Medically reviewed by Jennifer Steinhoff, MD Key Takeaways The lumbar spine includes five vertebrae that help with mobility and stability.Lumbar vertebrae are larger because they carry the load from ...

Sacralization is a condition where the base of your spine has fused to the top of your pelvis. Your bottom vertebra is called the L5 lumbar vertebra. It’s joined to your sacrum, the upper ridge of ...

Spinal stenosis is a back condition that may cause difficulty walking. Exercises, stretches, and lifestyle changes may improve lower back strength and posture to help manage the condition. Spinal ...