Method and Apparatus for Arthroscopic Assisted Arthroplasty of the Hip Joint
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Abstract
Devices, systems and methods for performing arthroscopic evaluations and procedures in and near the hip joint are provided. An arthroscopic assisted arthroplasty system is useful in the treatment of arthritic hip conditions, conserving healthy tissue, and limiting iatrogenic injury associated with traditional surgical exposures. A guide wire system employing retrograde and antegrade reamers along the femoral neck is useful in anatomic placement of instrumentation without formal hip dislocation. Fluoroscopy and computer assisted navigation enhance the system, methods, and apparatus. Acetabular and femoral collapsible prosthetic forms are useful in arthroscopic assisted placement. The devices, systems, and methods are effective to assist an operating surgeon in the addressing mild to moderate arthritic conditions of the femoral head and acetabulum where tissue conservation and surgical exposure morbidities should be limited.
125 Citations
35 Claims
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1-11. -11. (canceled)
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12. A system for performing an arthroscopic arthroplasty procedure with respect to a hip joint of a human patient, the hip joint being defined by a femoral head extending from a femoral neck of a femur, and an acetabulum of a pelvis, said system comprising:
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a distraction device adapted to be engaged between the femur and the pelvis, and operable to distract the hip joint by separating the femoral head from the acetabulum; an alignment device adapted to be engaged between the femur and the pelvis and operable to maintain the distracted hip joint in accordance with a normal hip joint alignment; a jig device adapted to be aligned along the femoral neck of the femur, the jig device being configured to receive a boring device and to guide the boring device for boring a channel through the femoral neck, along an axis extending longitudinally therealong, the channel extending through the femoral head toward the acetabulum; an acetabular prosthesis and a complementarily-configured femoral head prosthesis, each of the prostheses being configured to be directed through the channel to the hip joint for application to the corresponding one of the acetabulum and the femoral head, the acetabular prosthesis being configured to receive the femoral head prosthesis upon removal of the distraction device from the hip joint; and a joint preparation device configured to extend through the channel into the distracted hip joint;
the joint preparation device being configured to osteotomize one of the femoral head and the acetabulum for receiving the respective one of the femoral head prosthesis and the acetabular prosthesis, prior to the application thereof. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A method of performing an arthroscopic arthroplasty procedure with respect to a hip joint of a human patient, the hip joint being defined by a femoral head extending from a femoral neck of a femur, and an acetabulum of a pelvis, said method comprising:
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distracting the hip joint by separating the femoral head from the acetabulum, using a distraction device adapted to be engaged between the femur and the pelvis; maintaining the distracted hip joint in accordance with a normal hip joint alignment using an alignment device adapted to be engaged between the femur and the pelvis; boring a channel through the femoral neck, along an axis extending longitudinally therealong and such that the channel extends through the femoral head toward the acetabulum, using a jig device adapted to be aligned along the femoral neck of the femur and configured to receive and guide a boring device; directing each of an acetabular prosthesis and a complementarily-configured femoral head prosthesis through the channel to the hip joint; applying the acetabular prosthesis and the femoral head prosthesis to the corresponding one of the acetabulum and the femoral head, the acetabular prosthesis being configured to receive the femoral head prosthesis upon removal of the distraction device from the hip joint; and osteotomizing one of the femoral head and the acetabulum for receiving the respective one of the femoral head prosthesis and the acetabular prosthesis, prior to the application thereof, using a joint preparation device configured to extend through the channel into the distracted hip joint.
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Specification