Dermatome mapping tends to be accurate but not all the time, though. Research into leg pain patterns from damaged L5 and S1 nerve roots used MRI to analyze spinal injuries and found 50% to 80% of ...

The lumbosacral joint, also called L5-S1, is a term used to describe a part of the spine. L5-S1 is the exact spot where the lumbar spine ends and the sacral spine begins. The lumbosacral joint ...

The tests were the straight leg raising test, and tests for motor muscle strength, dermatome sensory ... % CI 1.04–2.93) for L5, and 1.29 (95% CI 0.97–1.72) for S1 nerve root impingement.