Novel Hybrid Hydroxyapatite Spacers Ensure Sufficient Bone Bonding in Cervical Laminoplasty
Asian Spine Journal
;
: 1078-1084, 2018.
Artigo
em Inglês
| WPRIM
| ID: wpr-739294
ABSTRACT
STUDY DESIGN:
Prospective observational study.PURPOSE:
This prospective analysis aimed to evaluate the efficacy and bone-bonding rate of hybrid hydroxyapatite (HA) spacers in expansive laminoplasty. OVERVIEW OF LITERATURE Various types of spacers or plates have been developed for expansive laminoplasty.METHODS:
Expansive open-door laminoplasty was performed in 146 patients with cervical myelopathy; 450 hybrid HA spacers and 41 autogenous bone spacers harvested from the spinous processes were grafted into the opened side of each lamina. The patients were followed up using computed tomography (CT), and their bone-bonding rates for hybrid HA and autogenous spacers, bone-fusion rates of the hinges of the laminae, and complications associated with the implants were then examined.RESULTS:
Clinical symptoms significantly improved in all patients, and no major complications related to the procedure were noted. The hybrid HA spacers exhibited sufficient bone bonding on postoperative CT. The hinges completely fused in over 95% patients within 1 year of the procedure. Only 4 spacers (0.9%) developed lamina sinking, and most expanded laminae maintained their positions without sinking or floating throughout the follow-up period.CONCLUSIONS:
Hybrid HA spacers contributed to high bone-fusion rates of the spacers and hinges of the laminae, and no complications were associated with their use. Cervical laminoplasty with these spacers is safe and simple, and it yields sufficient fixation strength while ensuring sufficient bone bonding during the immediate postoperative period.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Período Pós-Operatório
/
Doenças da Medula Espinal
/
Vértebras Cervicais
/
Estudos Prospectivos
/
Seguimentos
/
Durapatita
/
Transplantes
/
Estudo Observacional
/
Laminoplastia
Tipo de estudo:
Estudo observacional
/
Estudo prognóstico
/
Fatores de risco
Limite:
Feminino
/
Humanos
Idioma:
Inglês
Revista:
Asian Spine Journal
Ano de publicação:
2018
Tipo de documento:
Artigo
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