Greeting from New Zealand. I was diagnosed with Lumbar Spinal Stenosis in 2011. I was getting pain when walking, legs going numb and having to reach for my toes to relieve. I had a cortisone injection which lasted about 4 months and gave me relief. I am now at the stage of being woken up with the pain, in my hips, legs and under my knee caps!!! Does anyone else get any pain under their knee caps...it really hurts. I will approach my Doctor about getting another injection shortly and night time pain relief, one that will last for longer than 4 hours!