Abstract: Intervertebral spacer assemblies, systems, and methods thereof. A method of insertion includes inserting an intervertebral spacer and plate together using an insertion tool and, upon removal of the insertion tool, the intervertebral spacer and plate are no longer considered connected/coupled and act as separate components.

Abstract: A bone screw includes a tubular body including a wall having a bone thread in at least a portion of an outer portion of the wall, an open first end and a second end. A plurality of cutting teeth is provided at the open first end, and a head is provided at the second end. An insert in the tubular body is configured to guide a wire therethrough.

Abstract: A surgical instrument suitable for preparing an intervertebral disc space includes an outer sleeve, an instrument head, an inner shaft, a handle, a universal joint, a coupling member, and a drive mechanism. The outer sleeve includes a proximal end, a distal end and a longitudinal axis. The instrument head defines a longitudinal axis and is disposed at the distal end of the outer shaft. The inner shaft is slidably disposed within the outer sleeve and includes a proximal end, a distal end and a longitudinal axis coaxially aligned with the longitudinal axis of the outer sleeve. The drive mechanism is coupled between the outer sleeve and the inner shaft and actuates the outer sleeve axially relative to the inner shaft, thereby setting an angle of the longitudinal axis of the instrument head in relation to the longitudinal axis of the inner shaft.

Abstract: An inflatable bone tamp is provided that includes a shaft with proximal and distal portions and a central longitudinal axis. A balloon is attached to the shaft such that a material can flow through the shaft and into the balloon to inflate the balloon. A flow controller controls the flow of the material through the shaft and into the balloon. Kits, systems and methods are disclosed.

Abstract: A bone screw, for drawing first and second bone fragments together, includes a shaft having a distal section and a proximal section. The distal section has a first external male screw thread and a minor diameter. The proximal section has a second external male screw thread. A major diameter of the distal section is larger than a major diameter of the proximal section. The bone screw includes a sleeve that has an internal female screw thread configured to mate with the second male screw thread. A distal portion of the sleeve has an outer diameter. The outer diameter is equal to or smaller than the minor diameter of the distal section of the shaft.

Abstract: The present application relates to adaptive surface surgical guiding apparatuses. A surgical guiding apparatus may include one or more rigid portions configured to attach to a first region of an underlying anatomical surface. The surgical guiding apparatus may further include a variable deformable portion coupled to the one or more rigid portions, the variable deformable portion configured to conform to a shape of a second region of the underlying anatomical surface to provide a stable attachment of the surgical guiding apparatus to the underlying anatomical surface. The present disclosure further provides methods for manufacturing surgical guiding apparatuses and uses of the apparatuses for placement onto an underlying anatomical surface.

Abstract: The implant fixation systems disclosed herein include an implant manufactured with, or coupled to, one or more implant fixation devices used to secure the implant to bone. Various implant fixation device embodiments have an engagement element with a concave engagement tip, a guiding element defining a planned trajectory along which the engagement element is configured to move, and an adjustment element configured to move the engagement element along the planned trajectory. Moving the engagement element along the planned trajectory causes the concave engagement tip to enter a bone in a first position and rotate within the bone to a second position. Continuing to move the engagement element along the planned trajectory may cause the concave engagement tip to undergo translational movement from the second position to a third position, thereby pulling the implant towards the bone and exerting compression forces on the bone.

Abstract: A surgical bone holding implement for manipulating a bone, comprising a handle and an elongated shaft including a bone engaging tip. The handle is positionable with respect to the elongated shaft between first and second positions, for mounting a drill member on the proximal end of the elongated shaft in one position, and for manipulating the bone by means of the handle in a second position.

Abstract: The medial compartment is realigned by adjusting the angle of the ulna so that the head end thereof is properly aligned with the humerus. The angle of the ulna is adjusted by cutting the ulna below the head. A plate is attached to the ulna to set the new angle. The plate has two parts; one part is straight, the other is angled. Different plates have parts with different angles. A plate with a desired angle is selected to achieve the necessary angle on the ulna. The plate may be attached to the medial side or lateral side of the ulna.

Abstract: A device (1) for use in the surgical treatment of a patient suffering from funnel chest characterized in that it comprises a plate adapted to be fitted underneath the skin of the patient, and further characterized in that, in use, said plate can be attached to the patient's sternum and the curvature, length and width of the plate being such that the plate extends on both sides of the sternum and on the outside of the patient's thorax and is supported by the ribs to hold up the sternum.

Abstract: A surgical system includes an implant having a first attachment mechanism and an insertion instrument having a proximal end, a distal end, and a second attachment mechanism disposed at the distal end for removable connection with the first attachment mechanism. The proximal end of the insertion instrument is pivotable with respect to the implant. The insertion instrument can include an inserter and a guide. A method of using the surgical system is provided.

