An artificial cartilage is provided whereby a fixed negative charged hydrogel has been infused within a restrictive swelling network, which limits and restricts the thickness of the artificial cartilage. At least 60% of the volume of the artificial cartilage is composed of the restricted and swollen hydrogel. The restrictive swelling network restricts the hydrogel to swell not more than 10% with respect to its maximum swelling capacity, i.e. a swelling capacity to swell 10-fold more is retained. The hydrogel within the restrictive swelling network has an equilibrium stiffness between 0.5 and 2 MPa to resist external loads applied to the top surface layer or the bottom surface layer of the artificial cartilage. The hydrogel has a fixed negative charge density of 0.17 to 0.23 mEg/ml and is capable of swelling between 2-15 times compared to the volume of the hydrogel without being restricted.

A cartilage repair implant, an auxiliary surgical tool kit and a cartilage repair system are provided. The cartilage repair implant includes a body and a plurality of pins. The body is a porous structure and is configured to carry cartilage repair material. The pins are fixed to the body for being inserted into a patient's bone. The auxiliary surgical tool kit includes a positioning sleeve and a click tool. The positioning sleeve has a through passage. A first alignment structure is disposed on the sidewall of the through passage. The click tool includes an outer tube and a push rod. A second alignment structure mutually aligned with the first alignment structure is disposed on the outer wall of the outer tube. The outer tube is configured to pass through the through passage. The push rod is slidably disposed in the outer tube. One end of the outer tube has a shaping blade for slicing a to-be-implanted region on an affected area of the patient. In which the shape of the to-be-implanted region is corresponding to the shape of the body.

Methods for preparing a bone in surgery using an imaging system, a navigation system having a locating device, and a robotic system having a cutting tool. A cannula is guided into an incision to expand the incision and provide access to the bone so that the cutting tool is insertable through the cannula to remove material from the bone. An implant is insertable through the cannula to be placed in the bone.

Present invention relates to an orthopedic implant having a bone anchoring part comprising a polymer composition comprising a biostable thermoplastic polyurethane (TPU) and 15-70 mass % of inorganic particles comprising zirconia. It was found that this relatively rigid anchoring part allows inserting an implant into a pre-drilled bone hole to form a firm and durable connection to bone, which may be visualized with for example X-ray or MRI methods. The thermoplastic polyurethane composition shows favorable properties, and offers freedom in design and dimensioning of the implant, and in making the implant with common techniques like injection molding. Especially if the implant comprises a cartilage replacing part made from a resilient thermoplastic material compatible with the polyurethane-zirconia composition, like a more flexible TPU composition, the implant may be made with a 2-component injection molding technique. In other aspects, the invention relates to a method of making said orthopedic implant comprising a bone anchoring part with a multi-component injection molding process. The invention further relates to a surgical kit of parts comprising orthopedic implants of the invention, and to the use of an implant or a surgical kit of the invention in orthopedic surgery.

A method for reattaching a detached tissue to a hard tissue includes operation in which a suture anchor having a first stitch and a second stitch is provided, wherein the first stitch is divided into a first strand and a second strand, and the second stitch is divided into a third strand and a fourth strand. The suture anchor is fixed on a hard tissue. The first strand, the second strand, the third strand and the fourth strand pass through a detached tissue. A bioinductive patch is provided, wherein the bioinductive patch includes a patch body and a button. The first strand and the third strand pass through the patch body and a first suture hole of the button, and the second strand and the fourth strand pass through the patch body and a second suture hole of the button. The second strand and the third strand are knotted to form a first strand node, and the first strand node presses the bioinductive patch and the detached tissue tightly onto the hard tissue.

A bioinductive patch includes a patch body and a button. The patch body has an inner space. The button is disposed in the inner space of the patch body. A method for manufacturing a bioinductive patch includes step in which a patch body having an inner space is provided. The method continues with step in which a button is disposed in the inner space of the patch body.

A bioinductive patch includes a patch body and a button. The patch body has an inner space. The button is disposed in the inner space of the patch body. A method for manufacturing a bioinductive patch includes step in which a patch body having an inner space is provided. The method continues with step in which a button is disposed in the inner space of the patch body.

An implant and methods for use in various procedures are disclosed. According to an example of the present application, an orthopedic implant is disclosed. The implant can include a base and a body. The base can comprise a porous metal material configured to encourage bone ingrowth into the base. The body can be coupled to the base and can comprise a second material that differs from the porous metal material of the base.

A multicomponent implant system includes a multicomponent implant comprising a base plate and a load plate. The base plate includes a bone facing surface and a base plate interface surface. The load plate includes a load plate interface surface and a load bearing surface, the load bearing surface being substantially parallel to the load plate interface surface and having a contour substantially corresponding to a contour of a removed portion of the articular surface. Both the load plate interface surface and base plate interface surface have a contour substantially corresponding to the contour of the load bearing surface. The load plate is configured to be advanced in an arcuate direction to slidably couple the load plate to the base plate after the base plate has been secured within the first excision site by an anchor.

Cellulose-reinforced hydrogels may include a cellulose nanofiber network and an interstitial hydrogel portion within interstitial regions of the cellulose nanofiber network, the interstitial hydrogel portion comprising polyvinyl alcohol (PVA), wherein the hydrogel component has a crystallinity of 20% or greater.