title: Clinical and CT scan evaluation after direct defect repair in spondylolysis using segmental pedicular screw hook fixation.
abstract: Direct defect repair using segmental pedicular screw hook fixation was carried out in nine patients with spondylolysis and a mean age of 24.2 years. One patient was fused 3 years after isthmic reconstruction. In the remaining eight patients, after a mean follow-up of 41 months (range, 12-78), three self-evaluation scales revealed a significant (p < 0.05) improvement in clinical status. Computed tomography scans were carried out in seven patients. There was bilateral bony union in two cases, in three pars healing was unilateral, and in two the isthmic defect persisted bilaterally. No correlation was observed between the status of the pars and follow-up. We conclude that repair of defects in spondylolysis may result in a favorable clinical outcome even when anatomic reconstruction of pars interarticularis is not successful.
authors.affiliation: Unitat d'Estudi de la Patologia del Raquis, Hospital de Traumatologia i Rehabilitació, Barcelona, Spain.
authors.forename: F
authors.initials: F
authors.lastname: Pellisé
authors.forename: J
authors.initials: J
authors.lastname: Toribio
authors.forename: A
authors.initials: A
authors.lastname: Rivas
authors.forename: C
authors.initials: C
authors.lastname: García-Gontecha
authors.forename: J
authors.initials: J
authors.lastname: Bagó
authors.forename: C
authors.initials: C
authors.lastname: Villanueva
mesh_terms: D000293:Adolescent; D000328:Adult; D001863:Bone Screws; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging / Q000601:surgery; D008297:Male; D013169:Spondylolysis / Q000000981:diagnostic imaging* / Q000601:surgery; D014057:Tomography, X-Ray Computed