Orwyn runs on rules a named consultant surgeon has written and signed off, built from the strongest available research evidence and national guidance: NICE, the Getting It Right First Time programme and the British orthopaedic specialist societies, including the British Orthopaedic Association, the British Association for Surgery of the Knee and the British Hip Society. It is not a model whose reasoning cannot be inspected. Anyone reviewing a decision can be shown why it was made.
Safety questions must be answered before Orwyn will suggest anything at all. That behaviour is deliberate and it does not bend.
Orwyn records every decision, every time a clinician disagrees with it, and what happened to the patient in the end. That record has one purpose, which is to improve the criteria and to tell the clinician who made a referral what became of it. Three limits are built in rather than promised.
A clinician sees the outcomes of their own patients. There is no league table, no ranking and no comparison against colleagues, at any level that could identify a person.
Outcome and disagreement data is not provided to a line manager, an appraiser or a service lead in a form that identifies an individual clinician. Disagreeing with the tool is expected, useful, and never counted against anyone.
Nothing in that record changes how Orwyn behaves. The criteria change only when a named consultant surgeon changes them, in writing, with a version and a date, so every decision can be traced to the exact rule that produced it.
Orwyn is health technology built to the engineering and safety standards expected of regulated clinical software. Clinical risk management follows DCB0129, the NHS standard for manufacturers of health software, and the named Clinical Safety Officer is Dr Arj Imbuldeniya, appointed on 19 August 2026.
He is also the surgeon who wrote the rules, and we would rather say so than have you find it. It is permitted under the standard and it is ordinary in a company this size, but it puts the weight on the parts that do not depend on trusting one person: every rule carries a version, a date and a source you can open and read, every decision traces to the exact rule that produced it, and the criteria change only in writing.
The nine knee safety rules are approved for implementation and for evaluation. They are not approved for live clinical use, which additionally requires the completed clinical safety case report and the deploying organisation's own assessment under the companion standard, DCB0160.
Knee first, then hip, then the rest of the musculoskeletal system. One joint done properly before the next.
Orwyn is founded and led by a dual fellowship-trained consultant orthopaedic knee, hip and trauma surgeon, with over a decade's experience as a consultant and more than 25 years in orthopaedics and musculoskeletal care.
Who is behind Orwyn