Facet joints, or zygapophyseal joints, are true synovial joints in the spine that have been identified as potential pain generators. Medial branch blocks involve the injection of a local anesthetic ...

Last month we discussed that the higher level (L1-L2, L2-L3 and L3-L4) lumbar disc herniations present significantly different than the more common lower level (L4-L5 and L5-S1) lumbar disc ...

A 72 year-old man noted chronic low back pain, worse with standing and walking. With prolonged standing, he would develop pain and numbness radiating down the posterior thighs and calves. Lumbar ...

Axial MRI of the Lumbar Spine - T2 weighted image at the L4 level. On this view centered over the L4-L5 disk, one can see well the cauda equina surrounded by CSF (note that CSF is bright on ...

Tiger Woods announced Saturday that he has another surgery on his back. The 15-time major champion posted on social media that he underwent an L4-L5 disc replacement surgery on his lumbar spine. The ...