm surgical level. The surgeon counts vertebrae from a fixed reference point — typically the sacrum — but several factors make this count unreliable. Anatomical variations occur in approximately 12% of the population: some patients have six lumbar vertebrae instead of five, others have transitional vertebrae (lumbosacral or cervicothoracic), and conditions like Klippel-Feil syndrome fuse cervical segments together. Prior spinal surgery with metalwork, patient obesity reducing image quality, and unusual positioning on the operating table all compound the difficulty. The result is that surgeons operate at L3-L4 when L4-L5 was intended, or decompress C5-C6 instead of C6-C7.

This is why standard site-marking (drawing an arrow on the correct side) is insufficient for spinal procedures. The HSE National Policy for Safe Surgery ³ requires intraoperative radiological confirmation of the vertebral level during the "Time Out" phase. When this step is skipped or misinterpreted, wrong-level surgery results.

Why wrong-level errors are often discovered late

Unlike operating on the wrong knee — which is immediately obvious — wrong-level spinal surgery may not be apparent for weeks or months. The patient recovers from surgery but the original symptoms persist because the pathology at the intended level was never addressed. It is only when follow-up MRI or CT imaging is compared with the pre-operative scans that the discrepancy becomes clear: the surgical changes are visible at the wrong level. This delayed discovery has a critical legal consequence. Under the Statute of Limitations 1957 (as amended) ⁴, the two-year limitation period runs from the date of knowledge, not the date of surgery. In wrong-level spine cases, that clock often starts when the follow-up imaging reveals the error, which may be three, six, or even twelve months after the operation.

Why wrong-level spine claims are unusually strong

A systematic review published in the Journal of Bone and Joint Surgery found that 84% of wrong-level spine cases result in indemnity payments, compared with only 30% for other orthopaedic wrong-site surgery ¹³. This near-certainty of financial exposure reflects three factors. First, the imaging evidence is unambiguous: post-operative scans objectively show the surgical intervention at a level that doesn't match the pre-operative plan. Second, the patient almost always needs a second operation at the correct level, generating quantifiable Special Damages. Third, any deterioration of the original condition during the delay between the wrong-level surgery and the corrective procedure is separately compensable.

Anonymous surveys of spine surgeons published in Spine found that 50% have performed at least one wrong-level procedure during their career ¹¹. A national survey of neurosurgeons estimated wrong-side craniotomies occurred at approximately 2 per 10,000 procedures ¹⁵. These self-reported rates suggest that wrong-level spinal surgery is significantly more common than official incident figures indicate.

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The HSE Safe Surgery Checklist: where the system breaks down

The HSE National Policy and Procedure for Safe Surgery ³, based on the WHO Surgical Safety Checklist ¹⁶, requires five safety phases for every operation in Ireland.

Wrong site surgery almost always represents a failure at the Sign In or Time Out phases. A study published in the Irish Journal of Medical Science found that while 78% of Irish hospitals had implemented the checklist, only 57% achieved full team compliance during the Time Out pause ¹⁴. That means 43% of surgical teams weren't completing the final verification step as intended.

The failures aren't usually about one person's incompetence. International root cause analyses paint a consistent picture: the Joint Commission found that communication failure was present in 70% of wrong-site events, procedural noncompliance in 64%, and leadership failures in 46% ¹⁷. The 2023 malpractice claims analysis in the Joint Commission Journal put the number even higher: failure to follow policy or protocol was a contributing factor in 83.8% of cases, and failure to review the medical records in 41.2% ¹⁰. The research makes clear that the main problem isn't the absence of safety protocols. It's the breakdown in following them.

British psychologist James Reason's "Swiss Cheese Model" of accident causation explains why. In Reason's model, serious safety failures almost never result from a single error. They happen when multiple smaller failures align across different system layers, like holes in slices of Swiss cheese lining up. For wrong-site surgery, this means the contributing factors can cluster across four distinct stages: scheduling errors (wrong patient booked), preoperative holding failures (site marking skipped or done by the wrong person), operating room breakdowns (distraction, poor hand-offs, rushed Time Out), and organisational culture problems (junior staff unable to challenge consultants, inadequate safety leadership). It's typically two or three of these holes aligning that allows the error through.

