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The optimal animal model for in vivo testing of spinal implants, particularly total or partial disc replacement devices, has not yet been determined. Mechanical and morphological similarities of calf and human spines have been reported; however, limitations of the calf model include open growth plates and oversized vertebrae with growth. Mature runt cows (Corrientes breed) may avoid these limitations...
Anterior cervical discectomy and fusion (ACDF) using autogenous iliac bone graft may lead to donor-site morbidity. This has led some surgeons to use alternatives to iliac bone graft, but often the alternatives have greater rates of nonunion and delayed union. Bone morphogenic protein (BMP) studies have found high arthrodesis rates in lumbar fusions.The objective of this pilot study was to compare...
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