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.
chuck 1. tr.v. chucked, chuckÂ·ing, chucks. 1. To pat or squeeze fondly or playfully, especially under the chin. 2. a. To throw or toss: chucked stones into the water. b. Informal To throw out; discard: chucked my old sweater.