What of an operation that is so diffi cult it requires a surgeon of special skill: would there be negligence if such a surgeon were not used, and, if so, would this be of the health authority...

What of an operation that is so diffi cult it requires a surgeon of special skill: would there be negligence if such a surgeon were not used, and, if so, would this be of the health authority (relative to its primary duty of care), or of the ‘ordinary’surgeon who operated?