More than a third of admitted patients at Robert Jones and Agnes Hunt Orthopaedic Hospital FT had to wait longer than 18 weeks to be treated.

The Shropshire-based trust treated 60 per cent of admitted patients within 18 weeks against a target of 90 per cent in March.

FT regulator Monitor has written to the hospital to highlight the concerns and has decided to replace the trust’s amber/green risk rating with an amber/red rating.

Referral to treatment waiting times are a prime Monitor target and the hospital has now agreed an action plan to turn around the situation by August 2012.

This follows a review by the NHS Intensive Support Team and a new access policy being in place from April.

The hospital board will now receive monthly updates on the situation with a project team in place to manage the recovery and keep Monitor regularly updated.

In a report to the trust board chief executive Wendy Farrington Chadd said: “Whilst this is disappointing we have responded promptly to the recommendations following the IST review and have a recovery trajectory agreed for this measure.

“Performance across other key measures including financial metrics, key quality indicators and efficiency has been positive and for the year overall we have demonstrated excellent performance across the trust. Considerable improvements in efficiency have been made and we continue to score highly in terms of patient satisfaction.”

In March the non admitted RTT was achieved with 98 per cent of patients seen in 18 weeks against a target of 95 per cent.