643 How the Straight Leg Raise and Crossed Straight Leg Raise Sign Influence Patient Reported Outcome Measures in Patients with a Lumbar Disc Herniation
Abstract Aim Low back pain (LBP) with associated lumbar radiculopathy is common. Clinical assessment utilises the straight leg raise (SLR) test and the more specific crossed straight leg raise (XSLR) test. Patient reported outcome measure (PROMs) scores can assess the contributary biopsychosocial factors to pain. Evidence shows links between radiculopathy and psychosocial issues, but little has assessed them in relation to clinical examination. The aim of this study was to assess the significance of the SLR and XSLR sign on PROMs in patients with an MRI-confirmed lumbar disc herniation. Method Patients with an MRI-confirmed lumbar disc herniation who presented with LBP and lumbar radiculopathy were identified. Collected data included the clinical examination outcome, level and side of disc prolapse, interventions and PROMs scores (VAS, ODI, EQ5D, GAD7, PHQ9). Statistical analysis was performed using SPSS. Results 216 patients were included in this study (mean age 50.4, 41% female, 59% male), 102 had negative straight leg raise (NSLR), 94 had positive SLR and 20 had both a positive SLR and positive XSLR. Patients with a positive clinical test on examination had ‘worse’ PROMs scores, with a positive XSLR sign associated with the ‘worst’ PROMs scores. For each PROM, t-test analysis reported a significant difference between the NSLR and SLR groups and NSLR and XSLR groups (P < .01). Conclusions PROMs scores indicating a lower health-related quality-of-life, increased levels of disability, pain, anxiety and depression and greater expectations are associated with a positive SLR or XSLR test.