Related Experiment Videos
Prognostic value of MRI findings in sciatica
P C A J Vroomen1, J T Wilmink, Krom M C T F M de
1Department of Neurology, Maastricht University Hospital, The Netherlands.
Abstract:
The natural course of sciatica due to disc herniation is generally favourable but individually unpredictable. Some patients recover only after prolonged conservative therapy or surgery. This study aims to ascertain whether magnetic resonance (MR) imaging features can be used to predict outcome of sciatica and help to identify patients unlikely to respond to conservative management. For a transversal diagnostic study 274 primary care patients underwent early MR imaging for leg pain. One hundred and thirty-three patients with sciatica were followed for 3 months, both patients and physicians being unaware of MR imaging findings. At 12 weeks a favourable prognosis was indicated by the following features: annular rupture (P= 0.02) and nerve root compression on MR imaging (P = 0.03). Poor prognosis was indicated by disc herniation in the foramen (P = 0.004). Our findings show that early MR imaging features are related to prognosis. However, the associations are not strong enough to justify routine use of early MR imaging to predict the prognosis of sciatica.
Insights
Magnetic resonance (MR) imaging features can indicate sciatica prognosis in leg pain patients. However, findings like annular rupture and nerve root compression are not strong enough for routine early MR use.
Area of Science:
- Neurology
- Radiology
- Orthopedics
Background:
- Sciatica from disc herniation typically resolves but recovery is unpredictable.
- Some patients require extensive conservative therapy or surgery for symptom relief.
Purpose of the Study:
- To determine if magnetic resonance (MR) imaging can predict sciatica outcomes.
- To identify patients unlikely to respond to conservative management using early MR imaging.
Main Methods:
- A transversal diagnostic study included 274 primary care patients with leg pain undergoing early MR imaging.
- One hundred thirty-three sciatica patients were followed for 3 months, blinded to MR findings.
Main Results:
- Favorable prognosis at 12 weeks was associated with annular rupture (P=0.02) and nerve root compression (P=0.03) on MR imaging.
- Poor prognosis was indicated by disc herniation in the foramen (P=0.004).
Conclusions:
- Early MR imaging features correlate with sciatica prognosis.
- The associations are insufficient to warrant routine early MR imaging for predicting sciatica prognosis.