Screws versus hooks: implant cost and deformity correction in adolescent idiopathic scoliosis
Journal of Children's Orthopaedics, 04/30/2012
Jaquith BP et al. – Pedicle screw instrumentation was shown to be more expensive overall, per fused level, and per degree of correction. Also, more implants were used and more levels were fused in the pedicle screw group than in the hook–hybrid group. Pedicle screws showed a statistically significantly greater percentage of correction of the major curve. Physicians must evaluate each patient individually and determine if the increased percentage of correction warrants the increased cost for pedicle screw constructs.