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 tub e-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 medical device for treating hip joint osteoarthritis by providing a joint surface is provided. The medical device comprises at least two artificial hip joint surface parts, wherein said at least two artificial hip joint surface parts are adapted to be connected to each other to form an artificial hip joint surface during an operation. Furthermore a method of treating a hip joint of a human patient by providing said the medical device is provided. The hip joint comprising a caput femur and an acetabulum, the method comprises the steps of: cutting the skin of said human patient, dissecting an area of the pelvic bone on the opposite side from said acetabulum, creating a hole in said dissected area, said hole passing through said pelvic bone and into said hip joint of said human patient, and providing said medical device to said hip joint, through said hole in said pelvic bone of said human patient.

A joint spacer is provided for treatment of a joint of a human subject, the joint spacer including a pouch having a wall including a dermal graft material. The joint spacer is configured to be inserted into a space of the joint, and is shaped, when the pouch is inserted into the space and filled, to provide mechanical support to the joint. Other embodiments are also described.

An implant system for implantation at a joint, the implant system including an implant device, the implant device comprising a body portion having first and second ends, and a first elongate member, extending from the first or second end of the body portion, the implant system further comprising a corresponding fixation device for securing the first elongate member to a subject, the fixation device comprising at least one latching element, the first elongate member comprising at least one cooperating element, the at least one cooperating element being capable of cooperating with said at least one latching element of the fixation device in use.

A bone cage may include first and second spaced apart frames defining a bone ingrowth cavity therebetween, a plurality of first protrusions each having a proximal end coupled to the first frame and a distal end extending into the cavity toward the second frame but not contacting the second frame, and a plurality of second protrusions each having a proximal end coupled to the second frame and a distal end extending into the cavity toward the first frame but not contacting the first frame. Furthermore, the distal ends of the first protrusions may be laterally offset from the distal ends of the second protrusions.

An implantable medical device for implantation in a mammal joint having at least two contacting surfaces is provided. The medical device comprises; an artificial contacting surface adapted to replace at least the surface of at least one of the mammal's joint contacting surfaces, wherein the artificial contacting surface is adapted to be lubricated, when implanted in said joint. Furthermore the medical device comprises at least one inlet adapted to receive a lubricating fluid from a reservoir, at least one channel at least partly integrated in the artificial contacting surface in connection with the at least one inlet for distributing the lubricating fluid to the surface of the artificial contacting surface. The medical device could be adapted to be operable by an operation device to receive the distributed lubricated fluid from a reservoir.

A sinus tarsi implant for the purpose of stabilizing and restoring motion between the talus and calcaneus while allowing normal motion and alignment. In a preferred embodiment, the implant is composed of a titanium alloy that is a combination of a cylindrical portion and an axially connected conical portion. The cylindrical portion has a surface with multiple parallel grooves that are each parallel to the transverse axis of the cylinder. The grooves are uniquely shaped with a perpendicular medial side and an angled lateral side. The implant is cannulated to enable use of a guide wire that insures proper alignment during insertion.

An implant system for implantation at a joint, the implant system including an implant device, the implant device comprising a body portion having first and second ends, and a first elongate member, extending from the first or second end of the body portion, the first elongate member being insertable in a bone tunnel in a subject's tibia.

A medical device for treating hip joint osteoarthritis by providing a joint surface is provided. The medical device has at least two artificial hip joint surface parts adapted to be connected to each other to form an artificial hip joint surface during an operation. A method of treating a hip joint of a human patient by providing the medical device is also provided. The method includes cutting the skin of the human patient, dissecting an area of the pelvic bone on the opposite side from the acetabulum, creating a hole in the dissected area passing through the pelvic bone and into said hip joint and providing the medical device to the hip joint, through the hole in the pelvic.