A fixation device for a knee replacement. The fixation device includes a stem configured to be fixedly attached to one of a tibial component of the knee replacement and a femoral component of the knee replacement. The stem has a continuously tapered outer surface and has a distal end that is distal to said one of the tibial component and the femoral component. A tapered projection is positioned on the continuously tapered outer surface and is tapered in the same direction as the continuously tapered outer surface. The stem and the tapered projection are configured so that the continuously tapered outer surface and the tapered projection engage a patient's bone when the stem is inserted into a bone canal within the patient's bone. In addition, the continuously tapered outer surface of the stem at the distal end of the stem and the tapered projection are configured to mechanically fix the knee replacement to the patient's bone by being wedged within the bone canal.

A surgical instrument and method for inserting a spinal implant in the intervertebral disc space between two adjacent vertebrae and an anchor engageable with the implant and an adjacent vertebra are provided. The instrument includes an inserter having an engagement portion including a distal engagement surface for interfacing with the implant and a handle portion. The engagement portion includes a track for slidably translating the anchor toward the engagement surface. A kit is provided including the inserter and a tamp to force the anchor into engagement with the implant and the adjacent vertebra. The kit may also include a cutter for piercing the adjacent vertebra.

Compositions and methods thereof include bone fibers made from cortical bone in which a plurality of bone fibers are made into shapes that are used to augment fixation of orthopedic implants and screws. Sheets of bone fibers may be used as an interface between bone and tissue, tendons, and/or ligaments. Cylindrical shaped implants that may be placed in drilled holes in bone prior to screw placement to enhance fixation of the screw. The physical presence of the fibers provides initial fixation, while the use of an osteoinductive material provides long term enhancement of bone formation around the screw and hence fixation. The bone fiber compositions may be in the form of a cylinder or a tube. A delivery system and methods of use are also provided.

Methods of inserting and retaining interbody fusion material are disclosed. In some embodiments, the methods include inserting an anchored implant comprising a bone anchoring portion and an engagement portion. A method may also include inserting at least one bone fusion material within a disc space between two adjacent vertebral bodies. In some embodiments, a method includes driving the bone anchoring portion into an outer surface of at least one of the adjacent vertebral bodies and recessing the bone anchoring portion within the outer surface of the at least one adjacent vertebral body.

The present disclosure provides an iliac prosthesis, comprising: a prosthesis main body, the prosthesis main body including a first end portion contacted and matched with a sacrum and a second end portion contacted and matched with an acetabulum, a first screw hole being formed in the first end portion, a first screw seat being arranged in the first screw hole, the screw-rod structure including a connecting seat and a rod body, the connecting seat being connected with the prosthesis main body, and the rod body being fixed on the connecting seat; and an anti-dropping mechanism, the anti-dropping mechanism being arranged between the prosthesis main body and the connecting seat in a clamping manner. The technical solutions of the present disclosure can effectively, solve the problems of, unreliable supporting and easy fatigue break of the screw-rod system in the related technology.

A femoral hip joint spacer. The spacer has a prosthesis body with a ball head, a neck, a stem and an anchoring sleeve which encloses the stem on a proximal side of the stem with a circumferential fastening area, irrigation liquid inlet and outlet openings in the body surface, at least one irrigation liquid discharge opening on a distal side of the stem and at least one irrigation liquid intake opening on the ball head or on the neck. The discharge opening is connected in a liquid-permeable manner to the inlet opening but not to the outlet opening and the intake opening is connected inside the prothesis body in a liquid-permeable manner to the outlet opening but not to the inlet opening. A cavity open on two sides is formed inside the anchoring sleeve and connects a proximal side to a distal side of the sleeve in a liquid-permeable manner.

An orthopaedic surgical instrument system includes a first broach including a first end configured to be separately secured to a handle and a tapered body having a plurality of cutting teeth defined therein, and a second broach including a first end configured to be separately secured to the handle in place of the first broach, a first tapered body extending distally from a second end positioned opposite the first end, and a second tapered body extending distally from the first tapered body. The tapered body of the first broach and the first tapered body of the second broach have a first outer geometry and the second tapered body has a second outer geometry different from the first outer geometry.

A surgical implant with recesses adapted to capture fixation medium that extravasates during implantation. The implant includes an elongated stem having a distal tip configured for insertion into an implant receiving area of a patient. A collar having recesses for capturing extravasating fixation medium is attached on the stem. The collar can be fixed to the stem by a separable collar-engagement feature or the collar can be fixed to the stem via structures on the stem.

Exemplary embodiments are directed to an augment and methods of implanting an augment. The methods include inserting the augment into a bone cavity of a bone of a host. The augment includes a body with an outer surface and at least one hole preformed in the body. The method includes introducing a fastener from an outer surface of the bone into a hole formed in the bone and engaging the fastener with the hole of the bone. The method includes passing the fastener through the hole of the bone. The method includes introducing into and engaging the fastener with the at least one hole in the body of the augment to fixate the augment within the bone cavity.

Methods and systems of augmenting an implant intraoperatively and preparing a cone for revision surgical procedure are disclosed. A system includes a cutting device, a tracking and navigation system and a cutting system in operable communication with the cutting device and the tracking and navigation system. The cutting device includes a communication system, a cutting element, and a plurality of optical trackers. The tracking and navigation system is configured to detect a location of optical trackers. The control system is configured to cause the tracking and navigation system to detect the location of the cutting device, determine a revised shape for an implant cavity, cause the cutting device to cut the implant cavity to the revised shape, select a shape for a cone to be placed in the revised implant cavity, and machine the cone to the selected shape.