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Subsidence of Cylindrical Cage (AMSLUTM Cage): Postoperative 1 Year Follow-up of the Cervical Anterior Interbody Fusion
Journal of Korean Neurosurgical Society ; : 367-370, 2007.
Artigo em Inglês | WPRIM | ID: wpr-105770
ABSTRACT

OBJECTIVE:

There are numerous reports on the primary stabilizing effects of the different cervical cages for cervical radiculopathy. But, little is known about the subsidence which may be clinical problem postoperatively. The goal of this study is to evaluate subsidence of cage and investigate the correlation between radiologic subsidence and clinical outcome.

METHODS:

To assess possible subsidence, the authors investigated clinical and radiological results of the onehundred patients who underwent anterior cervical fusion by using AMSLUTM cage during the period between January 2003 and June 2005. Preoperative and postoperative lateral radiographs were measured for height of intervertebral disc space where cages were placed. Intervertebral disc space was measured by dividing the sum of anterior, posterior, and midpoint interbody distance by 3. Follow-up time was 6 to 12 months. Subsidence was defined as any change in at least one of our parameters of at least 3 mm.

RESULTS:

Subsidence was found in 22 patients (22%). The mean value of subsidence was 2.21 mm, and mean subsidence rate was 22%. There were no cases of the clinical status deterioration during the follow-up period. No posterior or anterior migration was observed.

CONCLUSION:

The phenomenon of subsidence is seen in substantial number of patients. Nevertheless, clinical and radiological results of the surgery were favorable. An excessive subsidence may result in hardware failure. Endplate preservation may enables us to control subsidence and reduce the number of complications.
Assuntos

Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Radiculopatia / Seguimentos / Disco Intervertebral Tipo de estudo: Estudo observacional / Estudo prognóstico Limite: Humanos Idioma: Inglês Revista: Journal of Korean Neurosurgical Society Ano de publicação: 2007 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Radiculopatia / Seguimentos / Disco Intervertebral Tipo de estudo: Estudo observacional / Estudo prognóstico Limite: Humanos Idioma: Inglês Revista: Journal of Korean Neurosurgical Society Ano de publicação: 2007 Tipo de documento: Artigo