Anterior bone loss after cervical disc replacement: A systematic review.

Kieser et al[ 26 , 27 ] reported that ABL caused no statistical difference in visual analogue score for arm or neck pain at any time after surgery, although the neck disability index score showed a decreasing trend at the last follow-up in patients with ABL (18.9 in the non-ABL group, 11.2 in the mild group, 10.1 in the moderate group, and 9.0 in the severe group, P = 0.094).

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