Patent ID: 8998925
Filing Date: 2015-04-07
Classification: A61B,A61F

Abstract:
1. An orthopedic implant with a supplemental fixation system that releasably secures to the orthopedic implant to supplement fixation of the orthopedic implant in a cancellous portion of a bone, the orthopedic implant with the supplemental fixation system comprising: an orthopedic implant having at least one lumen extending from a proximal portion to a distal portion that is configured to extend into the cancellous portions of the bone; at least one fixation structure that is configured to extend through the lumen in the orthopedic implant and into the cancellous portion of the bone past the distal portion of the orthopedic implant; a curable, flowable biomaterial that flows through the lumen into engagement with the fixation structure near the distal portion of the orthopedic implant and is configured to cure in situ in contact with the cancellous portion of the bone, the fixation structure and cured biomaterial located in the cancellous portion of the bone comprising at least one surface that is configured to engage with an undercut in the cancellous portion of the bone to oppose a pull-out force acting generally along a pull-out direction; and a fastener that releasably secures the fixation system in the lumen of the orthopedic implant to supplement fixation of the orthopedic implant in the cancellous portion of the bone, such that the fixation structure and cured biomaterial are detachable from the orthopedic implant to facilitate subsequent removal of the orthopedic implant from the cancellous portion of the bone without removing the fixation structure or the cured biomaterial from the bone.