The invention provides a reticular fixation system and method for an articular cartilage. The system comprises an articular cartilage repair surface locator, a temporary fixation kirschner wire, a depth-control guide wire, a percussion device and a cartilage fixing piece. The method comprises: repositing an injured articular cartilage; placing a locator on a surface of the injured articular cartilage; fixing the locator to the articular cartilage and the bone temporarily; punching the fixing piece wire tunnels on the articular cartilage and the bone in a fixing piece guide channel of the locator; placing the fixing piece into a fixing piece wire guide channel; percussing a fixing piece nail into the tunnels of the articular cartilage and the bone; removing the temporary fixation kirschner wire; implanting a second fixing piece nail, and completing the articular cartilage repair. The invention can improve convenience and reliability of fixation of the injured cartilage.

Various joint replacements are disclosed herein, as are methods of use thereof. The joint replacements can have a flexible band or multiple flexible bands that can link together a first part of the joint replacement and a second part of the joint replacement. The flexible band or bands can be tensioned to establish proper tension in the patient's joint. In certain circumstances, the joint replacement can be a shoulder joint replacement.

The improved endoprosthetic device surface treatment encourages soft tissue attachment thereto. A porous mesh surface treatment creates on an outer surface of the endoprosthetic device a three-dimensional surface structure similar to cancellous bone. Suture attachment features are provided at various locations around the treated surface structure to initially affix a vascularized soft tissue to the treated surface. As the patient heals the soft tissue grows and infiltrates the porous mesh surface to achieve an attachment strength substantially equal to the surrounding tissue.

An implant (20), prosthesis and method of use are described. The implant comprises an articulation component (24) having a bearing surface (60) and a reverse surface (62) arranged to couple to a proximal neck portion (26) of an arthroplasty implant (22) coupled to a bone. A collar (28) is arranged to couple to the reverse surface of the articulation component. The collar defines a neck hole (70) arranged to pass around the coupling between the articulation component and the proximal neck portion of the arthroplasty implant. The collar and the articulation component comprise complementary coupling features to secure the collar to the articulation component. The collar further comprises a plurality of attachment portions (74) to couple the collar to bone fragments or soft tissues. The prosthesis comprises the implant and an arthroplasty implant having a distal portion arranged to be coupled to an end of a long bone and a proximal neck portion.

The aim of the invention is to restore the mobility of an articular end (2) of a bone (3) of a patient by means of a reconstruction implant. This implant (1), which permits reconstruction both of bone and of cartilage, comprises a grated framework (10) and a sheet (20) made of a biological tissue material, this sheet firmly covering one face (11) of the framework, while the opposite face (12) is designed to be pressed rigidly against, and firmly joined to, the end of the bone.

A knotless tensionable fixation system may be utilized for performing surgical methods for repairing tissue defects within a joint. An exemplary surgical method may include fixating a graft over top of the tissue defect with the knotless tensionable knotless fixation system. The knotless tensionable fixation system may include a plurality of knotless suture anchors, the graft, and a reinforcement construct. The reinforcement construct may establish a fixed segment of material over the graft after being secured in place by the plurality of knotless suture anchors.

An prosthetic implant replaces hyaline cartilage in a synovial joint with a flexible polymer sliding surface, preferably of hydrogel, on a segmented support with an array of adjacent segments to which the hydrogel is molded. Adjacent segments are laterally and angularly displaceable permitting the implant to conform to rounded or irregular surfaces or to be rolled or folded for arthroscopic placement. Tension cables threaded through segments along a circuit can cinch segments together for stiffening the supporting layer and/or the cable can pull the implant against a bone surface. Adjacent segments can have inter-engaged structures. In some embodiments the segments are carried on a flexible foil or fibrous sheet.

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.

A prosthetic implant replaces hyaline cartilage in a synovial joint with a flexible polymer sliding surface, preferably of hydrogel, on a segmented support with an array of adjacent segments to which the hydrogel is molded. Adjacent segments are laterally and angularly displaceable permitting the implant to conform to rounded or irregular surfaces or to be rolled or folded for arthroscopic placement. Tension cables threaded through segments along a circuit can cinch segments together for stiffening the supporting layer and/or the cable can pull the implant against a bone surface. Adjacent segments can have inter-engaged structures. In some embodiments the segments are carried on a flexible foil or fibrous sheet.

A method of repairing a fractured bone may include implanting a prosthetic stem into an intramedullary canal of the fractured bone. First and second bone segments of the fractured bone may be robotically machined to include first and second implant-facing surfaces that are substantially negatives of first and second surface portions of the first end of the prosthetic stem. The first and second tuberosities may be machined so that the first and second bone segments have first and second interlocking surfaces shaped to interlock with each other. During implantation, the first and second implant-facing surfaces are in contact with the first and second surface portions of the first end of the prosthetic stem, and the first interlocking surface interlocks with the second interlocking surface.