Abstract: An apparatus can include a shaft having a mating end and a driving end and having an axial slot; a sliding member located within the axial slot; and an activator to advance the sliding member towards the mating end of the shaft; wherein the axial slot includes a surface proximate the mating end to move a distal end of the sliding member into a retaining position.

Abstract: An apparatus can include a shaft having a mating end and a driving end and having an axial slot; a sliding member located within the axial slot; and an activator to advance the sliding member towards the mating end of the shaft; wherein the axial slot includes a surface proximate the mating end to move a distal end of the sliding member into a retaining position.

Abstract: Systems and methods for measuring an intramedullary length for an orthopedic implant are described herein. A reamer system comprises a reamer shaft and a first reamer head. The reamer shaft comprises a proximal end having a drive coupler, a distal end having a reamer coupler, and markers located along the reamer shaft proximate the proximal end. The first reamer head comprises a head coupler configured to connect with the reamer coupler, and one or more cutting flutes located distal to the head coupler. The markers provide an indication of lengths of the system from a distal tip of the cutting flutes to each of the markers. The markers can be radiopaque. A method of employing the reamer system to measure the intramedullary length is described herein.

Abstract: An intramedullary nail comprises longitudinal channel, a first transverse passage and a second transverse passage. A lag screw extends through the first transverse passage of the intramedullary nail. An anti-rotation shaft extends through the second transverse passage of the intramedullary nail. A cannulated lag screw lock is positioned in the intramedullary shaft and engages the lag screw. The anti-rotation shaft extends through a cross channel in the lag screw lock. A second shaft lock is positioned in the intramedullary nail with the second shaft lock engaging the anti-rotation shaft. In at least one embodiment, the lag screw lock includes a substantially cylindrical body portion rotatably connected to a threaded head portion. In at least one embodiment, the second shaft lock is provided as an end cap including a threaded upper portion and a lower post portion that extends into the lag screw lock.

Abstract: An intramedullary nail comprises longitudinal channel, a first transverse passage and a second transverse passage. A lag screw extends through the first transverse passage of the intramedullary nail. An anti-rotation shaft extends through the second transverse passage of the intramedullary nail. A cannulated lag screw lock is positioned in the intramedullary shaft and engages the lag screw. The anti-rotation shaft extends through a cross channel in the lag screw lock. A second shaft lock is positioned in the intramedullary nail with the second shaft lock engaging the anti-rotation shaft. In at least one embodiment, the lag screw lock includes a substantially cylindrical body portion rotatably connected to a threaded head portion. In at least one embodiment, the second shaft lock is provided as an end cap including a threaded upper portion and a lower post portion that extends into the lag screw lock.

Abstract: A targeting instrument system is provided and methods for positioning an internal fixation prosthesis, such as an intramedullary rod or nail, including a targeting guide device, an internal fixation prosthesis, and a detachable holding device. The holding device may include an exterior grip portion and a clamp portion defining an interior engaging surface for maintaining a locking alignment between the prosthesis and the targeting guide device during the placement of the internal fixation prosthesis into a subject. The holding device may be formed as a monolithic component including at least two flexible, spaced apart arms defining an elongated receiving channel extending from a proximal end configured to releasably engage the prosthesis and a distal end configured to releasably engage the targeting guide device. Alternatively, the holding device may include two pivotally coupled clamp bodies joined by a shaft rod.

Abstract: A bone reduction method and apparatus includes a bone reduction tool including a shaft with a proximal end portion, a distal end portion for insertion into a fractured bone, a first rigid portion located at the distal end portion, and a first flexible portion located between the first rigid portion and the proximal end portion.

Abstract: An instrument system is provided for positioning an internal fixation prosthesis and guiding a cannulated bone drill during a surgical, radioscopic procedure for the repair of a fractured bone of a patient. The instrument system includes a target wire, a handle formed from a radio translucent material having a target hole for guided passage of the target wire along a target axis. The target axis coincides with the intersection of a first plane and a second plane orthogonal to the first plane. The instrument system also includes a nose component attached to an end of the handle and removably connectable to the prosthesis. The nose component includes an alignment sight formed from a radio-opaque material.

Abstract: A targeting instrument system for positioning an intramedullary implant. The system comprises a multi-use targeting guide arm, an intramedullary implant, and a single-use nose segment configured to maintain a locking alignment between the intramedullary implant and the targeting guide arm during the placement of the intramedullary implant into a subject. The system may be provided as a sterile kit, and the intramedullary implant may be preassembled to the nose segment. Alternatively, system may include a sterile kit comprising a single-use targeting guide arm, and an intramedullary implant, wherein the intramedullary implant is preassembled to the single-use targeting guide arm.

Abstract: A targeting instrument system is provided and methods for positioning an internal fixation prosthesis, such as an intramedullary rod or nail, including a targeting guide device, an internal fixation prosthesis, and a detachable holding device. The holding device may include an exterior grip portion and a clamp portion defining an interior engaging surface for maintaining a locking alignment between the prosthesis and the targeting guide device during the placement of the internal fixation prosthesis into a subject. The holding device may be formed as a monolithic component including at least two flexible, spaced apart arms defining an elongated receiving channel extending from a proximal end configured to releasably engage the prosthesis and a distal end configured to releasably engage the targeting guide device. Alternatively, the holding device may include two pivotally coupled clamp bodies joined by a shaft rod.

