摘要:
The present disclosure includes a polyaxial bone fixation element for use in spinal fixation to interconnect a longitudinal spinal rod with a patient's vertebra. The polyaxial bone fixation element preferably includes a bone anchor, a collet, a body, and a locking cap. The polyaxial bone fixation element preferably enables in-situ assembly. That is, the polyaxial bone fixation element is preferably configured so that in use, the bone anchor may be secured to the patient's vertebra prior to being received within the body. Accordingly, the polyaxial bone fixation element enables a surgeon to implant the bone anchor without the body to maximize visibility and access around the anchoring site. Once the bone anchor has been secured to the patient's vertebra, the body can be snapped-onto the bone anchor. The bone anchor preferably also includes a second tool interface so that a surgical instrument can be directly coupled to the bone anchor.
摘要:
Devices and methods for in situ drawing, filtering and seeding cells from the marrow of surrounding bone into a fusion cage without any of the challenges mentioned above. Various implants and devices with aspiration ports that enable in-situ harvesting and mixing of stem cells. These devices may include spinal fusion cages, long bone spacers, lateral grafts and joint replacement devices. Each device utilizes at least one aspiration port for harvesting of stem cell-containing marrow via aspiration from adjacent bony elements.
摘要:
The invention features improved bone screws, a delivery manifold for delivering a flowable medium to a bone screw, and washers for use with the bone screw to provide compressive fixation. The invention also features methods of treatment using the bone screws, washers, and/or delivery manifold, and kits that include the same.
摘要:
A device (17) is provided for tensioning a flexible band (3) used to maintain a bone element on an implant. The device includes a rod (18) having a first end (19) provided with means (20) for bearing on the implant, a movable part (32) for hooking the flexible band onto a portion (28) of the device, and means (34) for adjustably locking the movable part in translation in relation to the portion of the device. The rod (18) includes a gripping handle (26) at the second end (27) thereof. The aforementioned portion of the device forms an angle α with the rod (18) to which it is rigidly connected at an intermediary point, the direction of the band being altered at an angle, and the aforementioned adjustable locking means (34) includes manual screwing means (35) for actuating the movable part.
摘要:
A device (17) is provided for tensioning a flexible band (3) used to maintain a bone element on an implant. The device includes a rod (18) having a first end (19) provided with means (20) for bearing on the implant, a movable part (32) for hooking the flexible band onto a portion (28) of the device, and means (34) for adjustably locking the movable part in translation in relation to the portion of the device. The rod (18) includes a gripping handle (26) at the second end (27) thereof. The aforementioned portion of the device forms an angle α with the rod (18) to which it is rigidly connected at an intermediary point, the direction of the band being altered at an angle, and the aforementioned adjustable locking means (34) includes manual screwing means (35) for actuating the movable part.
摘要:
A method for the long-term delivery of fluids to a bone of a patient includes providing a cannulated bone screw and an insert configured to be coupled to the bone screw. The method further includes creating an aperture in the skin of a patient, inserting the bone screw into a bone of the patient through the aperture, and coupling the insert to the bone screw. The method further includes the steps of providing a fluid source, coupling the fluid source to the insert, and delivering a fluid from the fluid source to the insert.
摘要:
Devices, instruments and associated methods for the subchondral treatment of osteoarthritis in hip and shoulder joints are provided. In addition, a method for treating joint pain is provided. The method comprises: identifying a subchondral defect in a subchondral region of a bone of the joint; selecting a subchondral access path to a location near the subchondral defect; and treating the subchondral defect, via the subchondral access, in a manner that restores normal force distribution and joint function while preserving the articular surface of the bone, wherein the joint is a hip or shoulder.
摘要:
Systems, methods and devices for providing stabilization between first and second vertebrae are provided. More particularly, in one form an implant assembly includes first and second end members configured to engage with the first and second vertebrae, respectively, and a support body configured to extend between and engage with the end members. In one aspect of this form, one or both of the end members is configured to facilitate injection of a material into one or both of the vertebrae. In another aspect, one or both of the end members includes a mesh material extending across a hollow interior to facilitate bone growth through the end member toward the support body. In another form, techniques for providing stabilization and support to vertebrae on opposite sides of a space created by removal of one or more vertebral elements are provided. However, different forms and applications are also envisioned.
摘要:
An orthopaedic surgical system for use in a direct anterior approach orthopaedic surgical hip replacement procedure on a patient's femur includes an insertion instrument having a depth stop with a rotatable guide arm to install a cemented femoral stem component at a desired depth. A method of installing a cemented femoral stem component during performance of a direct anterior approach orthopaedic surgical hip replacement procedure is also disclosed.
摘要:
The present disclosure includes a polyaxial bone fixation element for use in spinal fixation to interconnect a longitudinal spinal rod with a patient's vertebra. The polyaxial bone fixation element preferably includes a bone anchor, a collet, a body, and a locking cap. The polyaxial bone fixation element preferably enables in-situ assembly. That is, the polyaxial bone fixation element is preferably configured so that in use, the bone anchor may be secured to the patient's vertebra prior to being received within the body. Accordingly, the polyaxial bone fixation element enables a surgeon to implant the bone anchor without the body to maximize visibility and access around the anchoring site. Once the bone anchor has been secured to the patient's vertebra, the body can be snapped-onto the bone anchor. The bone anchor preferably also includes a second tool interface so that a surgical instrument can be directly coupled to the bone anchor.