1/328. Complete upper airway obstruction during awake fibreoptic intubation in patients with unstable cervical spine fractures.PURPOSE: To describe the presentation and management of complete upper airway obstruction with life threatening arterial oxygen desaturation that occurred during attempted awake fibreoptic intubation in two patients presenting with unstable C-spine injury. CLINICAL FEATURE: Complete upper airway obstruction occurred during awake fibreoptic intubation of two men (ASA II; 68 & 55 yr old) presenting with unstable C-spine fractures. In both cases, bag and mask ventilation with CPAP failed to relieve the progressive hypoxemia. A surgical airway was established urgently to oxygenate the two patients who were suffering progressive life-threatening oxygen desaturation. One patient had trans-cricothyroid jet ventilation performed through a 16G intravenous cannula prior to an urgent tracheostomy. In the other patient, an emergency tracheostomy was inserted. Interestingly, both patients had been sedated in the Neurosurgical intensive care Unit with morphine and benzodiazepines before their scheduled surgeries. The most likely etiology for the complete upper airway obstruction was laryngospasm due to inadequate topicalization of the airway and additional sedation given in the operating room. Neither patients suffered any new neurological deficits following these events. They went on to have uneventful surgeries. CONCLUSION: This case report suggest that prior to awake fibreoptic intubation, oxygenation, adequate topicalization with testing to verify the lack of pharyngeal and laryngeal responses and careful assessment of sedation levels in the operating room are prudent for a safe endoscopic intubation.- - - - - - - - - - ranking = 1keywords = injury (Clic here for more details about this article) |
2/328. Detection of vertebral artery injury after cervical spine trauma using magnetic resonance angiography.BACKGROUND: We prospectively describe the incidence, magnetic resonance-based diagnosis, and treatment of vertebral artery (VA) injury resulting from closed cervical spine trauma. methods: patients with fracture or dislocation on plain radiographic studies underwent computed tomography. Among these patients, the subset with computed tomographic evidence of foramen transversarium (FT) fracture underwent magnetic resonance angiography as early as possible. RESULTS: During a 16-month period, 38 patients with closed cervical trauma were treated. Twelve patients demonstrated fracture extension through at least one FT by computed tomography. Among these patients, four showed unilateral VA injury by magnetic resonance angiography, all ipsilateral to the fractured FT. Three cases of VA occlusion and one of focal narrowing were demonstrated. All four patients were initially treated with aspirin, and two were systemically anticoagulated. None developed irreversible neurologic deficits from the VA compromise. CONCLUSION: Our data suggest that the incidence of VA injury in closed cervical spine trauma is significant and that FT fractures warrant flow-sensitive magnetic resonance imaging.- - - - - - - - - - ranking = 7keywords = injury (Clic here for more details about this article) |
3/328. Adjacent fracture-dislocations of the lumbosacral spine: case report.OBJECTIVE AND IMPORTANCE: Traumatic fracture-dislocations of the lumbosacral junction are rare, with all previously reported cases involving fracture-dislocations at a single level. No cases of multiple fracture-dislocations of contiguous spinal segments in the lumbosacral spine have been reported. A case of traumatic adjacent fracture-dislocations of the fifth lumbar segment is presented. CLINICAL PRESENTATION: An 18-year-old male patient sustained open lumbar spinal trauma after a motor vehicle accident. A neurological examination revealed an L4 level. Radiographic evaluation of the spine revealed a three-column injury at L5 with spondyloptosis of the L5 vertebral body. Aorto-ilio-femoral angiography revealed no evidence of vascular injury. INTERVENTION: The patient was treated with a combined anterior and posterior approach in a two-stage operation. Six months postoperatively, he was neurologically unchanged; however, he was able to walk with the aid of a cane. Plain films revealed normal alignment of the lumbosacral spine. CONCLUSION: The management of traumatic lumbosacral fracture-dislocations requires careful consideration of retroperitoneal structures and possible exploration of the iliac vessels in addition to spinal reconstruction.- - - - - - - - - - ranking = 2keywords = injury (Clic here for more details about this article) |
