1/97. Transoral fusion with internal fixation in a displaced hangman's fracture.STUDY DESIGN: A case is reported in which late displacement of a "hangman's fracture" was managed by transoral C2-C3 fusion by using bicortical iliac crest graft and a titanium cervical locking plate. OBJECTIVES: To review the management of unstable fractures of the axis and to study other reports of transoral instrumentation of the cervical spine. SUMMARY OF BACKGROUND DATA: Undisplaced fractures of the axis are considered to be stable injuries. Although late displacement is unusual, it can lead to fracture nonunion with persisting instability and spinal cord dysfunction. In this situation, an anterior fusion of the second and third cervical vertebrae is preferred to a posterior fusion from the atlas to the third cervical vertebra, which would abolish lateral rotation between C1 and C2. methods: The literature on hangman's fractures was reviewed. Clinical and radiographic details of a case of C2 instability were recorded, and the particular problems posed by late displacement were considered. RESULTS: There are no other reports of transoral instrumentation of the cervical spine. A sound fusion of C2-C3 was obtained without infection or other complications. Good neck movement returned by 6 months after surgery. CONCLUSION: Undisplaced fractures of the axis are not always stable. The transoral route allows good access for stabilization of displaced hangman's fractures. In special circumstances, a locking plate may prove useful in securing the bone graft. The cervical spine locking plate can be inserted transorally with no complications and by using standard instrumentation.- - - - - - - - - - ranking = 1keywords = spinal (Clic here for more details about this article) |
2/97. Traumatic L5-S1 spondylolisthesis.We report a case of traumatic spondylolisthesis in a 31-year-old man struck by a steel I-beam. Although most reported traumatic spondylolisthesis cases are from low-energy trauma, this was a high-energy trauma case. The initial examination revealed no signs of cauda equina syndrome, and the patient's spinal injury was primarily capsuloligamentous. We present this rare case, with a review of pertinent literature and treatment mechanisms for traumatic spondylolisthesis.- - - - - - - - - - ranking = 1keywords = spinal (Clic here for more details about this article) |
3/97. ehlers-danlos syndrome associated with multiple spinal meningeal cysts--case report.A 40-year-old female with ehlers-danlos syndrome was admitted because of a large pelvic mass. Radiological examination revealed multiple spinal meningeal cysts. The first operation through a laminectomy revealed that the cysts originated from dilated dural sleeves containing nerve roots. Packing of dilated sleeves was inadequate. Finally the cysts were oversewed through a laparotomy. The cysts were reduced, but the postoperative course was complicated by poor wound healing and diffuse muscle atrophy. ehlers-danlos syndrome associated with spinal cysts may be best treated by endoscopic surgery.- - - - - - - - - - ranking = 6keywords = spinal (Clic here for more details about this article) |
4/97. Spinal markers: A new method for increasing accuracy in spinal navigation.Spinal navigation opens up a completely new dimension in the planning and realization of neurosurgical and orthopedic procedures, and offers the possibility of simulating the operation preoperatively. There is currently only limited experience with spinal navigation, and despite the development of advanced software, intraoperative difficulties include identification of characteristic and reproducible anatomical landmarks, localization of these points in the surgical field, referencing, and intraoperative control. We report the use of a new kind of implantable fiducial marker in a case of a 58-year-old female patient with spondylolisthesis. Percutaneously applied spinal markers were used as prominent anatomical landmarks and permitted much easier intraoperative handling. In our opinion, in the hands of an experienced neurosurgeon or orthopedist, the additional preoperative time required for placement of such spinal markers is negligible.- - - - - - - - - - ranking = 7keywords = spinal (Clic here for more details about this article) |
5/97. Iatrogenic spondylolysis leading to contralateral pedicular stress fracture and unstable spondylolisthesis: a case report.STUDY DESIGN: A case report of iatrogenic spondylolysis as a complication of microdiscectomy leading to contralateral pedicular stress fracture and unstable spondylolisthesis. OBJECTIVE: To improve understanding of this condition by presenting a case history and roentgenographic findings of a patient that differ from those already reported and to propose an effective method of surgical management. methods: A 67-year-old woman with no history of spondylolysis or spondylolisthesis underwent an L4-L5 microdiscectomy for a left herniated nucleus pulposus 1 year before the current consultation. For the preceding 8 months, she had been experiencing low back and bilateral leg pain. Imaging studies revealed a left L4 spondylolytic defect and a right L4 pedicular stress fracture with an unstable Grade I spondylolisthesis. RESULTS: The patient was treated with posterior spinal fusion, which resulted in complete resolution of her clinical and neurologic symptoms. CONCLUSIONS: Iatrogenic spondylolysis after microdiscectomy is an uncommon entity. However, it can lead to contralateral pedicular stress fracture and spondylolisthesis, and thus can be a source of persistent back pain after disc surgery. Surgeons caring for these patients should be aware of this potential complication.- - - - - - - - - - ranking = 1keywords = spinal (Clic here for more details about this article) |
