Abstract: The present disclosure provides folded, porous metal scaffolds that can be used as bone ingrowth features on medical implants.

Abstract: A retracting probing instrument includes an outer tube having a longitudinal axis. The outer tube includes an inner passage and a tip. A probe includes an inner shaft having a distal end portion. At least a portion of the distal end portion of the inner shaft is made of nitinol. In an initial position, the distal end portion of the inner shaft is located in the inner passage of the outer tube. In a deployed position, the distal end portion of the inner shaft protrudes from the tip of the outer tube.

Abstract: A total joint instrument set according to an exemplary aspect of the present disclosure includes, among other things, a guide assembly that orients a cut in a first bone and a linkage guide that orients a cut in a second bone. A positioning of the linkage guide is mechanically linked to at least a portion of the guide assembly.

Abstract: A flexible drill with a shaft having a nitinol portion (or nitinol region) provided between a stainless steel driver end and a stainless steel drill tip. The flexible drill with nitinol shaft is provided with a bearing surface to allow centering within a drill guide, low friction bearing and flexibility to drill around a curve. The bearing surface may be formed of a fluoropolymer such as LDPE (Low Density Polyethylene). The flexible drill shaft may be used through a drill guide, such as a curved drill sleeve.

Abstract: A cutting instrument having a body, a blade at a distal end of the body, and a mechanism for rotating the blade from a first to a second position. The instrument can be used in a method of retrograde drilling a hole in bone. The cutting instrument is provided with a mechanism (for example, a pin and a slot) that converts linear motion into rotational motion and locks the blade into position. The cutting blade is configured to engage the shaft of the instrument and to lock into the shaft. The cutting blade is articulated between at least a first “straight” position (for example, about parallel to the longitudinal axis of the instrument) when the instrument cuts in an antegrade manner, and at least a second “flip” position (for example, a non-parallel position relative to the longitudinal axis of the instrument) when the instrument cuts in a retrograde manner. The cutter instrument may also include a button mechanism for controlling the linear movement.

Abstract: Methods and apparatus for arthroscopically-assisted preparation of the tibia to accept an unicompartmental implant that includes the step of removing bone from the tibial plateau to correct depth, diameter and proper angle by employing a tibial rasp comprising a cutter with a plurality of teeth on the bottom surface and a side surface (for example, the front side). The tibial rasp may be used in conjunction with an additional starter rasp that can cut only in one direction (for example, cutting to establish only the depth of the tunnel or socket).

Abstract: A cutting instrument having a body, a blade at a distal end of the body, and a mechanism for rotating the blade from a first to a second position. The instrument can be used in a method of retrograde drilling a hole in bone. The cutting instrument is provided with a mechanism (for example, a pin and a slot) that converts linear motion into rotational motion and locks the blade into position. The cutting blade is configured to engage the shaft of the instrument and to lock into the shaft. The cutting blade is articulated between at least a first “straight” position (for example, about parallel to the longitudinal axis of the instrument) when the instrument cuts in an antegrade manner, and at least a second “flip” position (for example, a non-parallel position relative to the longitudinal axis of the instrument) when the instrument cuts in a retrograde manner. The cutter instrument may also include a button mechanism for controlling the linear movement.

Abstract: A cutting instrument having a body, a blade at a distal end of the body, and a mechanism for rotating the blade from a first to a second position. The instrument can be used in a method of retrograde drilling a hole in bone. The cutting instrument is provided with a mechanism (for example, a pin and a slot) that converts linear motion into rotational motion and locks the blade into position. The cutting blade is configured to engage the shaft of the instrument and to lock into the shaft. The cutting blade is articulated between at least a first “straight” position (for example, about parallel to the longitudinal axis of the instrument) when the instrument cuts in an antegrade manner, and at least a second “flip” position (for example, a non-parallel position relative to the longitudinal axis of the instrument) when the instrument cuts in a retrograde manner. The cutting blade may be provided with a suture passing notch.

Abstract: An arthroscopic tibial sizer provided with a collapsible loop (for example, a nitinol loop) and a pin indicator located at about the center of the collapsible loop. The collapsible loop is formed of a flexible wire (for example, nitinol wire) and is designed to collapse so that it can be inserted through an arthroscopic portal and into the joint, and then to expand out to its original diameter once inside the joint space, for visual sizing. The collapsible loop may be provided in various diameters (i.e., 14, 17 or 20 mm, for example) to match various implant sizes. The pin indicator indicates the center of the loop and provides identification of the center of the tibial defect.

Abstract: A flexible drill with a shaft having a nitinol portion (or nitinol region) provided between a stainless steel driver end and a stainless steel drill tip. The flexible drill with nitinol shaft is provided with a bearing surface to allow centering within a drill guide, low friction bearing and flexibility to drill around a curve. The bearing surface may be formed of a fluoropolymer such as LDPE (Low Density Polyethylene). The flexible drill shaft may be used through a drill guide, such as a curved drill sleeve.

Abstract: Methods and apparatus for arthroscopically-assisted preparation of the tibia to accept an unicompartmental implant that includes the step of removing bone from the tibial plateau to correct depth, diameter and proper angle by employing a tibial rasp comprising a cutter with a plurality of teeth on the bottom surface and a side surface (for example, the front side). The tibial rasp may be used in conjunction with an additional starter rasp that can cut only in one direction (for example, cutting to establish only the depth of the tunnel or socket).

Abstract: An arthroscopic tibial sizer provided with a collapsible loop (for example, a nitinol loop) and a pin indicator located at about the center of the collapsible loop. The collapsible loop is formed of a flexible wire (for example, nitinol wire) and is designed to collapse so that it can be inserted through an arthroscopic portal and into the joint, and then to expand out to its original diameter once inside the joint space, for visual sizing. The collapsible loop may be provided in various diameters (i.e., 14, 17 or 20 mm, for example) to match various implant sizes. The pin indicator indicates the center of the loop and provides identification of the center of the tibial defect.

Abstract: A cutting instrument having a body, a blade at a distal end of the body, and a mechanism for rotating the blade from a first to a second position. The instrument can be used in a method of retrograde drilling a hole in bone. The cutting instrument is provided with a mechanism (for example, a pin and a slot) that converts linear motion into rotational motion and locks the blade into position. The cutting blade is configured to engage the shaft of the instrument and to lock into the shaft. The cutting blade is articulated between at least a first “straight” position (for example, about parallel to the longitudinal axis of the instrument) when the instrument cuts in an antegrade manner, and at least a second “flip” position (for example, a non-parallel position relative to the longitudinal axis of the instrument) when the instrument cuts in a retrograde manner. The cutting blade may be provided with a suture passing notch.