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  • Title: Spondylectomy, microsurgical decompression and osteosynthesis in the treatment of complex disorders of the cervical spine.
    Author: Seifert V, Zimmermann M, Stolke D, Wiedemayer H.
    Journal: Acta Neurochir (Wien); 1993; 124(2-4):104-13. PubMed ID: 8304055.
    Abstract:
    In 44 patients with complex degenerative, traumatic, neoplastic and infectious disorders of the cervical spine an aggressive surgical approach was used, consisting of spondylectomy, radical microsurgical decompression and osteosynthesis. The patient group consisted of 23 patients with multisegmental cervical spondylosis, 9 patients with primary or metastatic malignant tumour disease spread along the cervical spine, 6 patients with complex cervical trauma and 6 patients with infection affecting one or more cervical segments. Considering the heterogeneity of the group of patients treated, a multitude of neurological symptoms and signs were present. Excruciating pain was the predominant symptom in 84% of the patients, followed by sensory and motor signs of varying degrees in 77% and 65% respectively. Involvement of the long tracts was present in 51%, gait disturbance in 49% and bladder disfunction in 28%. Considering the nature of the underlying disease, in the group with multisegmental cervical spondylosis (MSCS), advanced cervical myelopathy was the predominant clinical symptom, whereas in those patients with trauma, tumour or infection, pain was the leading symptom, followed by disturbed motor and/or sensory function. Altogether 59 vertebrae have been removed in the 44 patients. In 28 patients spondylectomy was performed at one level, in 15 patients at two levels and in one female tumour patient at three levels. In 34 patients an iliac crest bone graft was used and in 10 patients bone cement. Within the observation period, solid fusion was achieved in all patients. In one tumour patient screw loosening was demonstrable at follow-up, but the fusion remained stable. 2 patients with infectious disease required re-operation due to significant loosening of screws and plates. However, after re-stabilization solid fusion was achieved. Considering amelioration of specific pre-operative symptoms and signs, excruciating pain responded best to the stabilizing procedure, with improvement in over 90% of the patients, followed by improvement of sensory and motor deficits in 85% and 82% respectively. Improvement in pre-operative gait disturbance could be achieved in 81% of the patients, while disturbance of bladder function is less likely to improve after surgery with a positive response in only 58%. None of the patients became neurologically worse after surgery. With regard to the underlying disease, patients with MSCS and tumour had the best results with overall improvement in 62% and 75% respectively. While in patients with infection improvement could be achieved in 58%, improvement in trauma patients was demonstrable in only 34% while in 66% the pre-operative clinical status remained unchanged.(ABSTRACT TRUNCATED AT 400 WORDS)
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