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Journal of Korean Neurosurgical Society > Volume 49(6); 2011 > Article
Journal of Korean Neurosurgical Society 2011;49(6): 317-322.
doi: https://doi.org/10.3340/jkns.2011.49.6.317
Strategies of Spinal Fusion on Osteoporotic Spine.
Sung Bae Park, Chun Kee Chung
1Department of Neurosurgery, Inje University College of Medicine, Seoul Paik Hospital, Seoul, Korea.
2Department of Neurosurgery, Seoul National University College of Medicine, Clinical Research Institute, Seoul National University Hospital, Seoul, Korea. chungc@snu.ac.kr
ABSTRACT
The prevalence of osteoporosis has been increasing globally. Recently surgical indications for elderly patients with osteoporosis have been increasing. However, only few strategies are available for osteoporotic patients who need spinal fusion. Osteoporosis is a result of negative bone remodeling from enhanced function of the osteoclasts. Because bone formation is the result of coupling between osteoblasts and osteoclasts, anti-resorptive agents that induce osteoclast apoptosis may not be effective in spinal fusion surgery, necessitating new bone formation. Therefore, anabolic agents may be more suitable for osteoporotic patients who undergo spinal fusion surgery. The instrumentations and techniques with increased pullout strength may increase fusion rate through rigid fixation. Studies on new osteoinductive materials, methods to increase osteogenic cells, strengthened and biocompatible osteoconductive scaffolds are necessary to enable osteoporotic patients to undergo spinal fusion. When osteoporotic patients undergo spinal fusion, surgeons should consider appropriate osteoporosis medication, instrumentation and technique.
Key Words: Osteoporosis; Spine; Fusion; Osteoblast; Osteoclast
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