A system, includes a first screw mechanism including: a first block; a first screw threaded through the first block and including a first skin-interfacing portion; and an intramedullary (IM) member extending from and attached to the first block and including an end portion configured to be inserted into an intramedullary canal of a first bone fragment, wherein a first lateral force is generated between the first skin-interfacing portion against a second bone fragment, adjacent to the first bone fragment, and a holding force provided by the end portion when the first screw is rotated and the end portion is located in the intramedullary canal.

An assembly includes a first portion including an anchor pivotally attached to a first end of the first portion, the anchor to be inserted into an intramedullary canal of a first bone fragment; a second portion pivotally attached to a second end of the first portion and including a first skin-interfacing portion; a second skin-interfacing portion to interface with and secure the assembly to skin adjacent to the first bone fragment; and an actuation mechanism attached between the first portion and the second portion that actuates pivoting of the second portion to the first portion; wherein a lateral force is generated between the first skin-interfacing portion against a second bone fragment, adjacent to the first bone fragment, and a holding force is provided by the anchor when the actuation mechanism is actuated, so the first portion pivots with respect to second portion, while the anchor is in the intramedullary canal.

A device includes a first arm and a second arm. The first arm includes a first arm body that extends from a first end to a second end and a guide. The guide is rotatably coupled to the second end of the first arm body and is configured to be coupled to a first bone. The second arm includes a second arm body extending from a first end to a second end and is coupled to the first arm body such that it is rotatable with respect to the first arm body. The second arm is configured to engage a second bone. In use, rotation of the second arm body with respect to the first arm body changes the distance between the first bone and the second bone and rotation of the guide with respect to the first arm body rotates the first bone.

The disclosed subject matter relates to a visual guide for aiding the surgeon in the insertion of a k-wire. The guide including a ring for receiving a guide wire, the guide wire extending from the ring parallel to the center axis of the ring; and, a ring attachment mechanism configured to attach the visual guide to a wire driver. The guide wires representing the trajectory of the k-wire in two orthogonal planes thus allowing the surgeon to free hand the insertion by visually referencing the guide wires and the actual trajectory of the k-wire within the bone.

Methods and apparatus are disclosed for excising a joint between first and second bones to define a resected joint, approximating the first and second bones to reduce the resected joint, and fixing the first and second bones relative to each other. The excising step can be performed using a cut guide that is movable from a first orientation to cut the first bone to a second orientation to cut the second bone. A compressor block can be driven over temporary fixation members that extends into the first and second bones to reduce the resected joint. A staple, along or in combination with other fixation elements, can then permanently fix the first bone to the second bone.

A bone cutting and joint realignment instrument may include an integrated spacer body, bone preparation guide, and fulcrum body. The spacer body is configured to be inserted into a joint space between a metatarsal and an opposed cuneiform of a foot. The bone preparation guide body is affixed to the spacer body with the spacer body extending downwardly from the bone preparation guide body. The bone preparation guide body can define at least one guide surface configured to be positioned over at least one of the metatarsal and the opposed cuneiform. The fulcrum body may be rotatably coupled to the spacer body within a bounded range of rotation, such as a bounded range of less than 45 degree. The fulcrum body can be configured to be inserted in an intermetatarsal space between the metatarsal and an adjacent metatarsal.

The present disclosure provides an apparatus comprising a wire having a first end and a second end opposite the first end. A first portion of the wire including the first end comprises a malleable region that is configured to remain deformed after bending, and a second portion of the wire including the second end comprises a superelastic region that is configured to return to a straight configuration after bending.

The present disclosure relates to a method for guiding an osteotomy procedure on at least one bone selected from a tibia and a femur pertaining to a patient's lower limb to correct a misalignment of said lower limb, wherein a tibial tracker is fixed to the tibia and a femoral tracker is fixed to the femur, comprising: receiving at least one target alignment parameter of the lower limb; determining a position of a set of characteristic points on at least one of the tibia and the femur relative to at least one of the tibial tracker and the femoral tracker; applying mechanical constraints to the lower limb to bring the lower limb in a constrained position simulating laxities and/or soft tissues influence tracking positions of said characteristic points relative to at least one of the tibial tracker and the femoral tracker based on localization data of the set of characteristic points during application of said mechanical constraints, determining at least one alignment parameter of the lower limb in said constrained position, based on the positions of the characteristic points; based on the at least one target alignment parameter and on the at least one alignment parameter of the lower limb in the constrained position, determining at least one correction parameter of the osteotomy procedure to be applied to the lower limb to achieve the target alignment parameter.

The present invention provides, in certain embodiments, a device for determining the tibial mechanical axis and the femoral mechanical axis. The present invention also provides a surgical orientation device, a reference device, and/or a module configured to track the mechanical axes during movement to facilitate limb alignment. The present invention further provides the surgical orientation device, the reference device, and/or the module configured to determine a gap measurement.

A system includes a base and a targeting guide coupled to the base. The base includes a first member and a second member. The first member defines a first hole for receiving a first fixation element for coupling the first member to a bone. The second member is pivotably coupled to the first member. The second member defines a second hole and a third hole. The second hole is for receiving a second fixation element for coupling the second member to a bone, and the third hole is for receiving an adjustment member for adjusting an angle between the first member and the second member. The targeting guide extends from a first end to a second end and defines a fourth hole adjacent to the second end of the targeting guide. The fourth hole is sized and configured to receive a fixation device therein.