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A new dorsal modular fixation device allows a modified approach in cervical and cervico-thoracic neoplastic lesions
K Huch1, B Cakir, K Dreinhöfer
1Department of Orthopedic Surgery and Spinal Cord Injury (RKU), University of Ulm, Germany. klaus.huch@medizin.uni-ulm.de
Introduction:
The aim of this study was to improve the management of cervical tumor osteolysis. A new modular rod-screw implant system for the posterior instrumentation of the occipito-cervical, cervical and cervico-thoracic spine (neon occipito cervical system, Ulrich, Germany) is available since 2000. K-wire guided pedicle screws are used, CT-guided instrumentation is possible. Previous studies have demonstrated increased biomechanical stability compared to established posterior cervical systems.
Methods:
The cervical and cervico-thoracic spine of 8 patients (6 males, 2 females, mean age 62 years, range 48-77 years) with osteolysis due to plasmocytoma (n=2), bronchial (n=2), mammary (n=2), esophageal (n=1) and pancreatic (n=1) carcinoma were instrumentated since June 2001.
Results:
A stable fixation without loosening or failure of the fixation system was achieved in all cases. No impairment of the neurogical status was observed.
Conclusion:
Posterior instrumentation of the cervical spine including the occipito-cervical and the cervico-thoracic region with a new modular angle-stable rod-screw implant system offers good stabilization and allows simultaneous decompression. Since tumor masses are predominantly located in the anterior portion of the spine blood loss can be reduced.
