A patient who underwent surgery for a ureteric stone returned months later with the same pain, the same anatomical location, and a stone measuring over 17 mm. The legal dispute that followed centred on a medically uncomfortable question: was this truly a recurrence, or had the original stone never been adequately removed?

The patient had initially been diagnosed with a right ureteric calculus and was advised surgery. According to the complaint, he later underwent endoscopic intervention involving DJ stenting and subsequent lithotripsy procedures at a private hospital. He was repeatedly assured that the treatment had been successful and that the stone had been removed.

But the symptoms persisted.

The patient continued experiencing pain even after the second intervention. Fresh ultrasound and imaging studies conducted elsewhere later showed a 17.2 mm stone in the same region. When confronted, the treating doctor reportedly maintained that the earlier stone had been removed and that the new stone represented a fresh recurrence.

That explanation became the centrepiece of the defence.

The hospital argued that recurrence of urinary stones is medically recognised and that residual fragments or repeat procedures are not uncommon in urological practice. It also relied on expert opinion supporting the choice of endoscopic management as an accepted standard procedure.

However, the medico-legal scrutiny did not end there.

The Expert Committee reviewing the case noted several troubling gaps. Operative notes describing the actual intraoperative findings were unavailable. An X-ray relied upon by the hospital to show complete stone clearance was disputed by the patient, and even the expert committee observed discrepancies relating to the patient’s name on the report.

Most significantly, the timeline itself weakened the defence.

The surgery had been performed in August, while imaging by late November revealed a 17.2 mm calculus in the same location. The expert committee specifically observed that formation of a stone of such size within approximately three and a half months appeared unlikely.

That observation proved decisive.

Both the District Commission and the appellate Commission found the hospital’s theory of recurrence difficult to accept in the absence of convincing supporting evidence. The defence could not satisfactorily establish complete removal of the original stone, nor adequately explain how such a large calculus had supposedly re-formed so quickly.

The appeal was dismissed and the finding of negligence upheld.

The ruling highlights a recurring medico-legal principle in surgical disputes: when treatment success is claimed, documentation becomes critical. Where operative records are incomplete, imaging inconsistent, and the chronology itself raises doubt, the defence narrative may begin to fracture under its own improbability.

IML Insight

In stone-removal procedures, the medico-legal burden does not end with performing surgery. It extends to documenting operative findings, confirming post-procedural clearance, and maintaining reliable imaging records.

The case also illustrates how timelines themselves can become evidence. Courts may not independently interpret complex medical science, but when expert opinion indicates that a clinical explanation is medically improbable, the defence may lose credibility even without direct proof of surgical error.

Source : Order pronounced by Delhi State Consumer Disputes Redressal Commission on 17th April, 2026.