When investigating a wrong-site claim, experienced solicitors work backwards through each of the five checklist phases to identify exactly where the verification chain broke. We call this the Five-Phase Failure Trace. The Trace pinpoints whether the error originated at Team Briefing (wrong patient listed), Sign In (marking omitted), Time Out (pause skipped or rushed), or a combination. In practice, the Five-Phase Failure Trace typically reveals not one failure but two or three overlapping gaps, strengthening the case for systemic rather than individual negligence.

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Wrong-sided nerve blocks and the "Stop Before You Block" protocol

Not all wrong-site claims involve a scalpel. Wrong-sided nerve blocks occur when an anaesthetist administers regional anaesthesia to the incorrect side of the body. The injection site (for example, the neck or spine) is often physically distant from the surgical site (the hand or foot), which increases the risk of laterality errors.

The "Stop Before You Block" (SBYB) protocol, supported by the Association of Anaesthetists and the Safe Anaesthesia Liaison Group, requires a dedicated safety pause with the needle in hand, immediately before insertion. The anaesthetist must confirm the correct side by checking the consent form, asking the patient (if conscious), and visually confirming the surgical site marking.

Bypassing the SBYB protocol amounts to a clear breach of accepted anaesthetic practice in Ireland. Patients who've suffered unnecessary nerve damage or needed repeat anaesthesia from a wrong-sided block can pursue a standalone negligence claim.

How are wrong site surgery claims proved in Ireland?

Medical negligence in Ireland is governed by the Dunne Principles, established in Dunne v National Maternity Hospital [1989] IR 91. The test asks whether the medical professional departed from a standard that no practitioner of equal specialist status and skill would fall below if acting with ordinary care.

Unlike in England and Wales, where the Bolam/Bolitho test applies, Ireland uses the Dunne Principles as the sole standard. This is a critical distinction for anyone reading UK-based guidance online.

For complex diagnostic cases, applying Dunne can produce a "battle of experts" where differing clinical opinions make liability hard to prove. Wrong site surgery is fundamentally different. Operating on the wrong body part is a black-and-white departure from the mandatory HSE Safe Surgery Checklist. No reasonably competent surgeon, acting with ordinary care, bypasses the Time Out verification or ignores site markings.

A critical litigation point that most guides overlook: research by Kwaan et al found that while 62% of wrong-site cases could have been prevented by strict checklist adherence, the remaining 38% originated in errors that occurred weeks before the surgery itself. These included incorrect documentation, inaccurate labelling of radiological reports, and wrong information entered into the patient's chart. In those cases, the surgical team may have completed the Time Out correctly, but the information fed into it was already wrong. This matters for Irish claims because it widens the scope of potential breach beyond the operating room to the administrative and diagnostic chain. The Five-Phase Failure Trace captures these upstream failures by tracing back to the Team Briefing and scheduling stages.

From handling these cases in Irish courts, the practical reality is that wrong-site claims often have stronger liability prospects than other forms of medical negligence. The issue typically isn't whether there was a breach, but rather the full extent of the harm caused and the appropriate level of compensation.

Key Irish case law

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Does the hospital have to tell you? The Patient Safety Act 2023

The Patient Safety (Notifiable Incidents and Open Disclosure) Act 2023 ², commenced 26 September 2024, changed the disclosure rules for Irish hospitals. Under Schedule 1 of the Act, wrong-site surgery resulting in death triggers mandatory open disclosure. The hospital must hold a formal disclosure meeting, provide a written statement, and notify HIQA ⁶ (or the Mental Health Commission) within seven days. Non-compliance without reasonable excuse carries a Class A fine.

For non-fatal wrong-site surgery (the majority of cases), the Act doesn't create a mandatory disclosure requirement. The HSE Open Disclosure Policy still strongly encourages voluntary disclosure under the protections of the Civil Liability (Amendment) Act 2017. That Act ensures an apology given during disclosure cannot be used as an admission of legal liability in later proceedings.

