| 主权项 |
1. An instrument for selectively decorticating a bony surface to prepare it for use as a bone graft bed, the instrument comprising:
an elongate shaft having a proximal handle, a distal end, and a longitudinal axis; a decorticating implement disposed upon the shaft, the implement having a medial face and a generally opposing lateral face, the implement comprising: (a) a truncated scoop disposed on the medial face, the scoop comprising a generally shallow bowl terminating along a linear distal edge, the scoop defining a groove positioned substantially parallel to the longitudinal axis, wherein the groove is sized and shaped to releasably receive a guide wire wherein the truncated scoop may be manipulated medially, toward the guide wire, in order to further selectively decorticate a selected bony surface; (b) an inclined blade disposed on the lateral face, the blade tapering in shape from a first thickness toward the linear distal edge to form a blade edge coincident with the linear distal edge wherein the inclined blade may be manipulated laterally, away from the guide wire, in order to selectively decorticate a selected bony surface wherein the blade edge may be manipulated in any direction in order to selectively decorticate a selected bony surface; (c) a distal notch positioned near a center portion of the linear distal edge, wherein the notch is sized and shaped to releasably receive the guide wire; and wherein the groove or the distal notch or the groove and the distal notch, when positioned to receive the guide wire, cooperate to provide tactile feedback about the location of the instrument relative to the guide wire to a hand of a user manipulating the instrument. |
