Long-Term Changes in Vertebral Morphology After Cervical Spinal Fusion in Adolescent Pediatric Patients: Retrospective Case Series with up to a Minimum 12 Years of Follow-up.

作者: Yuichiro Abe , Katsuhisa Yamada , Kuniyoshi Abumi , Norimasa Iwasaki , Hideki Sudo

DOI: 10.1016/J.WNEU.2018.10.136

关键词: Cervical kyphosisBone remodelingReduction (orthopedic surgery)KyphosisRadiographyStress shieldingMedicineBone graftingSurgerySpinal fusion

摘要: Objective The mechanical alteration in the adolescent/pediatric cervical spine after spinal fusion remains unknown. purpose of this study was to investigate morphologic changes patients who underwent fusion. Methods Ten (9–18 years) were included. anteroposterior diameter (AP-D) vertebral body evaluated using lateral radiographs. AP-D ratio defined as at final follow-up postoperative value. kyphosis angles fused level and (C2–C7) also measured. Results mean period 20.0 years (range, 12–40 years). reduced 4 increased or remained unchanged 6 patients. reduction usually seen middle levels remarkable correction posterior instrumentation combined with anterior significantly correlated segments (P = 0.029) angle 0.016). Conclusions Cervical endplate destruction by bone grafting is a risk factor for atrophic Endplate instrumentation-induced stress shielding could alter remodeling.

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