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Query: UMLS:C0003090 (arthrodesis)
 8,374 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The paper present the results of surgical treatment of 15 patients (11 males and 4 females--average age 35.3 years) with thoraco-lumbar spine fractures. Pre-op neurological disorders were found in 4 patients with narrowing of the spinal canal, including 1 case of paraplegia. The decrease of vertebrae height was on average 45%. All patients underwent surgical treatment with transpedicular fixation by means of USS (Universal Spine System). In 7 patients 4 vertebrae were instrumented, the rest of the patients had only 3 vertebrae instrumented. In this latter case arthrodesis was not performed. Post-op, the neurological symptoms receded completely in 3 patients and partially in the case with paraplegia. In 76% of the cases vertebra height was restored completely. Patients were allowed to stand on the 3-4 day post-op. Follow-up was 22 months, and the neurological status of the patients was stabile. No decrease in vertebra height was noticed.
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PMID:[The USS (Universal Spine System) in the treatment of thoraco-lumbar spine fractures]. 1187 82

The surgical management of thoracolumbar fractures presents potential benefits. However, the surgery solve the instability by fusion of mobile segments. We incorporate in our treatment algorithms, the use of restricted arthrodesis at injured levels, regardless of longer instrumentations, as well as the use of non-fused transitory stabilizations, based on the conviction that in non-fused segments without traumatic disc injury, mobility persists once the instrumentation is removed. The goals of this study were to compare the mobility of non-fused segments after hardware removal to a normal range of motion and to find prognostic pre-op imaging patterns. We reviewed 21 consecutive patients who underwent surgery with preservation of mobile segments (non-fused segments included in the construction) in order to recover mobility after removal of instrumentation, performed between 1995 and 2001. All patients were treated by indirect reduction with posterior transpedicular instrumentation. Clinical and radiological outcome was analyzed after an average follow-up of 46.6 months. Satisfactory subjective outcome results were obtained in 94.7%. The dynamic radiological follow-up study showed 75% (21 segments) with normal or decreased range of motion (ROM) and 25% (7 segments) without mobility. The non-fused segments with hardware removal before 10 months of evolution presented a normal or decreased mobility in 83.2% while the segments with hardware removal after 10 months showed 68.8% of mobility. The intervertebral disc (IVD)'s with normal initial MRI morphology preserved their mobility in 81.9%. Complications occurred in four patients: two superficial wound infections and two patients presented a late fracture of one USS Schanz. The results of this study prove that in thoracolumbar fractures, non-fused spinal segments included in pedicular instrumentation maintained mobility in a high percentage once the hardware is removed. 75% of the segments presented a normal or decreased ROM.
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PMID:Residual mobility of instrumented and non-fused segments in thoracolumbar spine fractures. 1660 74