Grading method of spondylolisthesis

Grading method of spondylolisthesis

When spondylolysis involves the bilateral pars interarticularis at a particular vertebral level, it is commonly associated with a condition called spondylolisthesis, which is anterior translation of the involved vertebral body with respect to the more inferiorly located adjacent vertebral body. It is graded I through IV, based on the degree of anterior displacement. If it is displaced anteriorly less than 25% of the vertebral body’s anteroposterior dimension, it is considered to be grade I. Displacements of 25% to 50%, 50% to 75%, and greater than 75% constitute grades II, III, and IV, respectively. Its etiology can be congenital, traumatic, degenerative, or pathologic in nature such as from Paget’s disease or osteogenesis imperfecta.


Sign up to receive the trending updates and tons of Health Tips

Join SeekhealthZ and never miss the latest health information