“…Many articles show, often in a retrospective way, cost, efficiency and practicability analysis [4,5,8,11]. Wade and Oliver [12] speak of, when looking back, ''a complicated mix of failures, near successes, unconditional successes, failed promises, lack of standardised vocabularies and structures.'' It is regarded as a relief by most radiologists, but more or less as a nuisance by most orthopaedic surgeons.…”