R (by her litigation friend) v Royal National Orthopaedic Hospital NHS Trust [2012] EWHC 492 (QB), [2012] All ER (D) 38 (May)
In most cases, the fact that distinguished experts in the field were of a particular opinion would demonstrate the reasonableness of the opinion. The true nature of the duty owed by a doctor was to take reasonable care of the patient in the course of an operation as a whole.