Direct repair of spondylolysis using a new pedicle screw hook fixation: clinical and CT-assessed study: an analysis of 19 patients.

Objective: A prospective analysis of 19 consecutive cases of spondylolysis repair using a new hook screw device is presented. The objective of the study was to assess the clinical, radiologic, and computed tomography (CT) scan outcomes to establish the indications of isthmic repair in the treatment of spondylolysis.

Methods: Nineteen patients treated with a new segmental pedicle screw hook fixation were followed up for a minimum of 2 years (mean 30 months, range 24-48 months).