A guided punch is disclosed. The guided punch generally comprises a strike cap comprising a strike surface, a punch comprising a distal cutting edge, and a guide rod. The strike cap defines a first cavity therein. The punch defines a second cavity therein in communication with the first cavity. The guide rod is located within the first and second cavities and extends a predetermined distance beyond the distal cutting edge of the punch. The strike cap and the punch are moveable relative to the guide rod.

An implantable body for a posterior stabilization system includes a lateral end, a medial end, an inwardly facing surface configured to abut against a lamina when the body is implanted along a vertebra. A lateral bone outrigger extends from the inwardly facing surface and may include a bone-abutting surface along a medial portion disposed to abut against a lateral mass of the vertebra when the body is implanted along a vertebra. The lateral bone outrigger may have a first height. A penetrating feature extends from the inwardly facing surface between the bone-engaging portion of the inwardly facing surface and the lateral bone outrigger. The penetrating feature may have a second height less than the first height. A fastener bore extends through the body at an angle toward the lateral bone outrigger.

A bone positioning guide may include a main body member, a shaft, and a bone engagement member. The shaft can be movably connected to the main body member and have the bone engagement member rotatably coupled to its distal end. The bone engagement member can have a surface configured to engage a bone. The main body member can also include a tip opposite the bone engagement member for engaging a second bone. In use, the bone engagement member may be positioned in contact with a medial side of a first metatarsal while the tip is positioned in contact with a lateral side of a different metatarsal, such as a second metatarsal. The shaft can then be moved to advance the bone engagement member toward the tip, causing realignment of the first metatarsal.

A method for displaying graphical indications associated with a joint includes: receiving image data associated with a joint of a subject; generating a three-dimensional model of at least a portion of the joint of the subject using the image data; identifying at least one region of the joint that deviates from a baseline anatomy by comparing at least a portion of the three-dimensional model to a baseline model; generating at least one measurement of a characteristic of the joint at one or more predefined locations using the three-dimensional model and a coordinate system; displaying a spectrum bar graph that comprises at least one representation of the at least one measurement of the characteristic of the joint; determining a pathology associated with the joint based on the at least one measurement of the characteristic of the joint; and displaying at least one graphical indication indicating the pathology associated with the joint.

A complete removal and reinsertion of instruments is avoided when the instruments are initially not correctly positioned during a minimally invasive operation on a bone, in particular a vertebra of the spine. This aim is achieved by an instrument set for spinal operations, including a guide rod, which has a cavity extending along the axis of the guide rod, and a guide tube, which can be received in the cavity of the guide rod, wherein the guide rod has a distal lip, which is arranged eccentrically to the cavity and/or to a center axis of the guide rod.

A patella fracture fixation system includes a peripheral rim bone plate that is configured to be implanted along a parapatellar lateral approach. The bone plate can configured to minimize disruption of blood supply to the patella. The bone plate can be augmented with a Krackow suture pattern to assist in stabilization of a comminuted inferior pole.

The present subject disclosure provides a novel design for devices and methods for straightening a curved spine by using a reduction tool to move the spine with respect to an attached bone plate.

A technique for correcting a bone deformity, such as a bunion, may be performed using an instrument. The technique may include preparing an end of a first metatarsal and preparing an end of a medial cuneiform opposing the end of the first metatarsal. The technique may also include moving the first metatarsal relative to the medial cuneiform. The technique can involve inserting the instrument between a first metatarsal and a second metatarsal.

A pedicle bone fastener may include a shaft, a helical thread, and an integrated attachment feature. The shaft may include a proximal end, a distal end, and a longitudinal axis. The helical thread may be disposed about the shaft along the longitudinal axis between the proximal and distal ends of the shaft. The helical thread may include a first undercut surface and a second undercut surface. The first undercut surface may be angled toward one of the proximal end and the distal end of the shaft and the second undercut surface may be angled toward the other one of the proximal end and the distal end of the shaft. The integrated attachment feature may be disposed at the proximal end of the shaft and configured to be adjustably secured to a spinal stabilization implement.

This invention provides an anchoring apparatus comprising a primary anchor and a secondary anchor. The primary anchor defines a primary bore, a tail section, and a head section. The head section defines a pair of substantially parallel bores extending through the head section of the primary anchor. The secondary anchor is sized and configured to mate with the head section of the primary anchor at a head section opening of the primary bore.