One aspect the official guidance doesn't cover plainly: even when a hospital does disclose voluntarily, the disclosure meeting is not a substitute for obtaining independent legal advice. Patients sometimes accept the hospital's explanation and apology as a resolution, not realising they may have a substantial compensation claim.

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Who is liable for wrong site surgery in Ireland?

Wrong site surgery rarely results from a single person's mistake. Multiple members of the surgical team share responsibility for the pre-operative verification. Potential defendants include the lead surgeon, the marking nurse, the anaesthetist (particularly for wrong-sided blocks), and the hospital itself through vicarious liability.

The SCA manages over 10,900 active claims with an estimated outstanding liability of €5.35 billion, of which €4.24 billion relates specifically to clinical care claims. In 2024, the SCA paid €210.5 million in clinical negligence damages across all case types, according to NTMA data ¹⁶.

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What compensation applies to wrong site surgery in Ireland?

Compensation for wrong site surgery in Ireland is assessed under the Judicial Council Personal Injuries Guidelines (2021) ⁷, formerly known as the Book of Quantum (replaced in April 2021). A proposed 16.7% inflationary uplift was recommended by the Guidelines Committee in 2024, reflecting HICP price changes since the original 2021 figures. As of mid-2025, the Minister for Justice has not advanced these amendments to the Oireachtas for approval, meaning the original 2021 figures remain in force. Awards vary case by case, and the figures below are General Damages (pain, suffering, and loss of amenity) only.

Source: Judicial Council Guidelines (2021) ⁷ and Judicial Council Draft Amendments (2024) ⁸. Every case is different. These are General Damages only and do not include Special Damages (loss of earnings, future care, rehabilitation, medical expenses).

Wrong site surgery claims typically attract both General Damages and substantial Special Damages. If a healthy limb is amputated due to a laterality error, lifetime prosthetic costs, home adaptations, occupational therapy, and lost earnings can significantly exceed the General Damages figure. Psychiatric harm, particularly PTSD and clinical depression, is recognised independently of the physical injury and often forms a separate head of damage. According to the Judicial Council Guidelines Committee's 2024 review ⁸, the proposed uplift applies across all injury categories.

International malpractice data helps illustrate the typical harm profile. Among closed wrong-site surgery claims: 45.6% of patients required additional corrective surgery, 33.8% experienced ongoing pain, 10.3% suffered mobility dysfunction, 8.8% had their condition aggravated or worsened, and 7.4% resulted in death. In Irish practice, these categories translate directly to identifiable heads of damage: the corrective surgery generates its own medical expenses and recovery period, the ongoing pain supports a General Damages claim for chronic pain syndrome, and mobility dysfunction or aggravated injury feeds into future care cost calculations.

This leads to the question of how the claims process actually works in practice, and why wrong site surgery follows a different pathway to most personal injury claims.

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What should you do in the first 48 hours after wrong site surgery?

If you've just discovered that wrong site surgery happened to you or a family member, the actions you take in the next 48 hours matter. Not for the legal claim itself (that comes later), but for preserving evidence that becomes harder to obtain as time passes.

1. Do not sign anything from the hospital. You may be presented with incident forms, consent for corrective surgery, or disclosure meeting notes. Read everything, but don't sign anything without understanding what it says. You're under no obligation to sign administrative paperwork while recovering from surgery.

2. Request your medical records immediately. Submit a GDPR Subject Access Request to the hospital's data protection officer in writing, even if it's just an email from your hospital bed or from a family member. Ask for the complete surgical file: operation notes, anaesthesia records, nursing perioperative notes, consent forms, and any incident reports. Hospitals must respond within one month, but putting the request in early creates a timestamped record of when you sought access.

3. Photograph your surgical site. If site markings are still visible (or if the absence of markings is obvious), photograph them. If the wrong side was operated on and the correct side remains unmarked, that photograph becomes powerful evidence. Use your phone's timestamp function and take photos in good lighting.

