RESUMEN
OBJECTIVE@#To evaluate the application of surgical strategies for the treatment of cervical ossification of the posterior longitudinal ligament (OPLL) involving the C 2 segment.@*METHODS@#The literature about the surgery for cervical OPLL involving C 2 segment was reviewed, and the indications, advantages, and disadvantages of surgery were summarized.@*RESULTS@#For cervical OPLL involving the C 2 segments, laminectomy is suitable for patients with OPLL involving multiple segments, often combined with screw fixation, and has the advantages of adequate decompression and restoration of cervical curvature, with the disadvantages of loss of cervical fixed segmental mobility. Canal-expansive laminoplasty is suitable for patients with positive K-line and has the advantages of simple operation and preservation of cervical segmental mobility, and the disadvantages include progression of ossification, axial symptoms, and fracture of the portal axis. Dome-like laminoplasty is suitable for patients without kyphosis/cervical instability and with negative R-line, and can reduce the occurrence of axial symptoms, with the disadvantage of limited decompression. The Shelter technique is suitable for patients with single/double segments and canal encroachment >50% and allows for direct decompression, but is technically demanding and involves risk of dural tear and nerve injury. Double-dome laminoplasty is suitable for patients without kyphosis/cervical instability. Its advantages are the reduction of damage to the cervical semispinal muscles and attachment points and maintenance of cervical curvature, but there is progress in postoperative ossification.@*CONCLUSION@#OPLL involving the C 2 segment is a complex subtype of cervical OPLL, which is mainly treated through posterior surgery. However, the degree of spinal cord floatation is limited, and with the progress of ossification, the long-term effectiveness is poor. More research is needed to address the etiology of OPLL and to establish a systematic treatment strategy for cervical OPLL involving the C 2 segment.
Asunto(s)
Humanos , Ligamentos Longitudinales/cirugía , Osificación del Ligamento Longitudinal Posterior/cirugía , Resultado del Tratamiento , Osteogénesis , Descompresión Quirúrgica/métodos , Vértebras Cervicales/cirugía , Laminoplastia/métodos , Cifosis/cirugía , Estudios RetrospectivosRESUMEN
Ossification of the posterior longitudinal ligament (OPLL) is a rare cause of myelopathy in non-Oriental populations and relatively unrecognized by general practitioners. A case of an Afro-Brazilian 54-years-old woman presenting with tetraparesis due to cervical OPLL is presented. Emphasis is made for the inclusion of OPLL in the differential diagnosis of compressive cervical myelopathy.
Ossificação do ligamento longitudinal posterior (OLLP) é causa rara de mielopatia na população não Oriental e relativamente subdiagnosticada por clínicos gerais. Relata-se um caso de mulher de 54 anos descendência Afro-Brasileira com tetraparesia associada a OLLP cervical. Enfatiza-se a inclusão da OLLP como diagnóstico diferencial de mielopatia cervical compressiva.
Asunto(s)
Femenino , Humanos , Persona de Mediana Edad , Vértebras Cervicales , Osificación del Ligamento Longitudinal Posterior/complicaciones , Cuadriplejía/etiología , Compresión de la Médula Espinal/complicaciones , Diagnóstico Diferencial , Imagen por Resonancia Magnética , Osificación del Ligamento Longitudinal Posterior/diagnóstico , Osificación del Ligamento Longitudinal Posterior/cirugía , Cuadriplejía/diagnóstico , Cuadriplejía/cirugía , Compresión de la Médula Espinal/diagnóstico , Tomografía Computarizada por Rayos XRESUMEN
Ossificação do ligamento longitudinal posterior (OLLP) cervical é patologia rara em nosso meio que pode ser tratada por abordagem anterior ou posterior da coluna. Relatamos o caso de um homem japonês de 42 anos com paraparesia progressiva e TC e RM comprovando o diagnóstico de OLLLP, submetido a corpectomia anterior com artrodese. A fisiopatologia desta entesopatia, prevalência racial, quadro clínico, características radiológicas e opções do procedimento cirúrgico são revistos.
Asunto(s)
Adulto , Humanos , Masculino , Osificación del Ligamento Longitudinal Posterior/cirugía , Fusión Vertebral/métodos , Vértebras Cervicales , Espectroscopía de Resonancia Magnética , Osificación del Ligamento Longitudinal Posterior , Tomografía Computarizada por Rayos XRESUMEN
A ossificaçao do ligamento longitudinal posterior (OLLP) é causa incomum de mielopatia compressiva na populaçao caucasiana. É relatado o caso de um paciente do sexo masculino com um quadro de paraparesia espástica, cuja investigaçao radiológica mostrou OLLP. O raio-X de coluna cervical mostrou imagem laminar, vertical, com densidade óssea, posterior aos corpos vertebrais, que se estendia de C2 a T1. A tomografia computadorizada (TC) e a mielotomografia mostravam OLLP causando compressao medular ântero-posterior no seguimento descrito. Na ressonância magnética, observou-se área de hiperintensidade em T2 no segmento C7-T1, compatível com mielomalácia. O paciente foi submetido a laminoplastia tipo "open-door", com melhora do quadro parético dos membros inferiores. A OLLP deve entrar no diagnóstico diferencial das mielopatias cervicais, sendo facilmente diagnosticada através de radiografias e TC da coluna cervical. Sao revisados os aspectos clínicos e radiológicos e o tratamento da OLLP.