Abstract: Fusion plates and interbody fusion devices have been developed that contain slots to allow the use of pins to position and to guide the placement of the plate while the screws are being secured, reducing the likelihood of improper placement and localization of the plate and screws. The slots contain ridges formed of a plurality of teeth that are configured to engage with corresponding ridges and teeth on the shaft of a distraction pin. After the plate is placed over the distraction pins, the plate is immobilized in the inferior and superior directions and also in the anterior-posterior direction even prior to placement of the bone screws in the plate. Optionally, the pins may be compressed together to apply compression to the vertebra prior to placement of the bone screws.

Abstract: A hybrid bone plate has a first plate portion, having a first top surface and a first bottom surface and comprises a hard titanium alloy. A second plate portion has a second top surface and a second bottom surface and comprises a pure titanium or a soft titanium alloy. The first plate portion has a higher material yield strength than the second plate portion. The first plate portion and the second plate portion are connected to each other at a transition region by for example welding wherein in the transition region the first top surface and the second top surface together form a closed top integral surface and the first bottom surface and the second bottom surface together form a closed bottom integral surface.

Abstract: An adjustable spine distraction implant alleviates pain associated with spinal stenosis and facet arthropathy by expanding the volume and/or cross sectional area in the spinal canal and/or neural foramen. The adjustable implant provides a spinal extension inhibitor. The implant includes elliptical or oval shaped adjustable member or spacer for positioning between and adjustably spacing apart the spinous processes.

Abstract: The present invention is directed at minimally invasive systems in which the proximal end portion of the working channel has either zero or a limited range of movement in the lateral direction. A first embodiment has a slidable collar attached to a pair of flanges, wherein movement of the collar is bounded by an annular frame. A second embodiment has a substantially spherical element attached to the tube. A third embodiment has a plurality of caps. A fourth embodiment is adapted for a larger working channel.

Abstract: An arthrodesis anchor as a monolithic piece has prongs supporting barbs extending radially therefrom. A neck between the ends may be angled to accommodate final alignment of resected surfaces of joints to be bonded. The neck may receive a tool for buttressing a first inserted end against further penetration into a joint while the second inserted end is inserted into the other adjacent joint. The proximal and intermediate phalangeal joints may be trimmed and pilot drilled, and may be broached with or without a k-wire guide. A first end may be inserted by a tool, typically into the proximal joint, but the order may be reversed. The second end may then be inserted into a pilot in the base of the intermediate joint.

Abstract: A surgical instrument having a first assembly with a first radio-opaque portion providing a profile of a first portion of an intramedullary implant or canal in a bone, and a second assembly having a second radio-opaque portion providing a profile of a second portion of the intramedullary implant or canal. The surgical instrument may also include a third radio-opaque portion providing an alignment feature to provide a fluoroscopic planar check for the surgical instrument.

Abstract: A bone cutting guide for osteochondral transplantation, including a cutting guide block having a distal portion and a posterior portion, said distal portion having a distal cutting guide slot disposed therethrough, said posterior portion having a posterior cutting guide slot disposed therethrough; a plurality of condylar rails attached to said cutting guide block; a tower cutting guide disposed superior to said cutting guide block and having at least one cutting guide track disposed at an angle of between 0 and 180 degrees in relation to the angle of said posterior cutting guide slot; and fixation structure for attaching said cutting guide block and said tower cutting block to bone.

Abstract: An intervertebral disk prostheses for the total replacement of an intervertebral disk of the lumbar and cervical spine has an upper plate having upwardly projecting formations anchoring it to an upper vertebra on its upper face and a concavity on its inner face surrounded by an edge. A lower plate is provided with downwardly projecting formations anchoring it to a lower vertebra on its lower face and a flat inner face surrounding a groove extending front-to-back. A middle plate between the upper and lower plate has on its upper face a convexity that is identically or differently shaped to the concavity on the inner face of the upper plate and a ridge extending front-to-back surrounded by a flat lower face of the middle plate. The ridge has flanks and the groove houses the ridge of the middle plate and permits the ridge to slide front-to-back in the groove.

Abstract: A screw has a screw tip defined at a forward end of the screw. A screw head is formed at a rear end of the screw. A screw thread helically extends from adjacent the screw tip towards the screw head. The screw thread has a series of successive screw thread portions each helically extending through 360 degrees. At least one flute extends from adjacent the screw tip towards the screw head through at least one of the screw thread portions. For each flute, a leading edge region of each of at least one screw thread portion through which the flute extends is convexly curved. Each leading edge region is defined by a trailing wall of the flute adjacent a crest of the respective screw thread portion.