4. Write down everything you remember. Record what you were told before surgery about which side or site was planned, whether anyone asked you to confirm the surgical site, whether you recall a "Time Out" pause, and what you were told after the error was discovered. Memory fades quickly after anaesthesia. A contemporaneous written account, even informal notes on your phone, carries evidential weight.

5. Ask for the names of everyone involved. The surgical team includes the lead surgeon, assisting surgeon (if any), anaesthetist, scrub nurse, and circulating nurse. You're entitled to know who was in the operating room during your procedure. This information is in the theatre register, but asking for it now signals that you're aware of what happened.

6. Do not discuss fault with hospital staff. The hospital may initiate an open disclosure meeting. You can listen, ask questions, and take notes (or have a family member take notes), but avoid making statements about your understanding of what happened. Nothing you say during disclosure can be used against the hospital in court, but nothing you say can help your position either. Listen, don't negotiate.

7. Contact a solicitor before the hospital contacts theirs. The hospital's Serious Incident Management Team begins its investigation immediately after a wrong-site event. The State Claims Agency is typically notified within days. You should have independent legal advice at least as early as the hospital has its own. Most medical negligence solicitors will take an initial call without charge.

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How does the claims process work for wrong site surgery?

Medical negligence claims in Ireland do NOT go through the Injuries Resolution Board (IRB), formerly known as the Personal Injuries Assessment Board (PIAB). They are exempt. Proceedings are issued directly in the courts, typically the High Court for claims exceeding €75,000.

1. Secure your medical records. Submit a GDPR Subject Access Request to the hospital. Request everything: surgical operation notes, anaesthesia records, nursing notes, consent forms, and the Serious Incident Management Team (SIMT) report. Many patients don't realise they can request the SIMT report directly.

2. Obtain an independent expert report. You'll need an opinion from a consultant surgeon of equal specialisation to the person who performed the surgery. For wrong-sided nerve block claims, a consultant anaesthetist's report is required. The expert must confirm both the breach and causation under the Dunne Principles.

3. Issue a letter of claim. Your solicitor writes to the SCA (for public hospital cases) or the hospital's insurer (for private cases) setting out the negligence and harm suffered. Under the Pre-Action Protocol for clinical negligence cases in Ireland, the defendant must respond within three months. The SCA typically takes the full period. Strategic timing of the letter of claim can affect your negotiating position, particularly if you're approaching limitation or the hospital has already disclosed the error through its own internal processes.

4. Resolution: mediation, negotiation, or trial. According to the SCA's most recent annual report ¹⁶, 97% of clinical negligence cases settle through negotiation or mediation without the claimant having to give evidence at a full High Court hearing. The timing matters more than most guides suggest: from initial instruction to resolution, medical negligence cases in Ireland typically take 3 to 5 years. Cases involving ongoing treatment or children can take longer.

At this point, you'll need to decide whether to accept a settlement offer or proceed to a full hearing. The next step is to discuss your specific timeline with a solicitor who can advise on realistic expectations for your case.

What does a wrong site surgery claim cost?

This is one of the first questions people ask and one of the last that most guides answer. The short version: most medical negligence claims in Ireland, including wrong site surgery, are taken on a conditional fee basis where the solicitor's professional fees are only payable if the claim succeeds. The longer version involves some important details.

Irish solicitors are permitted to enter conditional fee agreements with clients, meaning you don't pay the solicitor's own professional fees unless the case results in a settlement or court award. This is sometimes referred to informally as "no win, no fee," though the Law Society of Ireland's Solicitors Advertising Regulations 2019 prohibit solicitors from advertising that phrase. The arrangement itself is lawful and common, but it cannot be promoted as a marketing term. If you see a website openly advertising "no win no fee" services, approach with caution: it may be a claims harvesting site operating outside Irish regulation, or a solicitor breaching their advertising obligations.

