The total of both variances equals the total direct materials variance. To apply this method to the Band Book example, take a look at the next diagram. Start at the bottom. Direct materials actually cost $297,000, even though the standard cost of the direct materials is only $289,800.
These factors can all reduce the space around a nerve root in the lower back, interfering with nerve function. Symptoms of sciatica may include pain, weakness, numbness or tingling in the low back, buttocks, posterior thighs, legs and feet. Symptoms often occur only on one side of the body.
Sciatica is pain along the sciatic nerve. It usually results from compression of nerve roots in the lower back. Common causes include intervertebral disk herniation, osteophytes, and narrowing of the spinal canal (spinal stenosis). Symptoms include pain radiating from the buttocks down the leg. Diagnosis sometimes involves MRI or CT. Electromyography and nerve conduction studies can identify the affected level.