Late Implant Failure in Cervical Disc Arthroplasty (M6-C, Spinal Kinetics) Causing Radiculopathy and Myelopathy. / Spätes Versagen einer zervikalen Bandscheibenprothese (M6-C, Spinal Kinetics) mit Radikulomyelopathie.
Z Orthop Unfall
; 160(2): 207-212, 2022 04.
Article
em En, De
| MEDLINE
| ID: mdl-33296944
ABSTRACT
Cervical disc arthroplasty (CDA) is an approved surgical treatment option in selected patients with cervical spinal disc degeneration. Even though CDA is a standard procedure since 20 years, there is a lack of information about long term performance. The published reoperation rates after CDA are low and comparable to anterior cervical fusion. The authors describe a severe failure and dysfunction with a partial core dislocation of a cervical prosthesis into the spinal canal (M6-C, Spinal Kinetics, Sunnyvale, CA, USA). Six years after implantation of a cTDR (cervical Total Disk Replacement) of the M6 type at C4/5 level, a 52 year-old women presented herself with new clinical signs of cervical myelopathy and radicular pain. Complete posterior dislocation of the central core of the implant into the spinal canal was identified as a cause. The failed device was removed completely and an ACCF (anterior cervical corpectomy and fusion) was performed. Intraoperatively, rupture of the posterior portion of the mesh tissue with posterior dislocation of the whole prosthesis core was detected. This is the second described case of a severe implant failure with core dislocation in this type of cTDR device. Even though there are thousands of successful implantations and middle term outcomes, it seems to be necessary to continue with long term radiological follow up to exclude similar failure in this type of prosthesis.
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Radiculopatia
/
Doenças da Medula Espinal
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Fusão Vertebral
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Degeneração do Disco Intervertebral
/
Substituição Total de Disco
Tipo de estudo:
Diagnostic_studies
/
Etiology_studies
/
Prognostic_studies
Limite:
Female
/
Humans
/
Middle aged
Idioma:
De
/
En
Revista:
Z Orthop Unfall
Assunto da revista:
ORTOPEDIA
/
TRAUMATOLOGIA
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Alemanha