What a conditional fee agreement does NOT cover is equally important. Even if you don't pay your solicitor's professional fees unless you win, you may still face liability for disbursements (out-of-pocket costs incurred in preparing the case). For medical negligence claims, the main disbursements include the independent expert medical report (typically €2,000 to €5,000 depending on the specialty), court filing fees (stamp duty on the Civil Bill or Personal Injuries Summons), and any additional medical assessments. Many solicitors will fund these disbursements upfront and recover them from the settlement, but this is a matter of individual firm policy, not a legal requirement. Clarify this before signing the engagement letter.

There's also the question of adverse costs. If a medical negligence case is unsuccessful at trial, the losing party can be ordered to pay the winning party's reasonable legal costs. This risk is real, but in practice, wrong site surgery claims rarely reach a contested trial precisely because liability is so clear. The 97% settlement rate for SCA clinical negligence claims reflects this. Some solicitors arrange After the Event (ATE) insurance to cover adverse costs risk, and this should be discussed at the outset.

One rule that catches people off guard: under Irish law, a solicitor cannot calculate their fees as a percentage or proportion of any damages awarded. This differs from the US contingency fee model. Your solicitor's fees must be agreed in advance or assessed by a Legal Costs Adjudicator if disputed.

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What are the time limits for a wrong site surgery claim?

The Statute of Limitations 1957 ⁴ (as amended by the Civil Liability and Courts Act 2004) sets the deadline at two years less one day from the "date of knowledge." For wrong site surgery, the clock usually starts ticking almost immediately because the error is typically discovered in the recovery room.

Unlike in England and Wales, where the limitation period for personal injury is three years, Ireland's two-year window is shorter. If you've read UK guidance that says you have three years, that does not apply here. Missing the Irish deadline can permanently bar your claim.

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What most guides miss about wrong site surgery claims in Ireland

Most online guides treat wrong-site surgery as a straightforward "never event" claim and stop there. The reality in Irish practice is more layered.

The SIMT report is your most powerful early evidence. Many claimants don't know that the hospital's Serious Incident Management Team conducts an internal investigation after every SRE. You have a legal right to request this report under GDPR. It often contains admissions and factual findings that the hospital's legal team would prefer you didn't see. Request it before the hospital's solicitors have a chance to advise on its disclosure.

The consent form isn't proof of correct-site verification. A signed consent form confirming "right knee arthroscopy" doesn't prove the Time Out pause actually happened. Consent is taken hours or even days before surgery. The verification that matters happens in the operating room, and it's documented (or not documented) in the nursing perioperative record, not the consent form.

Wrong-level spinal surgery has a different evidence trail. Unlike wrong-side surgery, wrong-level spinal procedures (operating on L3-L4 instead of L4-L5) often require post-operative imaging comparison to prove the error. The patient may not realise the wrong level was operated on until follow-up scans show the original pathology remains untreated. This leads to the question of when the limitation clock starts, which is often later than patients expect.

The anatomy itself creates the risk. The lumbar spine accounts for 71% of all wrong-level cases, followed by the cervical spine at 21% ¹¹. Anatomical variations between patients, including congenital conditions like block vertebrae (Klippel-Feil syndrome) or hemivertebrae, prior spinal surgery, and obesity affecting imaging quality, can make vertebral enumeration genuinely difficult. This doesn't excuse the error, but it does explain why wrong-level spine surgery occurs at rates significantly higher than other wrong-site events. The legal consequence is striking: a systematic review in the Journal of Bone and Joint Surgery found that 84% of wrong-level spine cases internationally result in indemnity payments, compared with only 30% for other orthopaedic wrong-site surgery ¹³. The near-certainty of financial exposure reflects the strength of these claims.

You still need the correct surgery, and that creates a separate problem. After wrong-site surgery, the patient's original medical condition remains untreated. A patient who had the wrong knee operated on still needs their other knee repaired. Who pays for the correct procedure? The corrective surgery generates its own recovery period, its own time off work, and its own risk of complications. In Irish claims, the full cost of the corrective procedure, including the extended rehabilitation and any delay-related worsening of the original condition, forms a distinct head of Special Damages. If the delay in receiving the correct surgery caused the underlying condition to deteriorate (for example, a torn ligament that worsened over the months between the wrong-site error and the corrective procedure), the additional harm attributable to the delay is separately compensable. This is a dimension that claimants often don't think to raise and that most solicitors' websites don't address.

