The third outcome variable was the sensory and motor status, directed to the lumbar 2 to sacral one dermatome and myotome. Sensory had three categories, intact, impaired, and diminished, and the motor score was determined by the universal system of Oxford muscle grading (0–5). The fourth was the straight leg raise (SLR) test, ranging from positive and negative. Any provocation of leg radicular symptoms within 75 degrees is considered positive.25 (link) The fifth outcome variables were the equine cauda syndrome (CES) as the red flag signs of lumbar radiculopathy diagnosed according to NICE guideline.26 (link) The presence of any one symptom of CES was considered positive. All outcomes were documented for baseline, discharge, and follow-up, and MRI changes were recorded at baseline and follow-up.