Embodiments are directed to an expandable spacer for insertion between two adjacent bony structures or two adjacent joint surfaces, and more particularly relate to an expandable spacer for insertion into the void remaining in the intervertebral space. Embodiments may include an expandable spacer comprising a first endplate; a second endplate spaced from the first endplate; and one or more bags disposed between the first endplate and the second endplate that couple the first endplate to the second endplate. The one or more bags may be configured to receive a filler material to expand the expandable spacer from an initial position having a first height to an expanded position having a second height, wherein the second height is greater than the first height.

Expandable spinal interbody implants include a body and at least one extendable support element connected thereto. Such an implant may include a second extendable support element and a tool selectively positionable with respect to the implant so as to independently or simultaneously expand both extendable support elements. In another example, such an implant may include, at each of a first and second location, a respective movable member and a respective locking element. The at least one extendable support element may be actuatable to expand so as to induce movement of at least one of the movable members away from the body. The locking elements at each of the first and second locations may be selectively lockable such that, when locked, the locking element restrains movement of the associated movable member at that location away from the body without restraining movement of the other movable member away from the body.

A tunable implant, system, and method enables a tunable implant to be adjusted within a patient. The tunable implant includes a securing mechanism to secure the implant in the patient, a actuation portion that enables the implant to move and an adjustment portion that permits adjustment of the implant after the implant has been positioned within the patient. The method of adjusting the tunable implant includes analyzing the operation of the implant, determining if any adjustments are necessary and adjusting the implant to improve implant performance. The implant system includes both the tunable implant and a telemetric system that is operable to telemetrically receive data from the tunable implant where the data is used to determine if adjustment of the tunable implant is necessary. The system also includes an instrument assembly that is used for performing spinal surgery where the instrument assembly includes a mounting platform and a jig.

Systems, methods, and apparatuses for relieving upper airway obstructive breathing in a patient are disclosed. In some implementations, the apparatus comprises first and second pivot devices anchored to a mastoid bone and a mandible bone, respectively; an implant positioned between the first and second pivot device, the implant comprising a first end coupled to the first pivot device and a second end coupled to the second pivot device; an inactive position, the inactive position enabling a posterior displacement of the second end relative to the first end; an active position, the active position preventing posterior displacement of the second end relative to the first end, and anteriorly positioning the second end relative to the first end; and an activation mechanism enabling transition between the inactive position and the active position, and vice versa.

A joint replacement system includes an insert configured to be disposed on a surface of an articular limb joint, and a condyle configured to contain a biocompatible fluid and to be disposed on an opposing surface of a limb joint, wherein the condyle and the insert are aligned to enable articulation of the limb joint.

Technologies related to tumid implants and pumps are generally described. In some examples, a tumid implant device may comprise an enclosed sack membrane adapted to fit between bones in a joint. Articulation of the joint may cause a first layer of the membrane to move through a first boundary section into a second layer of the membrane, while the second layer moves through a second boundary section into the first layer. A working fluid may be disposed inside the sack membrane, and a reservoir may optionally be coupled to the membrane via a gate. The working fluid may be expelled from the sack membrane into the reservoir, and may re-enter the sack membrane from the reservoir in response to changes in pressure in the joint. The working fluid may be conducted into the reservoir or sack membrane by a pump, and several artery pump designs are disclosed.

An orthopedic implant with an inferior portion having a tibia contact surface configured to extend over a tibia; a superior portion opposite to the inferior portion having a tendon contact surface configured to change a position of a patellar tendon by lifting or tilting the patellar tendon when the curved surface of the first portion is engaged with the tibia; a fixation mechanism adapted to attach the orthopedic implant to the tibia; and an adjustment mechanism adapted to change a distance between the tendon contact surface and the tibia contact surface. The invention also includes a method for repositioning a patellar tendon of a patient.

A prosthetic stem is configured to reduce the perioperative and intraoperative risk of catastrophic medical complications and death that may be caused by BCIS. The prosthetic stem includes one or more internal channels that are configured to self-regulate intramedullary pressure within a prepared bone channel as the stem is inserted into the channel, thus reducing the likelihood of BCIS without sacrificing biomechanics and maintaining a reliable and repeatable implantation process. The stem includes a head and a body, wherein the head is configured to serve as a joint replacement and the body is configured for insertion into the prepared bone channel of a patient. One or more internal channels in the stem are configured to control the pressure within the prepared bone channel during insertion of the stem into the channel, particularly by forming a path through which excess cement may flow as the stem proceeds into the prepared bone channel. By so limiting pressurization of cement during this process, the risk of BCIS complications and other potential harmful effects are reduced while still maintaining sufficient fixation of the prosthetic stem in the prepared bone channel.

A temporomandibular joint replacement system includes an insert configured to be disposed on an articular surface of a temporomandibular joint, a biocompatible fluid including a synthetic synovial fluid, a porous condyle configured to contain the biocompatible fluid and to be disposed on an opposing surface of the temporomandibular joint, and a sensor disposed along a top surface of the insert.

Systems, methods and apparatuses including an insert having a body with a plurality of bladders therein, a proximal surface and a distal surface. Two or more of the plurality of bladders are in fluid communication with one another. The plurality of bladders are expandable and contractible in volume. The proximal surface shapable by a change in the volume of one or more of the plurality of bladders. The proximal surface is configured to interface with a first arthroplasty implant of the patient. The distal surface is spaced from the proximal surface by the body and is configured to interface with a second arthroplasty implant of the patient.