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Comparison of rhBMP-2 versus Autogenous Iliac Crest Bone Graft for 2-Level Anterior Cervical Discectomy and Fusion for Cervical Spondylotic Myelopathy

Bingyi Tan, Haiyan Wang, Jun Dong, Zenong Yuan, Dachuan Wang, Feng Wang

Department of Spinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China (mainland)

Med Sci Monit 2015; 21:3159-3165

DOI: 10.12659/MSM.894656

Available online:

Published: 2015-10-19


BACKGROUND: Few studies have examined the efficacy of recombinant human bone morphogenetic protein-2 (rhBMP-2) in 2-level anterior cervical discectomy and fusion (ACDF). The purpose of this study was to compare the outcomes in a series of patients with CSM treated with 2-level ACDF with or without rhBMP-2.
MATERIAL AND METHODS: The retrospective study included a total of 146 patients with CSM. The rhBMP-2 group consisted of 73 patients who underwent 2-level ACDF with rhBMP-2. A total of 73 patients who also received 2-level ACDF with autogenous ICBG alone were included in the matched-pair ICBG group with a ratio of 1:1, based on age, sex, and BMI. All data, including fusion rate and time, VAS, JOA score, operative date, and complications, were assessed.
RESULTS: With respect to the length of hospital stay, operative times, and blood loss, there were no significant difference between the 2 groups. However, the rhBMP-2 group presented a shorter fusion time (P<0.013) and higher fusion rate (P<0.036) than the ICBG group. In the rhBMP-2 group, 22% required additional treatment for complications compared to 18% of patients in the ICBG group, which showed no significant difference (P=0.543).
CONCLUSIONS: The application of rhBMP-2 in 2-level ACDF showed higher fusion rates, shorter fusion time, and similar function outcomes compared to those who received ACDF with ICBG alone.

Keywords: Bone Morphogenetic Protein 2 - therapeutic use, Bone Transplantation - methods, Cervical Vertebrae - radiography, Diskectomy - methods, Ilium - pathology, Length of Stay, Recombinant Proteins - therapeutic use, Smoking, Spinal Cord Diseases - therapy, Transforming Growth Factor beta - therapeutic use



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