US Patent 7938833 Adjustable resection guide

A resection guide having an alignment barrel with holes that pass through the entire cross-section of the alignment barrel is disclosed. An alignment guide is mounted on the alignment barrel. Alignment guide can translate and rotate with respect to alignment barrel. The alignment guide has holes that extend through it. A resection plate is located at one end of the alignment guide. The resection plate has a resection surface. The resection guide is located on a bone using a navigation system and attached to the bone by driving two nails through the holes on the alignment barrel and one nail through one of the holes on the alignment guide. The resection surface is used to guide a tool for resecting the bone.