A condition of porous bones Osteoclasts out work osteoblasts
Rickets and Osteomalacia
Bone calcification fails Rickets – children Osteomalacia - adults
Herniated Disc
Ligaments of intervertebral discs become weak or injured, the surrounding fibrocartilage may rupture causing the material inside the disc to protrude and press on spinal nerves.
Spina Bifida
Laminae of the vertebrae do not unite at the midline which can allow the meninges or spinal cord to protrude from the spine.
Hip Fracture
Bunion
Deformity at the base of the big toe usually from wearing tight fitting shoes