4/328. Bisegmental rotational fracture dislocation of the pediatric cervical spine. A case report.STUDY DESIGN: A case of a bisegmental rotational fracture dislocation in the pediatric cervical spine is presented. OBJECTIVES: To highlight the problems in the diagnostics and surgical management of this rare type of injury. SUMMARY OF BACKGROUND DATA: Fractures of the cervical spine are relatively uncommon in childhood. To the authors' knowledge, this is the first reported case of a bisegmental rotational fracture dislocation in the pediatric cervical spine managed by a combined anteroposterior approach. methods: A 6-year-old girl was hit by a car as a pedestrian. In addition to an open fracture dislocation of the Lisfranc joint in the right foot, she sustained a bisegmental fracture dislocation at the lower cervical spine (C3-C5) with no neurologic deficit. The complete diagnosis of a locked rotational fracture dislocation could be established only by using computed tomography scans with three-dimensional reconstructions. The injury was managed with a combined anteroposterior open reduction and a bisegmental anterior fusion. RESULTS: Implant removal was performed after bony fusion 6 months after surgery. At follow-up assessment 2.5 years later, the girl had a good radiologic result and a full and pain-free functional recovery. CONCLUSIONS: Bisegmental rotational fracture dislocations in pediatric cervical spines are not easily diagnosed and may require three-dimensional computed tomography scan reconstructions for complete assessment. In such rare cases, a combined anteroposterior surgical procedure may be indicated, with a bisegmental anterior fusion providing a good functional result.- - - - - - - - - - ranking = 2keywords = injury (Clic here for more details about this article) |
5/328. Entrapment and obstruction of the esophagus from thoracic spine hyperextension-dislocation injury.We have reported a unique case of esophageal entrapment and obstruction from a thoracic spine hyperextension-dislocation injury after a motor vehicle crash. Because the risk for esophageal injury is not typically associated with thoracic spine injury, a heightened sensitivity for developing symptoms and signs is at least necessary. As with any injury to the gastrointestinal tract, optimal therapy requires resuscitation and prompt operative intervention.- - - - - - - - - - ranking = 8keywords = injury (Clic here for more details about this article) |
6/328. Neurologic compromise after an isolated laminar fracture of the cervical spine.STUDY DESIGN: Report of a rare fracture of the cervical spine. OBJECTIVES: To illustrate the importance of the cervical spinolaminar line in the diagnosis of this unusual injury and to comment on appropriate investigations, management, and outcome. SUMMARY OF BACKGROUND DATA: Laminar fractures of the cervical spine are uncommon and are often missed. They usually occur after a hyperextension injury. It is unusual for these injuries to cause neurologic compromise. The injury reported here differs in that it was a result of direct trauma to the posterior aspect of the neck, and there was a significant neurologic deficit. methods: The clinical findings, roentgenographic appearance, treatment, complications, and follow-up assessment are presented and discussed. RESULTS: Initial neurologic examination revealed a right hemiparesis. Radiographs showed disruption of the spinolaminar line at C5 and a computed tomography scan revealed a fracture of the lamina of C5 with spinal canal encroachment. Management included high-dose corticosteroid administration and a posterior spinal decompression. The patient's initial postoperative course was complicated by acute pulmonary edema, which responded well to intravenous furosemide and ventilation. Follow-up assessment showed significant neurologic improvement. CONCLUSIONS: The satisfactory outcome in the case of this rare injury was the result of a prompt, accurate diagnosis and appropriate management.- - - - - - - - - - ranking = 4keywords = injury (Clic here for more details about this article) |
7/328. Posterior C1-C2 transarticular screw fixation in the treatment of displaced type II odontoid fractures in the geriatric population--review of seven cases.BACKGROUND: Seven geriatric patients presented with displaced Type II odontoid fractures. All patients underwent a posterior C1-C2 transarticular fixation between November 1994 and December 1996. Ages ranged between 63 and 88 years. methods: Fractures were treated with placement of bilateral transarticular screws, allowing immediate fixation, except in one patient, for whom only a unilateral screw was used. An autograft interspinous strut was also placed, allowing three-point fixation. Mean follow-up was 10.6 months. RESULTS: Six patients received rigid fixation and developed a stable union. One patient died before any follow-up could be obtained. Two other patients died within 1 year of unrelated causes. The remaining four patients remain active and independent. One intraoperative vertebral artery injury was identified. No clinical sequalae were noted. CONCLUSION: Posterior transarticular screw fixation is a reasonable option in treating these controversial fractures. Seven geriatric patients tolerated this surgery well, and were mobilized early, avoiding complications related to external immobilization.- - - - - - - - - - ranking = 1keywords = injury (Clic here for more details about this article) |
