Trans-isthmic pars interarticularis screw fixation under CT and fluoroscopic guidance: technical success and clinical outcome in patients with symptomatic low-grade lumbar isthmic lysis. - Amoretti, Nicolas; Cervantes, Elodie; Stacoffe, Nicolas; Foti, Pauline; Litrico, Stephane; Kastler, Adrian (European Radiology, 2021)