A comparison of radiographic and clinical outcomes of anterior lumbar interbody fusion performed with either a cellular bone allograft containing multipotent adult progenitor cells or recombinant human bone morphogenetic protein-2.

Although a Fisher’s exact test demonstrated a strong trend towards a significant difference in the proportion of post-operative complications ( p = 0.0578) between the treatment groups, this should be interpreted with some degree of caution due to the low numbers of patients and the high risk of a Type 2 error.

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