Abstract: An instrument for locating an axis of a blocking screw is disclosed. The instrument is applicable for a retrograde installation of a femoral intramedullary device or an antegrade installation of a tibial intramedullary device. The instrument includes a drill jig with a radiolucent frame portion and a mounting portion. The mounting portion is adapted to connect to an intramedullary device, and the frame portion has at least one aperture for locating the axis of the blocking screw. The drill jig is adjustable to locate the aperture in a longitudinal or rotational direction relative to the intramedullary device.

Abstract: Certain embodiments of the invention provide plates for treating periarticular fractures or other non-full body weight bearing applications that combine polyaxial fixation with a low profile and enhanced contouring that more closely conforms to bone. Such plates can be designed to achieve buttressing effect and/or to be used in a reinforcement mode. Other features can be combined with these. Such plates can be created for use on bone sites such as on a tibia, fibula, metatarsal, calcaneous, other foot bone, humerus, radius, ulna, spinal, maxillofacial, as well as sites on other bones.

Abstract: Certain embodiments of the invention provide plates for treating periarticular fractures or other non-full body weight bearing applications that combine polyaxial fixation with a low profile and enhanced contouring that more closely conforms to bone. Such plates can be designed to achieve buttressing effect and/or to be used in a reinforcement mode. Other features can be combined with these. Such plates can be created for use on bone sites such as on a tibia, fibula, metatarsal, calcaneous, other foot bone, humerus, radius, ulna, spinal, maxillofacial, as well as sites on other bones.

Abstract: PROBLEM TO BE SOLVED: To provide a perforating pin and equipment for perforation with which an accurate piercing region and piercing direction of a guiding pin can be easily specified at the neck of the femur or its surroundings and an advancing situation of the perforating pin can be confirmed when the perforating pin is pierced.