MR imaging for early complications of transpedicular screw fixation

Çolak, Ahmėt; Kutlay, Murat; Demircan, Nusret; Seçer, Halil İbrahim; Kıbıcı, Kenan; Başekim, C. Çınar

doi:10.1007/s005860050146

Cited by 5 publications

(3 citation statements)

References 17 publications

(21 reference statements)

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“…En estas complicaciones precoces de la fijación transpedicular, sobre todo las lesiones neurológicas por una posible malposición, conllevan la necesaria realización de un estudio de imagen, empezando por una Rx simple, la cual nos aporta poca información. Es necesaria la realización de una TAC de la zona de la instrumentación o una resonancia magnética (RM), sobre todo en secuencias T1, que es donde se observan menos artefactos producidos por el titanio de la fijación 9 .…”

Section: Discussionunclassified

Causas de reintervención quirúrgica en pacientes con fijación lumbar intervenidos por estenosis de canal

et al. 2006

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ResumenObjetivo. En el presente trabajo analizamos las causas por las que se ha debido reintervenir a pacientes diagnosticados de estenosis de canal que habían sido tratados mediante descompresión quirúrgica y fijación lumbar.Material y métodos. Seleccionamos 74 pacientes entre enero de 1996 y diciembre de 2000 con un seguimiento mínimo de 4 años.Resultados. 16 (21,1%) fueron sometidos a una nueva intervención quirúrgica. La principal causa fue la estenosis de niveles adyacentes superiores a la instrumentación (en el 50%). Otras causas fueron la fibrosis perirradicular, la persistencia de estenosis tras la cirugía, el dolor neuropático, la desconexión del sistema de fijación, la compresión radicular por tornillos transpediculares y la rotura de tornillos.Conclusiones. Las complicaciones relacionadas con la técnica quirúrgica son bajas ya que la mitad de las reintervenciones en pacientes con estenosis del canal lumbar está producida por la estenosis del segmento superior a la fijación.PALABRAS CLAVE: Estenosis lumbar. Instrumentación. Reintervención. Estenosis del nivel superior. Causes of reoperations in patients with lumbar spinal stenosis treated with instrumentations SummaryObjective. In present study we analyzes the causes leading to reoperation patients treated for lumbar spinal stenosis with laminectomy and lumbar instrumentation.Material and methods. 74 patients operated between January of 1996 and December of 2000 with a minimum 4 year follow-up were seleted for the study. Results. 16 patients (21 1%) underwent a new surgical intervention. The main cause for reoperation was stenosis of the adjacent level superiorly to the instrumentation (in 50%). Other causes were radicular fibrosis, persistence of stenosis after the surgery, neuropatic pain, failure of the instrumentation system, transpedicular screws misplacement and break of screws.Conclusions. Complications related with the initial surgical procedure are low, as half of the reoperations were due to stenosis of the segment superior to the fixation.

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Section: Discussionunclassified

Causas de reintervención quirúrgica en pacientes con fijación lumbar intervenidos por estenosis de canal

et al. 2006

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“…Metal internal fixation may cause artifacts that lead to image distortion. Recently, use of new materials, such as titanium alloy and advances in MRI technique have, to some extent, solved the problem [19,20] . In our series, titanium alloy was used in all the cases.…”

Section: Internal Fixation Failurementioning

confidence: 99%

MRI manifestations and differentiated diagnosis of postoperative spinal complications

Yang

Wang

Luo

et al. 2009

J. Huazhong Univ. Sci. Technol. [Med. Sci.]

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To analyze MR manifestations of postoperative spinal complications and investigate the value of MRI in the diagnosis and differentiated diagnosis, 114 cases of spinal postoperative complications were analyzed retrospectively and compared with the clinical data. The results showed that the main postoperative spinal complications included spinal stenosis (n=33, consisting of 21 cases of epidural fibrosis and 12 cases of epidural hematoma or epidural abscess), lack of spinal stability (n=43), infection (n=23, consisting of 7 cases of para-spinal soft-tissue infection, 5 cases of vertebral discitis, 4 cases of vertebral and appendix infection, 3 cases of epidural abscess, 2 cases of myelitis, 2 cases of spinal arachnoiditis), others (n=28, consisting of 12 cases of inner fixation failure, 9 cases of epidural hematoma, 7 cases of cerebrospinal fluid gusher). It is concluded that MRI can specifically display all kinds of postoperative spinal complications, and is of significant value in the diagnosis and differentiated diagnosis of postoperative spinal complications.

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“…Fast spin-echo imaging is preferred over routine spin-echo imaging when orthopedic hardware is present. 4,6,16 Short interecho spacing has been shown to be the primary factor responsible for reducing the effects of field inhomogeneities. 6,17 Tartaglino et al demonstrated that decreased interecho spacing was the primary factor responsible for decreasing metallic susceptibility artifact in patients status post-cervical spine surgery.…”

Section: Technical Considerationsmentioning

confidence: 99%

MR Imaging of Joint Arthroplasty

Sofka

Potter²

2002

Semin Musculoskelet Radiol

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Imaging evaluation of the painful total joint arthroplasty has, in the past, been limited to conventional radiographs, arthrography, and nuclear scintigraphy. All three modalities provide some clinical information regarding the status of the prosthesis, adjacent bone, and surrounding soft tissues but are hampered by poor specificity, particularly nuclear scintigraphy. Magnetic resonance imaging, using optimized pulse sequences to reduce the susceptibility artifact generated by the arthroplasty, can provide clinically relevant information regarding the prosthesis as well as the surrounding bone, soft tissues, and neurovascular structures.

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MR imaging for early complications of transpedicular screw fixation

Cited by 5 publications

References 17 publications

Causas de reintervención quirúrgica en pacientes con fijación lumbar intervenidos por estenosis de canal

Causas de reintervención quirúrgica en pacientes con fijación lumbar intervenidos por estenosis de canal

MRI manifestations and differentiated diagnosis of postoperative spinal complications

MR Imaging of Joint Arthroplasty

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