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Posterior stabilization of C2 metastases by combination of atlantoaxial screw fixation and hook plate (1994)

Hertlein, H. ; Mittlmeier, T. ; Schürmann, M. ; [et al.]

Springer

European spine journal 3 (1994), S. 52-55

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ISSN: 1432-0932

Keywords: Metastasis of the cervical spine ; C2 instability ; Posterior fixation ; Atlantoaxial screw fixation ; Hook plate fixation

Source: Springer Online Journal Archives 1860-2000

Topics: Medicine

Notes: Summary A new technique for the stabilization of metastatic cervical instability of the axis and/or neighboring vertebrae at lower levels is described. By a combination of the transarticular screw fixation C1/2 (Magerl) with the hook plate technique (Magerl) (or facultatively with a 1/3 tubular or 3.5 mm dynamic compression plate) from a posterior approach, the risks and stresses on the patient of a transoral or a combined extended technique are avoided, creating a proven biomechanically stable situation. The new technique is particularly helpful in those patients with a rapid progression of their malignant disease in whom local tumor growth is not expected to compress the spinal cord, and palliative stabilization of the unstable upper cervical spine can avoid neurological deficits or alleviate pain syndromes at a minimized morbidity due to surgery. The new technique has been successfully applied in a limited clinical series of four patients with metastasis of the cervical spine, resulting in substantial improvement of the general condition and cervical pain syndrome and stability of the assemblage during the observation period (4–9 months).

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF02428317

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Intraosseous plating with absorbable self-reinforced poly-L-lactide plates in the fixation of distal femoral osteotomies on rabbits (1996)

Koskikare, K. ; Hirvensalo, E. ; Pätiälä, H. ; [et al.]

Hoboken, NJ : Wiley-Blackwell

Journal of Biomedical Materials Research 30 (1996), S. 417-421

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ISSN: 0021-9304

Keywords: Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Medicine , Technology

Notes: Osteotomies of distal femur were fixed by intraosseous self-reinforced poly-L-lactic acid (SR-PLLA) plates in 29 adult rabbits. The follow-up times were from 3 to 24 weeks. After sacrifice, radiological, histological, microradiographic, and oxytetracycline fluorescence studies were performed. Although radiographically no redisplacements were found, in 12 weeks two fixations were broken and a fibrotic nonunion was observed in one case. At 24 weeks full bone consolidation was seen in all except one osteotomy. No foreign-body reactions were observed. The present article is the first report on successful application of absorbable plates for intraosseous fixation of weight-bearing bone osteotomies. The present investigation demonstrated that the SR-PLLA plates were suitable for the fixation of cancellous bone osteotomies in rabbits.

Additional Material: 1 Ill.