PA Sport - Tue, 02 Mar 10:56:00 2010
Shaw (pictured) saw a specialist on Monday and the results of the review and a scan of his left a/c joint will be discussed by the England and Wasps medical team on Tuesday.
The England management confirmed that full-back Delon Armitage suffered rib cartilage damage early in the second half but there is no immediate timescale for his return either.
Both players have an extra week to recover with the Six Nations taking a week's break. England's next match is against Scotland at Murrayfield on March 13.
With Shaw and Armitage sidelined, Leicester lock Louis Deacon and Northampton full-back Ben Foden will join England's training camp at Pennyhill Park on Tuesday afternoon.
Both players came off the bench in the 20-16 defeat to Ireland and would be next in line for a start in their respective positions.
England manager Martin Johnson is keeping his starting XV plus Deacon, Foden and Bath tight-head prop David Wilson in camp this week.
The rest of the bench from Saturday's game and the 10 elite squad members who were not involved against Ireland will remain with their clubs and are available for Guinness Premiership action at the weekend.