Patent ID: 7137987

Claim:
A bone plating system for fixation of bone comprising: a bone plate having: an upper surface; a lower surface; at least one non-threaded plate hole having a sidewall; at least one threaded plate hole; at least one locking bone screw having a shaft with a first thread for engaging bone and a head with a second thread configured and dimensioned to mate with the thread of the threaded plate hole; and at least one non-locking cancellous bone screw having a shaft with a cancellous thread for engaging the cancellous tissue of the bone and a head whose diameter is larger than the non-threaded plate hole diameter, wherein the locking and non-locking bone screws remain seated in their respective plate holes for substantially as long as the bone plate is implanted, wherein the at least one non-locking cancellous bone screw has a core diameter smaller than the non-threaded plate hole diameter, and the cancellous thread has a diameter larger than the non-threaded plate hole diameter, and a thread pitch that is sufficiently large to clear the sidewall of the non-threaded plate hole.