摘要:
The present invention comprises a set of instruments and a method for their use in preparing a knee joint to receive knee implants. The inventive instruments and method are generally suitable for knee joint surgery. Furthermore, they include features that make them suitable for performing a minimally invasive knee surgery in which a smaller than normal incision is made and oriented to preserve the quadriceps mechanism and protect the suprapatellar pouch. The instruments permit switching from a minimally invasive technique to a standard open technique at any point in the procedure. An illustrative set of instruments for total knee arthroplasty and an associated minimally invasive technique are described.
摘要:
Modular bone implants include first and second components removably attached to one another. In one embodiment, the components include a rotational alignment mechanism within the junction between the components. In another embodiment, the components include fins on each component that align without touching.
摘要:
A method of performing a tibial tubercle osteotomy includes cutting a bone portion of a tibial tubercle from a remaining portion of the tibial tubercle, at least a portion of a patella ligament being attached to the bone portion. The bone portion of the tibial tubercle is separated from the remaining portion of the tibial tubercle such that the patella ligament remains attached to the bone portion. After completing a surgical procedure, the separated bone portion of the tibial tubercle is reattached to the remaining portion of the tibial tubercle.
摘要:
A femoral knee prosthesis system for resurfacing a resected articular surface at the distal end of a femur includes a femoral component adapted to mate with the resected articular surface; and an attachment member. The interior surface of the femoral component is configured to connect to the first attachment member when the femoral component is mated on the resected articular surface of the femur and when the first attachment member is passed through the medial side or the lateral side of the resected articular surface. The femoral component is available in one-piece and two-piece systems. Mating femoral components (e.g., tapered or with lips that interlock with grooves) are also disclosed.
摘要:
The present invention comprises a set of instruments and a method for their use in preparing a knee joint to receive knee implants. The inventive instruments and method are generally suitable for knee joint surgery. Furthermore, they include features that make them suitable for performing a minimally invasive knee surgery in which a smaller than normal incision is made and oriented to preserve the quadriceps mechanism and protect the suprapatellar pouch. The instruments permit switching from a minimally invasive technique to a standard open technique at any point in the procedure. An illustrative set of instruments for total knee arthroplasty and an associated minimally invasive technique are described.
摘要:
A method includes the acts of sliding a first end of a flexible first line through a channel in a first bone anchor. A portion of the first line is connected to an implant having a top articular surface and an opposing bone apposition surface. The first line extending between the implant and the first bone anchor is then tensioned. While the tensioning force is maintained on the first line, the first line is secured to the first bone anchor.
摘要:
A method includes resecting a portion of an articulation surface of a bone at a joint. A guide template is positioned on the resected articulation surface. The guide template at least partially bounds an opening that is disposed over the resected articulation surface. A portion of the resected articulation surface of the bone bounded within the opening of the guide template is then removed through the opening of the guide template.
摘要:
A method for resecting at least a portion of a lateral or medial facet at the proximal end of a tibia includes forming a tunnel having a proximal end on a lateral, medial, or anterior side of a proximal end of a tibia and a distal end on a lateral or medial facet at the proximal end of the tibia. A first end of a retention rod is advanced from the proximal end of the tunnel to the distal end of the tunnel. The first end of the retention rod is coupled to a rasp. At least the rasp or the retention rod is moved so as to cause the rasp to resect at least a portion of the lateral or medial facet of the tibia.
摘要:
A femoral knee prosthesis system for resurfacing a resected articular surface at the distal end of a femur includes a femoral component adapted to mate with the resected articular surface; and an attachment member. The interior surface of the femoral component is configured to connect to the first attachment member when the femoral component is mated on the resected articular surface of the femur and when the first attachment member is passed through the medial side or the lateral side of the resected articular surface. The femoral component is available in one-piece and two-piece systems. Mating femoral components (e.g., tapered or with lips that interlock with grooves) are also disclosed.
摘要:
The present invention comprises a set of instruments and a method for their use in preparing a knee joint to receive knee implants. The inventive instruments and method are generally suitable for knee joint surgery. Furthermore, they include features that make them suitable for performing a minimally invasive knee surgery in which a smaller than normal incision is made and oriented to preserve the quadriceps mechanism and protect the suprapatellar pouch. The instruments permit switching from a minimally invasive technique to a standard open technique at any point in the procedure. An illustrative set of instruments for total knee arthroplasty and an associated minimally invasive technique are described.