OBjEcT Failed solid bony fusion, or pseudarthrosis, is a well-known complication of lumbar arthrodesis. Recent ad-. vances in radiographic technology, biologics, instrumentation, surgical technique, and understanding of the local biology. have all aided in the prevention and treatment of pseudarthrosis.
Definition of duff. 1  1 : a boiled or steamed pudding often containing dried fruit. 2  2 : the partly decayed organic matter on the forest floor. 3  3 : fine coal : slack.
[Gram.]. n. adj. nounâ²alâ¢ly, adv. 1  Grammarany member of a class of words that are formally distinguished in many languages, as in English, typically by the plural and possessive endings and that can function as the main or only elements of subjects or objects, as cat, belief, writing, Ohio, darkness.