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Real wrong site surgery cases in Ireland

Most guides discuss wrong site surgery in the abstract. These are documented Irish cases that illustrate how verification failures happen in practice and what consequences follow.

Our Lady's Children's Hospital, Crumlin (2008): wrong kidney removed from a child

In March 2008, a six-year-old boy had his healthy left kidney removed at Our Lady's Children's Hospital in Crumlin when the diseased right kidney should have been taken. The child was left with a right kidney functioning at just 9%, facing a future of dialysis or transplant. An independent investigation by Great Ormond Street Hospital in London identified 10 contributory factors to the error.

The failure chain started two months before the surgery. During an outpatient consultation in January 2008, the consultant paediatric surgeon mistakenly recorded in the medical notes that the child needed his left kidney removed when the correct side was the right. That single documentation error then passed unchallenged through every subsequent stage. No X-rays were reviewed when the child was listed for surgery, when he was admitted the day before the operation, during the morning ward round on the day of surgery, or in the operating theatre before the incision was made.

The operation was delegated to a specialist registrar who had not seen the patient before and had no experience performing unsupervised nephrectomies. The child's parents raised concerns on multiple occasions about which side was being operated on. A ward nurse passed the parents' concern to the receiving nurse during theatre handover. The concern was not adequately addressed. When the consultant entered the operating room 45 minutes into the procedure, he noticed more bleeding than expected and that the kidney being removed looked healthy. He checked the X-rays and immediately realised the wrong organ had been taken. It could not be reimplanted.

The subsequent Medical Council Fitness to Practise inquiry in 2010 concluded without a finding of professional misconduct after both doctors gave undertakings under Section 67 of the Medical Practitioners Act 2007, including commitments to never operate again without reviewing imaging and to prepare a joint guide on lessons learned. The hospital introduced a formal correct-site surgery policy and changed its X-ray management procedures.

This case illustrates three points that are directly relevant to current claims. First, the error originated in documentation weeks before the surgery, not in the operating room itself, confirming the "one-third problem" research showing 38% of wrong-site errors are embedded in records before the checklist can catch them. Second, the parents' repeated concerns were dismissed by the surgical team, demonstrating the "hierarchical gradient" that root cause analyses consistently identify as a contributing factor. Third, Crumlin did not have a site-marking policy at the time of the incident despite a previous near-miss seven years earlier, showing that systemic failures often have documented warning signs.

Corbally Fitness to Practise Committee (2013): second wrong-site finding

The same consultant surgeon from the Crumlin kidney case was later the subject of a second Medical Council inquiry involving a different wrong-site procedure at the same hospital. In that case, a child received a tongue-tie release procedure when the correct procedure was to release the fold of skin attaching the upper lip to the gum. The Fitness to Practise Committee found poor professional performance, identifying systemic failures including an inadequate surgical booking and coding system, failure to implement a correct-site policy, and issues with clinical leadership. The inquiry found the surgeon had incorrectly described the required procedure in the medical notes, mirroring the documentation-origin pattern from the 2008 case.

The recurrence at the same hospital, involving the same clinician, underscores why the Five-Phase Failure Trace examines institutional culture and governance alongside individual actions. A single wrong-site event is a catastrophe. A pattern of wrong-site events at the same institution points to systemic governance failures that strengthen the organisational negligence dimension of a claim.

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Frequently asked questions about wrong site surgery claims

What to consider next

What if wrong site surgery happened to my child?

Parents or guardians can bring a claim on behalf of a minor. The two-year limitation period doesn't start until the child turns 18, giving additional time. A solicitor experienced in medical negligence involving minors can advise on the specific process, including court approval of any settlement.

