<unk> s have been seen to dislodge between 1 and 3 weeks from deployment, although lengthy clip retention intervals of as high as 26 months have been reported.<unk> s are believed to be safe and no major complications (such as perforation or impaction) have been reported with them, although concern has been raised about blocking the outflow of the bile duct if clips are deployed in the duodenum.
Endoclip
Syndesmotic screw
Bone collar
Valspodar
Alloplant
Hydrocollator
Polyaxial screw
Fraxel