An endcap for engaging a proximal end of an intramedullary nail. The endcap includes a body extending from a first end to a second end and configured to engage a channel of an intramedullary nail. The endcap also includes a head portion at the first end of the body. The head portion includes a recess sized and shaped to receive a driving element of a drive shaft. The recess includes elastic tabs extending radially toward a central axis of the recess to engage and retain a driving element received therein.

A femur fixation system includes an intramedullary nail that includes a first bending stiffness and a bone plate that includes a second bending stiffness and a second torsional stiffness. In the femur fixation system either at least one of the second torsional stiffness compensates for the first torsional stiffness and the first torsional stiffness is insufficient to enable the intramedullary nail to stabilize the bone fracture independently of the bone plate or the first bending stiffness compensates for the second bending stiffness and the second bending stiffness is insufficient to enable the bone plate to stabilize the bone fracture independently of the intramedullary nail.

An instrumentation system (100) and an intramedullary femoral nail system (1) for antegrade or retrograde implantation with laterally inserted bone screws, the system comprising a nail stem (2) having a multi-featured proximal end (3), a distal end and a central conduit (22) configured to accommodate a fastener (4), wherein the multi-featured proximal end (3) comprises a plurality of holes (20) configured to accommodate at least two bone screws (50, 52), wherein the first bone screw (50) is at an angle that is horizontal relative to the central conduit (22) and is on a coronal plane, and the second bone screw (52) is at an angle of between 120° to 130° relative to the central conduit (22).

A surgical or arthroscopic method for resurfacing at least one surface of a hip joint of a human patient, using a medical device comprising an artificial hip joint surface, wherein the hip joint surface comprising an acetabulum surface and a caput femur surface, said method comprising the steps of: creating at least one hole passing into the hip joint, dissecting and preparing the hip joint, introducing at least one artificial hip joint surface, comprising at least one of an artificial acetabulum surface and an artificial caput femur surface, wherein said at least one artificial hip joint surface, comprising a first sealing member, creating a sealed hollow space between said first sealing member and one of the acetabulum surface or said artificial acetabulum surface and one of the caput femur surface or said artificial caput femur surface, selecting at least one artificial hip joint surface and injecting a material into said hollow space.

The present invention relates to an improved orthopaedic device for athrodesis, in particular for the arthrodesis or fusion of a joint, for example an ankle joint, of the type comprising of a nail having head and tip ends opposed to each other; at least a first portion of the nail having an axis of symmetry; a single circular first transverse hole made in the first portion near the head of the nail and extended according to its own axis perpendicularly to the axis of symmetry; a slotted second transverse hole still made in the first portion of the nail and extended perpendicular to both the first axis of symmetry; and to the axis of the first transverse hole; and the slotted second transverse hole being made at a greater distance with respect to the head of the nail than the distance from the head of the first transverse hole.

A set screw for use in an intramedullary fracture fixation device having a longitudinal axis includes a housing and a set screw. The set screw may include a body with an external thread and an elastic member extending from the body, the elastic member having an uncompressed condition and a compressed condition. The housing may include a sidewall partially surrounding the longitudinal axis that defines a cavity for receiving the set screw such that when the set screw is at least partially disposed within the cavity and in the uncompressed condition, the set screw is secured to the housing and rotatable relative to the housing.

An intramedullary intertrochanteric fracture fixation device includes an intramedullary nail having a proximal portion and a distal portion, a neck screw and a set screw assembly (264, 262, 266). The intramedullary nail defines an angulated opening in the proximal portion and includes an axial bore extending through a proximal end of the nail and into the angulated opening. The proximal portion further includes a compartment defined by an upper stop, a lower stop and a sidewall. The sidewall of the compartment defines a slot. The neck screw is insertable the angulated opening and includes a length and an exterior surface defining a groove. The set screw assembly (264, 262, 266) is pre-operatively assembled within the proximal portion of the intramedullary nail and selectively moveable into the compartment for preventing rotational movement of the neck screw within the angulated opening of the intramedullary nail. The set screw is cannulated to receive a guidewire when pre-operatively assembled.

A surgical system for osteosynthesis of femoral fractures, individual parts of such system, and a related surgical procedure is provided. Two different osteosynthesis methods are combined: the intramedullary hip screw for hip fractures and the retrograde femoral nail for femoral shaft fractures. The system includes a new jig for the insertion of the retrograde intramedullary nail and the femoral neck screw. The surgical system makes it possible to osteosynthesize obese patients with trochanteric hip fractures in a safer and improved controlled surgery with the aim of reducing complications to this type of surgery.

A device for fixation of inner and outer bone fragments comprises at least three fixation means (5), at least one tilting preventing means (6) and a securing plate (7). The fixation means (5) are configured to allow, during secondary compression of the inner and outer bone fragments (2, 3), a sliding movement of the fixation means and said outer bone fragment relative to one another and thereby an interruption of an engagement of the securing plate (7) with the outer bone fragment (3) without affecting the angular position of the fixation means relative to the securing plate and relative to one another. The tilting preventing means (6) is configured to allow, during said secondary compression, a sliding movement of the at least one tilting preventing means and said outer bone fragment (3) relative to one another and thereby an interruption of the engagement of the securing plate (7) with the outer bone fragment. The tilting preventing means (6) is also configured to prevent or counteract tilting of the device.

The cephalomedullary nailing system of this invention contributes to solving three main problems: reduce fractures, improve assembly biomechanics to ensure the load axis is favorable as possible for bony fragments and prevent femoral neck collapse as well as offset and limb length loss, hence avoiding the possibility of reduced abductor power. The system is based on specific screw channel geometry and the placement of an additional locking screw, allowing the nail to turn 360° and facilitating nail insertion through the screw.