38-213
El tornillo expansivo a nivel sacro. Nuestra experiencia
The expansive screw at sacrum level. Our experience
G.J. RIPOLL ESTEL, J.M. FEMENIAS ROSSELLO, M. RUBÍ JAUME UNIDAD DE RAQUIS. SERVICIO TRAUMATOLOGÍA Y CIRUGÍA ORTOPÉDICA. HOSPITAL UNIVERSITARIO SON DURETA. PALMA DE MALLORCA
Recepción:
15/09/2008
Aceptación:
15/09/2008
Publicación:
15/09/2008
Métricas
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Resumen (ES)
A clinical and radiological study on 68 patients,
operated between May 1996 and June 1999. The Omega 21
spinal fixation system was employed, using the expandable
screw as a sacrum anchor. The objective was to evaluate the
efficacy and safety of the aforementioned implant. It was
used in 43 cases of discopathy at L5/S1, 12 cases of channel
stenosis at S1, 9 cases of spondylitis/listesis, 3 cases of post
surgical fibrosis of the vertebral segment L5/S1 and one case
of vertebral fracture. Compared to other conventional sacrum
fixation systems, the clinical results are similar, since the
good medium to long term stabilisation results are due to the
arthrodesis which we systematically perform by means of the
biological addition of autologous bone taken from the iliac
crest. In the radiological revision there have been no cases of
breaking or loosening of the expandable screws. We can conclude
that the anchoring strength of the expandable screw
does not diminish, nor does its ability to bear axial load compared
to non-expandable screws. In addition it helps to restore
the spread the load, like in physiological circumstances.
They may be considered of great use in sacrum anchoring.
operated between May 1996 and June 1999. The Omega 21
spinal fixation system was employed, using the expandable
screw as a sacrum anchor. The objective was to evaluate the
efficacy and safety of the aforementioned implant. It was
used in 43 cases of discopathy at L5/S1, 12 cases of channel
stenosis at S1, 9 cases of spondylitis/listesis, 3 cases of post
surgical fibrosis of the vertebral segment L5/S1 and one case
of vertebral fracture. Compared to other conventional sacrum
fixation systems, the clinical results are similar, since the
good medium to long term stabilisation results are due to the
arthrodesis which we systematically perform by means of the
biological addition of autologous bone taken from the iliac
crest. In the radiological revision there have been no cases of
breaking or loosening of the expandable screws. We can conclude
that the anchoring strength of the expandable screw
does not diminish, nor does its ability to bear axial load compared
to non-expandable screws. In addition it helps to restore
the spread the load, like in physiological circumstances.
They may be considered of great use in sacrum anchoring.
Palabras clave (ES):
Lumbar
Raquis
Columna
Fijación
Espondiloartrosis
Artrosis
Sacro
Lumbosacra
Tornillo
Expansivo
Artrodesis
Tratamiento
quirúrgico
Resumen (EN)
A clinical and radiological study on 68 patients,
operated between May 1996 and June 1999. The Omega 21
spinal fixation system was employed, using the expandable
screw as a sacrum anchor. The objective was to evaluate the
efficacy and safety of the aforementioned implant. It was
used in 43 cases of discopathy at L5/S1, 12 cases of channel
stenosis at S1, 9 cases of spondylitis/listesis, 3 cases of post
surgical fibrosis of the vertebral segment L5/S1 and one case
of vertebral fracture. Compared to other conventional sacrum
fixation systems, the clinical results are similar, since the
good medium to long term stabilisation results are due to the
arthrodesis which we systematically perform by means of the
biological addition of autologous bone taken from the iliac
crest. In the radiological revision there have been no cases of
breaking or loosening of the expandable screws. We can conclude
that the anchoring strength of the expandable screw
does not diminish, nor does its ability to bear axial load compared
to non-expandable screws. In addition it helps to restore
the spread the load, like in physiological circumstances.
They may be considered of great use in sacrum anchoring.
operated between May 1996 and June 1999. The Omega 21
spinal fixation system was employed, using the expandable
screw as a sacrum anchor. The objective was to evaluate the
efficacy and safety of the aforementioned implant. It was
used in 43 cases of discopathy at L5/S1, 12 cases of channel
stenosis at S1, 9 cases of spondylitis/listesis, 3 cases of post
surgical fibrosis of the vertebral segment L5/S1 and one case
of vertebral fracture. Compared to other conventional sacrum
fixation systems, the clinical results are similar, since the
good medium to long term stabilisation results are due to the
arthrodesis which we systematically perform by means of the
biological addition of autologous bone taken from the iliac
crest. In the radiological revision there have been no cases of
breaking or loosening of the expandable screws. We can conclude
that the anchoring strength of the expandable screw
does not diminish, nor does its ability to bear axial load compared
to non-expandable screws. In addition it helps to restore
the spread the load, like in physiological circumstances.
They may be considered of great use in sacrum anchoring.
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