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.
buff 1. n. 1. A soft, thick, undyed leather made chiefly from the skins of buffalo, elk, or oxen. 2. A military uniform coat made of such leather.