Abstract: A universal targeting apparatus includes a generally U-shaped body having one end configured to be coupled to the proximal end of the intramedullary implant and a mounting portion at an opposite end of said body. An arm is rotatably mounted to the mounting portion of the U-shaped body and includes bores defined at its opposite ends. Each bore is arranged at a different angle to correspond to the angle of a transverse aperture in the intramedullary implant. The arm can be rotated so an appropriate one of the angled bores is aligned with the transverse aperture to serve as a guide for creating targeting holes in the bone.

Abstract: A universal targeting apparatus includes a generally U-shaped body having one end configured to be coupled to the proximal end of the intramedullary implant and a mounting portion at an opposite end of said body. An arm is rotatably mounted to the mounting portion of the U-shaped body and includes bores defined at its opposite ends. Each bore is arranged at a different angle to correspond to the angle of a transverse aperture in the intramedullary implant. The arm can be rotated so an appropriate one of the angled bores is aligned with the transverse aperture to serve as a guide for creating targeting holes in the bone.

Abstract: An instrument system is provided for positioning an internal fixation prosthesis and guiding a cannulated bone drill during a surgical, radioscopic procedure for the repair of a fractured bone of a patient. The instrument system includes a target wire, a handle formed from a radio translucent material having a target hole for guided passage of the target wire along a target axis. The target axis coincides with the intersection of a first plane and a second plane orthogonal to the first plane. The instrument system also includes a nose component attached to an end of the handle and removably connectable to the prosthesis. The nose component includes an alignment sight formed from a radio-opaque material.

Abstract: An instrument system is provided for positioning an internal fixation prosthesis and guiding a cannulated bone drill during a surgical, radioscopic procedure for the repair of a fractured bone of a patient. The instrument system includes a target wire, a handle formed from a radio translucent material having a target hole for guided passage of the target wire along a target axis. The target axis coincides with the intersection of a first plane and a second plane orthogonal to the first plane. The instrument system also includes a nose component attached to an end of the handle and removably connectable to the prosthesis. The nose component includes an alignment sight formed from a radio-opaque material.

Abstract: A nail assembly for use in trauma surgery is provided. The nail assembly includes an intramedullary shaft including a first transverse passage and a second transverse passage in the shaft. The first transverse passage and the second transverse passage do not contact each other on the shaft. The nail assembly also includes a first shaft extending through the first transverse passage in the intramedullary shaft and a second shaft extending through the second transverse passage in the intramedullary shaft. The second shaft includes an engagement feature configured to bring the second shaft into contact with the first shaft. The engagement feature may be in the form of a lateral mechanical feature that provides simultaneous unilateral coupled motion of the first shaft with the second shaft through the transverse passages in the intramedullary shaft.

Abstract: An apparatus for treating a bone fracture comprises an intramedullary rod extending through a first bone segment of a fractured bone. A lag screw assembly extends through a first transverse aperture in the rod, while a control member extends through a second transverse aperture longitudinally offset from the first aperture. The lag screw assembly includes a lag screw engaged to the second bone segment and a locking sleeve mounted over a proximal portion of the lag screw. The locking sleeve defines a groove aligned with the second aperture. The control member includes a distal portion penetrating the bone segments, an intermediate portion configured to engage the second aperture. and an enlarged head configured to slidably engage the groove. The groove includes a terminus that contacts the head of the control member after a predetermined amount of lateral migration of the lag screw as the fracture collapses.

Abstract: A measurement apparatus has a body that includes a reference surface that defines a reference line. The body further includes a first elongate window defining a first measurement line and a first measurement indicia positioned in association with the first elongate window. The first measurement line and the reference line define a first angle having a first magnitude. The first measurement indicia corresponds to the first magnitude.

Abstract: An instrument system is provided for positioning an internal fixation prosthesis and guiding a cannulated bone drill during a surgical, radioscopic procedure for the repair of a fractured bone of a patient. The instrument system includes a target wire, a handle formed from a radio translucent material having a target hole for guided passage of the target wire along a target axis. The target axis coincides with the intersection of a first plane and a second plane orthogonal to the first plane. The instrument system also includes a nose component attached to an end of the handle and removably connectable to the prosthesis. The nose component includes an alignment sight formed from a radio-opaque material.

Abstract: An instrument system is provided for positioning an internal fixation prosthesis and guiding a cannulated bone drill during a surgical, radioscopic procedure for the repair of a fractured bone of a patient. The instrument system includes a target wire, a handle formed from a radio translucent material having a target hole for guided passage of the target wire along a target axis. The target axis coincides with the intersection of a first plane and a second plane orthogonal to the first plane. The instrument system also includes a nose component attached to an end of the handle and removably connectable to the prosthesis. The nose component includes an alignment sight formed from a radio-opaque material.

Abstract: An instrument system is provided for positioning an internal fixation prosthesis and guiding a cannulated bone drill during a surgical, radioscopic procedure for the repair of a fractured bone of a patient. The instrument system includes a target wire, a handle formed from a radio translucent material having a target hole for guided passage of the target wire along a target axis. The target axis coincides with the intersection of a first plane and a second plane orthogonal to the first plane. The instrument system also includes a nose component attached to an end of the handle and removably connectable to the prosthesis. The nose component includes an alignment sight formed from a radio-opaque material.