6/97. vertigo, tinnitus, and hearing loss in the geriatric patient.OBJECTIVE: To document clinical changes after a course of chiropractic care in a geriatric patient with vertigo, tinnitus, and hearing loss. Clinical Features: A 75-year-old woman with a longstanding history of vertigo, tinnitus, and hearing loss experienced an intensified progression of these symptoms 5 weeks before seeking chiropractic care. Radiographs revealed a C3 retrolisthesis with moderate degenerative changes C4-C7. Significant decreases in audiologic function were evident, and the RAND 36 health Survey revealed subjective distress. Intervention and Outcome: The patient received upper cervical-specific chiropractic care. Paraspinal bilateral skin temperature differential analysis was used to determine when an upper cervical adjustment was to be administered. Radiographic analysis was used to determine the specific characteristics of the misalignment in the upper cervical spine. Through the course of care, the patient's symptoms were alleviated, structural and functional improvements were evident through radiographic examination, and audiologic function improved. CONCLUSION: The clinical progress documented in this report suggests that upper cervical manipulation may benefit patients who have tinnitus and hearing loss.- - - - - - - - - - ranking = 1keywords = spinal (Clic here for more details about this article) |
7/97. Retained surgical sponges, a denied neurosurgical reality? Cautionary note.Surgically acquired foreign bodies are well known but not widely reported. Only seven articles pertaining to this subject were found in the current neurosurgical literature. Are they a denied neurosurgical reality? In this report with a concededly provoking title, the authors elucidate clinical and medicolegal aspects of retained surgical sponges, with emphasis on spinal procedures. To highlight particulars, a case is presented in which a retained surgical sponge was encountered as the cause of progressive low back pain and tender swelling in the scar area after instrumented posterolateral lumbar spinal fusion combined with pedicle screw fixation for lumbosacral spondylolisthesis 4 years earlier. However, until today, no reported neurosurgical patient has suffered a serious complication due to a retained surgical sponge. The authors wish to remind the neurosurgical community to learn from unpleasant clinical and medicolegal experiences in other specialties before serious complications occur, and we suggest rigorous standardization of intraoperative habits to avoid this hazardous complication.- - - - - - - - - - ranking = 2keywords = spinal (Clic here for more details about this article) |
8/97. candida albicans spinal epidural abscess secondary to prosthetic valve endocarditis.A 56-year-old woman, with underlying rheumatic heart disease status post mitral valve replacement, presented with fever, low back pain radiating to right leg, and congestive heart failure. magnetic resonance imaging detected an L5-S1 spinal epidural abscess. A vegetation on prosthetic mitral valve was found by transesophageal echocardiography. Cultures of epidural aspirate, surgical specimen, and blood all grew candida albicans. She received surgical drainage of the spinal epidural abscess and i.v. amphotericin b 1 mg/kg/day for eight weeks. Clinical symptoms improved gradually and she was discharged without neurologic sequelae. She remained well and continued to lead an active life two years after discharge.- - - - - - - - - - ranking = 6keywords = spinal (Clic here for more details about this article) |
9/97. Posterolateral spinal fusion at unintended levels due to bone-graft migration: no effect on clinical outcome in 19/130 patients.In a prospective randomized study, we evaluated the risk of lumbar posterolateral spinal fusion at an unintended level due to bone graft migration. 130 patients underwent fusion supplemented by pedicle screw fixation (Cotrell-Dubousset, 64 patients) or uninstrumented fusion (66 patients). This was assessed by two independent observers on antero-posterior, and lateral radiographs taken 1 year after surgery. All patients had ben operated on at the preoperatively planned levels. Both observers agreed that fusion had taken place at an unintended level in 19 cases (14%). We found a tendency towards a higher risk of this "complication" when using supplementary pedicle screw fixation. The functional outcome, assessed by the Dallas Pain Questionnaire and the low back pain Rating scale, was similar in patients having fusion at an unintended level and in patients fused only at the intended levels. There was no difference between the two groups concerning reoperation rates, postoperative smoking or social status. We conclude that unintended fusion occurs and tends to be commoner with the use of pedicle screw instrumentation. However, this complication seems not to affect the functional outcome if fusion has taken place at the intended level.- - - - - - - - - - ranking = 5keywords = spinal (Clic here for more details about this article) |
10/97. Complete spondylolisthesis in an infant. Treatment with decompression and fusion.A grade 4 spondylolisthesis at the level of L-4 and L-5 was detected in a 3-year-old girl who had a spastic gait and focal sensory deficit. There was no history or objective evidence of substantial spinal trauma. A deformity over the lower part of the spine had been noted at 1 year of age and the radiological lesion was more extensive than that found in classical spondylolysis. Consquently, a diagnosis of congenital spondylolisthesis is most acceptable. Treatment via combined posterior and posterolateral fusion following anterior decompression has yielded gratifying results.- - - - - - - - - - ranking = 1keywords = spinal (Clic here for more details about this article) |
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