Spondylolysis
AnatomyDefect (break in continuity) of the vertebral pars interarticularis, most frequently at L5. Seen on the lumbar oblique projection as a fracture of the "Scottie dog's neck". It can be congenital, stress-related or traumatic.
Go beyond the definition
With Rad Index you study with flashcards, browse all 147 full projections and the ALARA checklist — even offline, on the ward.
