An implantable medical device for implantation in a hip joint of a human patient is provided. The medical device comprises: at least one artificial hip joint surface adapted to replace at least the surface of at least one of the caput femur and acetabulum. At least one artificial hip joint surface comprises: a positioning hole with at least one opening in said at least one artificial hip joint surface. The hole is adapted to be placed and dimensioned such that the medical device is adapted to be fitted using a positioning shaft and at least partly surround the shaft, for positioning the at least one artificial hip joint surface in a desired position in the hip joint. The hole is adapted to be fitted using the positioning shaft, when the shaft is stabilized and placed in at least one of the femoral bone and the pelvic bone for positioning said medical device inside the hip joint.

An implant that couples a first bone and a second bone includes a body that defines a first joint surface, a second joint surface, and a median plane. The first joint surface includes a first central region that articulates with the first bone. The second joint surface includes 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. The first joint surface further defines a first peripheral region adjacent the first central region and the first axial segment has a first cross section that has a smaller curvature in the first central region of the first joint surface than in the first peripheral region of the first joint surface.

Techniques for implantable orthopedic pain management devices are disclosed, including incising an opening in a synovial capsule substantially surrounding a joint, using a first tool to form an enlarged opening in the synovial capsule, determining whether to modify the joint, the joint being modified using a second tool if a bone structure coupled to one or more bones is found within the joint and the bone structure is configured to limit articulation of the one or more bones when an implantable device is inserted into the synovial capsule and the joint, and inserting the implantable device into the synovial capsule through the enlarged opening, the implantable device being inserted into the joint using a third tool.

Techniques for implantable orthopedic pain management devices are disclosed, including a body having a body configured to be disposed in a cavity between a first toroidal shape and a second toroidal shape, the body being substantially saddle-shaped and configured to have a first saddle surface aligned on a first axis and a second saddle surface aligned on a second axis, and a channel formed on the body comprising a portion of the first saddle surface and another portion of the second saddle surface.

Techniques for implantable orthopedic pain management devices are disclosed, including a saddle configured to axially align a top contoured surface to a bone surface and to axially align a bottom contoured surface to another bone surface, and a peripheral protrusion disposed on a peripheral surface of the saddle, the peripheral protrusion being configured to maintain dynamic stability of the saddle between the bone surface and the another bone surface.

Systems and methods for opposing abnormal motion of an adjacent bone are provided. One exemplary embodiment of a surgical method includes delivering and securing a bone barrier to a bone bed of a glenoid such that at least a portion of the bone barrier extends laterally beyond the bone bed and can oppose, prevent, and/or reduce abnormal motion of an adjacent bone (e.g., a humeral head). The bone barrier can be secured along a periphery of a glenoid of a shoulder. More particularly, the bone barrier can be placed and secured such that at least a portion of the bone barrier extends laterally over the glenoid and can oppose abnormal motion of the humeral head. In some embodiments at least one suture anchor and suture can secure the bone barrier to the bone bed.

A proposed treatment of arthrosis/osteoarthritis in a joint of a mammal or human patient involves deposing a liquid material on at least one damaged surface of the joint. To accomplish this, a reservoir (110) is provided, which holds a volume of a biocompatible material in liquid form outside of a body containing the joint (J) to be treated. A proximal end (P) of a tube-shaped instrument (120) is connected to the reservoir (110), and a distal end (D) of the instrument (120) is inserted into the joint (J). The liquid material is fed through the instrument (120) to the distal end (D) for deposition on the at least one damaged joint surface. The material is configured to assume a solid form under predefined conditions (e.g. when cooling off, or being exposed to a specific type of radiation). When the material has the solid form, it has a resistance to wear adapted to replace a worn out joint surface.

A meniscus replacement device for replacing damaged soft tissue at a host knee includes a first component comprising a first tissue-interface surface shaped to free-floatingly interface with tissue structure of one of a femur and a tibia in a knee joint having a damaged soft tissue, and comprises a second component comprising a second tissue-interface surface shaped to free-floatingly interface with a second tissue structure of the other of the femur and the tibia in the knee joint. The second component may include a containment cavity receiving at least a portion of the first component. In another form, the free floating soft joint tissue replacement component and the base component are fixed together. In some aspects, the second tissue-interface surface is shaped to fit contours of a natural tibia plateau. In some aspects, the first tissue-interface surface is shaped to fit contours of a femoral surface.

Photodynamic devices for replacement of an articular head of a bone are provided. In an embodiment, a photodynamic device includes a photodynamic support member and an articular member attachable, either fixedly or removably, to the photodynamic support member and having a bearing surface. In an embodiment, the articular member includes a recess designed to receive the photodynamic support member. In an embodiment, the photodynamic support member includes an opening into which a shaft of the articular member can be inserted to attach the articular member to the photodynamic support member.

Expandable prosthetic devices used for treating a variety of conditions, including rotator cuff injuries, broken and/or depressed bone fractures, infection and/or inflammation in the body. In one embodiment, a prosthesis includes an implant having a pressure regulating valve. The implant is capable of being positioned between a first tissue and an opposing second tissue in a void space and of deforming under pressure in response to articulation of a joint. The pressure regulating valve is configured to open based on a predetermined pressure in the implant.