Full Breakdown
World-First Nitinol Spring Surgery Reshapes Infant’s Skull
9/8/2026, 10:26:27 PM
Core Procedure and Outcome
One-year-old Rory Potter of Chesterfield, Derbyshire, underwent a 45-minute operation in September 2025 at Great Ormond Street Hospital (GOSH) to have custom-designed nitinol springs implanted. The springs gradually widened the gap in his skull, correcting severe sagittal craniosynostosis, and were removed nine weeks later after the desired shape was achieved.
Background & Context
Sagittal craniosynostosis is a congenital condition in which the sagittal suture fuses prematurely, producing a long, narrow skull. In the United Kingdom it affects roughly one in 1,800-2,000 babies, according to the NHS. Traditional treatment uses stainless-steel springs that remain in place for weeks to months.
Development of Nitinol “Memory-Metal” Springs
GOSH surgeons and engineers at University College London refined spring-based techniques over two decades. The new springs are made from nitinol, a nickel-titanium alloy with shape-memory properties. Each spring is digitally modeled from CT scans and custom-fabricated to deliver a precise force as the skull grows. Funding came from the GOSH Charity’s Face Value project (over £1 million) and the NIHR GOSH Biomedical Research Centre.
Timeline
- April 2025 – Rory Potter is born; his parents notice an unusually long head shape.
- Shortly after birth – Diagnosis of severe sagittal craniosynostosis confirmed at GOSH.
- September 2025 – Surgery to implant nitinol springs; hospital stay of one night.
- Nine weeks later – Springs are removed after achieving the target skull shape.
Data & Statistics
- Prevalence: ~1 in 1,800–2,000 UK infants (NHS).
- Operation length: 45 minutes.
- Hospitalisation: 1 night.
- Expected benefits include avoidance of longer, more invasive procedures and reduced blood-transfusion rates.
Official Statements & Responses
Prof Owase Jeelani, consultant neurosurgeon at GOSH and lead surgeon, said the nitinol springs provide greater flexibility than traditional devices and can, in some instances, eliminate the need for additional surgery. Prof Silvia Schievano, who headed the UCL biomedical-engineering team, highlighted the collaborative effort that made the procedure possible.
Aoife Regan of the GOSH Charity emphasized the charity’s £1 million contribution through the Face Value project. Professor Marian Knight, scientific director for NIHR Infrastructure, linked the funding to the ability to deliver safer, more precise, and highly personalised treatments such as the nitinol springs.
Verbatim Quotes
What’s Next
Rory will continue routine follow-up appointments to monitor skull growth and neurodevelopment. GOSH and UCL plan to expand the use of nitinol springs to other forms of craniosynostosis, pending further clinical evaluation.