Can I request the hospital's internal investigation report?

Yes. The hospital's Serious Incident Management Team (SIMT) report can be obtained through a GDPR Subject Access Request or through your solicitor via the pre-action disclosure process. This document often provides critical evidence of what went wrong, documented by the hospital's own investigation team.

What happens if I've already accepted the hospital's explanation?

Accepting an explanation during an open disclosure meeting does not waive your right to pursue a legal claim. Unless you've signed a legal settlement agreement (which requires independent legal advice), your claim rights remain intact within the two-year limitation period.

References

Irish Legislation & Government Sources

1. HSE Serious Reportable Events Framework. Health Service Executive. Accessed February 2026.
2. Patient Safety (Notifiable Incidents and Open Disclosure) Act 2023. Irish Statute Book (No. 10 of 2023). Commenced 26 September 2024.
3. National Policy and Procedure for Safe Surgery. HSE/RCSI National Clinical Programme in Surgery. Updated 2024.
4. Statute of Limitations 1957 (as amended by the Civil Liability and Courts Act 2004). Irish Statute Book.
5. State Claims Agency Annual Report 2024. National Treasury Management Agency.
6. Health Information and Quality Authority (HIQA). Patient safety monitoring and regulation.
7. Personal Injuries Guidelines. Judicial Council of Ireland, 2021.
8. Draft Amendments to Personal Injuries Guidelines. Judicial Council Guidelines Committee, 2024 (proposed, not yet enacted).

Peer-Reviewed Research

9. Kwaan MR, Studdert DM, Zinner MJ, Gawande AA. Incidence, patterns, and prevention of wrong-site surgery. Archives of Surgery. 2006;141(4):353–357. PubMed: 16618892
10. Tan J, Ross JM, Wright D, Pimentel MPT, Urman RD. A contemporary analysis of closed claims related to wrong-site surgery. Joint Commission Journal on Quality and Patient Safety. 2023;49(5):265–273. PubMed: 36925434
11. Mody MG, Nourbakhsh A, Stahl DL, Gibbs M, Alfawareh M, Garges KJ. The prevalence of wrong level surgery among spine surgeons. Spine. 2008;33(2):194–198. PubMed: 18197106
12. Meinberg EG, Stern PJ. Incidence of wrong-site surgery among hand surgeons. Journal of Bone and Joint Surgery (American). 2003;85(2):193–197. PubMed: 12571293
13. Longo UG, Loppini M, Romeo G, Maffulli N, Denaro V. Errors of level in spinal surgery: an evidence-based systematic review. Journal of Bone and Joint Surgery (British). 2012;94(11):1546–1550. PubMed: 23109637
14. Nugent E, Hseino H, Ryan K, Traynor O, Neary P, Keane FBV. The surgical safety checklist survey: a national perspective on patient safety. Irish Journal of Medical Science. 2013;182(2):171–176. doi:10.1007/s11845-012-0851-4
15. Jhawar BS, Mitsis D, Duggal N. Wrong-sided and wrong-level neurosurgery: a national survey. Journal of Neurosurgery: Spine. 2007;7(5):467–472. PubMed: 17977186

International Standards & Sentinel Event Data

16. WHO Surgical Safety Checklist: Tools and Resources. World Health Organization.
17. Joint Commission Sentinel Event Data: 2023 Annual Review. ACS Bulletin. July/August 2024;109(7).
18. Study Analyzes Wrong-Site Surgery Data in Medical Malpractice Complaints. ACS Bulletin. June 2023;108(6).

Irish Case Law

19. Dunne v National Maternity Hospital [1989] IR 91 (Supreme Court). Established the standard test for medical negligence in Ireland. courts.ie
20. Morrissey v HSE [2020] IESC 6 (Supreme Court, 19 March 2020). Established non-delegable duty of care for hospital employers. courts.ie

Irish Media & Incident Reporting

21. HSE Serious Reportable Event data (2011–2015) as reported in Irish Times, 18 April 2016. 63 wrong-site procedures across Irish hospital groups.