8/328. Spinal instrumentation for unstable C1-2 injury.Seventeen patients with unstable C1-2 injuries were treated between 1990 and 1997. Various methods of instrumentation surgery were performed in 16 patients, excluding a case of atlantoaxial rotatory fixation. Posterior stabilization was carried out in 14 cases using Halifax interlaminar clamp, Sof'wire or Danek cable, or more recently, transarticular screws. Transodontoid anterior screw fixation was performed in four cases of odontoid process fractures, with posterior instrumentation in two cases because of malunion. Rigid internal fixation by instrumentation surgery for the unstable C1-2 injury avoids long-term application of a Halo brace and facilitates early rehabilitation. However, the procedure is technically demanding with the risk of neural and vascular injuries, particularly with posterior screw fixation. Sagittal reconstruction of thin-sliced computed tomography scans at the C1-2 region, neuronavigator, and intraoperative fluoroscopy are essential to allow preoperative surgical planning and intraoperative guidance.- - - - - - - - - - ranking = 5keywords = injury (Clic here for more details about this article) |
9/328. Laminar and arch fractures with dural tear and nerve root entrapment in patients operated upon for thoracic and lumbar spine injuries.OBJECTIVE: To determine the neurological outcome in patients with laminar fractures associated with dural tears and nerve root entrapment, operated upon for thoracic and lumbar spine injuries. PATIENT population: Out of 103 patients operated upon consecutively for thoracic and lumbar spine injuries during the period 1990 to 1994 inclusive, 24 (23.3%) patients had laminar fractures out of whom 3 (2.9%) had an associated dural tear and an other 17 (16.5% or 70.8% of the total patients with laminar fractures) had an associated dural tear and nerve root entrapment. RESULTS: Twelve (70.5%) patients had injury at the thoraculumbar junction, 13 (76.5%) had Magerl's type A3 or above, 10 (58.8%) had a kyphotic angle deformity greater than 5 degrees. Seven (41.1%) had their spinal canal's sagittal diameter reduced by at least 50% and two had dislocations. Nine (52.9%) had initial neurological deficits. Four (50%) out of 8 patients with no initial neurological deficits (Frankel E) worsened to Frankel D. However, one patient among the 3 with initial Frankel A improved to Frankel C while both patients with initial Frankel C usefully improved to final Frankel grades D and E respectively. Two of the four patients with initial Frankel D improved to Frankel E, the other 2 remaining unchanged. All in all five patients neurological status improved, 4 worsened and 8 remained unchanged after neurosurgical treatment. CONCLUSIONS: Vertical laminar fractures with dural tears and nerve root entrapment represent a special group of thoracic and lumbar spine injuries that carry a poor prognosis. However, special operative precautions lead to significant improvement in some of them although a majority remain unchanged or even worsened.- - - - - - - - - - ranking = 1keywords = injury (Clic here for more details about this article) |
10/328. Management of an unstable lumbar fracture with a laminar split.This is a case report describing the injury sustained by a 36-year-old man injured in a motorcycle crash who sustained a fracture dislocation of L2 upon L3, associated with a split in the lamina of L3. His neurologic lesion was T12 asia B: with a motor score of 52 but with preservation of sensory function (sensory score 96) in most parts of his lower extremities. He also suffered a lower extremity fracture. Imaging of the spine is presented showing a multiplanar fracture associated with translation and with a defect in the lamina that may be seen in certain AO type B or type C fractures, that may entrap the lumbar spinal nerve roots. Discussants of this case comment on the classification and clinical significance of this fracture pattern. and present their operative approaches, both for management of this particular fracture pattern and for any associated dural tear. The issues of steroid use and the place of rehabilitation are also discussed.- - - - - - - - - - ranking = 1keywords = injury (Clic here for more details about this article) |
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