Lucas's working life was spent in orthopaedics, first as orthopaedic surgeon at Walton Hospital, Liverpool, and as first assistant in the orthopaedic department of Liverpool Royal Infirmary and later as orthopaedic surgeon to Bristol Royal Infirmary, to the Winford Orthopaedic Hospital, to Tetbury Hospital and to Somerset Cricket Club. He was also an orthopaedic specialist for the Department of Health and Social Security and lecturer in orthopaedic surgery at Bristol University. He was the author of *Cerebral palsies of childhood in orthopaedic surgery*. He died before October 1996.