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Research

IS MRI SCAN FOR LOWER BACK PAIN BASED ON PRE-CLINICAL ASSESSMENT THE WAY FORWARD?

The Society for Back Pain Research (SBPR) Annual General Meeting 2012



Abstract

Purpose and background

Whether to order an MRI scan or not for patients with low back and leg pain (LBP). Resources are limited. Waiting for diagnostic imaging impacts time to treatment and may be critical to the “18 week target”. We have looked into devising a system in which we can ordered MRI scans for patients with LBP pre-clinical assessment based on questionnaire and accessing their referral letter.

Methods and results

49 patient's referrals were looked into (randomly picked). 23 had a questionnaire filled by either themselves or their GPs. the rests had MRI scans ordered based on their referral letters. MRI scans were requested pre-clinical assessment for patients with symptoms spreading beyond their knees and willing to consider interventional treatments (injections or operations). We considered MRI positive if the report mentioned stenosis or disc prolapse causing nerve root or cauda compression.

7 out of the 23 fitted the criteria for MRI. 6 (85%) of them had positive results. 26 of the GP referrals letters had MRI out of those 16 (61%) had positive results.

In total out of 33 MRI, 22 (66.7%) were positive.

Conclusion

Our study showed that pre-clinic MRI scanning for patients with LBP is an effective method to find surgically treatable pathology. Using the questionnaire was more advantageous than the referral letter in order to identify patients who would benefit from pre-clinic MRI scanning. With the small numbers this is not statistically significant. We propose that rather than a blanket scanning, it would be reasonable to scan patients based on their referral letter.

No Conflict of interest

No funding obtained

This abstract has not been previously published in whole or substantial part nor has it been presented previously at a national meeting.