A prosthesis for replacing a natural articular surface on a bone may have a joint facing side with an articular surface, a bone anchoring side with a bone engagement surface, and a bone engagement pad secured to at least part of the bone engagement surface. The bone engagement pad may have a transverse portion extending transverse to a length of the bone, and one or more protruding portions extending generally perpendicular to the transverse portion. The transverse portion may have a pad bone-facing surface with a first porosity level, and a pad joint-facing surface on an opposite side of the transverse portion from the pad bone-facing surface, with a second, lower porosity level. The bone engagement surface may be formed via a first manufacturing process selected from the group consisting of forging, milling, and casting. The bone engagement pad may be formed via an additive manufacturing process.

A meniscus tear repair sling device has a collagen membrane having a first end portion and a second end portion. The first end portion is configured to pass under a tear in a meniscus and wrap over and above the tear and extend past the meniscus and overlay the second end portion thereby enveloping a portion of the meniscus with a tear and forming the sling device. The first end portion and the second end portion form exposed overlying tails extending external of a knee joint. The tails are configured to be affixed to a portion of a tibia. The tails when tensioned close the tear by providing a lateral strain on the torn meniscus when the tails are affixed to a tibia adjacent the knee joint.

A method for producing a collagen meniscus implant by obtaining a freshly excised non-human meniscus, rinsing it in an aqueous solution, drying the rinsed meniscus, shaping it to approximate in dimension an average-sized human meniscus, extracting non-collagenous material from the shaped meniscus, and sterilizing it, yielding a collagen meniscus implant containing at least 90% by weight of type I collagen, less than 0.5% by weight of glycosaminoglycan, and less than 600 ppm DNA. Also disclosed is a collagen meniscus implant prepared by the above method. Further provided is a biocompatible and bioresorbable porous implant for meniscus repair. The implant includes a three-dimensional network of collagen fibers oriented in a direction approximating the collagen fiber orientation of a human meniscus. The implant has a size and a contour substantially equivalent to a human meniscus, and has a chemical composition similar to the above-described collagen meniscus implant.

An orthopaedic system includes an insert defining an anterior-posterior centerline and including: a medial half on one side of the centerline and defining a medial shape, the medial half having a medial articular surface defining a medial dwell region; and a lateral half on an opposite side of the centerline and defining a lateral shape that differs from the medial shape, the lateral half having a lateral articular surface. A femoral component includes a medial condylar portion bearing on the medial articular surface and a lateral condylar portion bearing on the lateral articular surface. The insert is configured to substantially limit medial anterior-posterior translation on the femoral component and define a pivot axis that extends through the medial dwell region. The insert is configured such that rotation of the lateral articular surface follows an arcuate path about the pivot axis.

A joint spacer, in particular a knee spacer and a hip spacer is provided which is long-lasting and is sufficiently cushioned and abrasion-resistant and which can also support locally very high loads. A method for treating osteoarthritis by inserting a disk-shaped member into a joint of a patient is also disclosed.

Systems (500, 1000) and methods (1700) for fabricating a soft tissue implant (100, 400). The methods generally involve: receiving implant data representative of the target implant; determining a planned weaving path for forming the soft tissue implant; and communicating the planned weaving path to an output device.

A system for replacing a portion of an articular surface including providing an implant site and installing an implant into the implant site. The implant site includes a first and a second excision site which at least partially intersect with one another. Each of the first and second excision sites are formed by providing a respective axis and excising a portion of the articular surface relative to the respective axes.

An artificial meniscus using a thermoplastic for the base material, which is reinforced with an inert material. In a preferred embodiment, the reinforcement is provided by Kevlar® fibers, and the matrix is made out of polycarbonate-urethane (PCU). In an alternate embodiment, the PCU can also be surrounded by a polycaprolactone (PCL) scaffold that is infused with human growth proteins so that when the artificial meniscus is implanted, stem cells in the body are stimulated to ensure the meniscus is properly secured.

An implant couples a first bone of a hand to a second bone of the hand. The implant includes a body that defines a median plane. The body also defines a first joint surface having a first central region that articulates with the first bone. The body further defines a second joint surface having a second central region that articulates with the second bone, and the second central region is disposed on an opposite side of the median plane of the body relative to the first central region. The first and second central regions correspond to profiles of first and second axial segments, respectively, the first and second axial segments are each one of a cylinder, a cone and a torus and are centered on first and second axes, respectively, and the first and second axes, as projected on the median plane, are substantially perpendicular to each other.

Methods of selecting and implanting prosthetic devices for use as a replacement meniscus are disclosed. The selection methods include a pre-implantation selection method and a during-implantation selection method. The pre-implantation selection method includes a direct geometrical matching process, a correlation parameters-based matching process, and a finite element-based matching process. The implant identified by the pre-implantation selection method is then confirmed to be a suitable implant in the during-implantation selection method. Methods of implanting meniscus prosthetic devices are also disclosed.