Abstract: A surgical tool handle comprising a tool attachment coupling having locking piston subassembly is described. The attachment coupling is designed with a bayonet-type fitting having a series of coupling grooves constructed to accept surgical cutting tools having an attachment member of different cross-sectional geometries. More specifically, the attachment coupling comprises a coupling groove that accepts tool attachment members having both curved and rectangular cross-sectional geometries. In addition, a locking piston subassembly biases against the surgical tool attachment member received in the coupling groove to further stabilize the tool during a surgical procedure.

Abstract: A surgical tool handle comprising a tool attachment coupling having locking piston subassembly is described. The attachment coupling is designed with a bayonet-type fitting having a series of coupling grooves constructed to accept surgical cutting tools having an attachment member of different cross-sectional geometries. More specifically, the attachment coupling comprises a coupling groove that accepts tool attachment members having both curved and rectangular cross-sectional geometries. In addition, a locking piston subassembly biases against the surgical tool attachment member received in the coupling groove to further stabilize the tool during a surgical procedure.

Abstract: A surgical tool handle comprising a tool attachment coupling having locking piston subassembly is described. The attachment coupling is designed with a bayonet-type fitting having a series of coupling grooves constructed to accept surgical cutting tools having an attachment member of different cross-sectional geometries. More specifically, the attachment coupling comprises a coupling groove that accepts tool attachment members having both curved and rectangular cross-sectional geometries. In addition, a locking piston subassembly biases against the surgical tool attachment member received in the coupling groove to further stabilize the tool during a surgical procedure.

Abstract: A surgical tool handle comprising a tool attachment coupling having locking piston subassembly is described. The attachment coupling is designed with a bayonet-type fitting having a series of coupling grooves constructed to accept surgical cutting tools having an attachment member of different cross-sectional geometries. More specifically, the attachment coupling comprises a coupling groove that accepts tool attachment members having both curved and rectangular cross-sectional geometries. In addition, a locking piston subassembly biases against the surgical tool attachment member received in the coupling groove to further stabilize the tool during a surgical procedure.

Abstract: An orthopedic component having multiple layers that are selected to provide an overall modulus that is substantially lower than the modulus of known orthopedic components to more closely approximate the modulus of the bone into which the orthopedic component is implanted. In one exemplary embodiment, the orthopedic component is an acetabular shell. For example, the acetabular shell may include an outer layer configured for securement to the natural acetabulum of a patient and an inner layer configured to receive an acetabular liner. The head of a femoral prosthesis articulates against the acetabular liner to replicate the function of a natural hip joint. Alternatively, the inner layer of the acetabular shell may act as an integral acetabular liner against which the head of the femoral prosthesis articulates.

Abstract: An orthopedic component having multiple layers that are selected to provide an overall modulus that is substantially lower than the modulus of known orthopedic components to more closely approximate the modulus of the bone into which the orthopedic component is implanted. In one exemplary embodiment, the orthopedic component is an acetabular shell. For example, the acetabular shell may include an outer layer configured for securement to the natural acetabulum of a patient and an inner layer configured to receive an acetabular liner. The head of a femoral prosthesis articulates against the acetabular liner to replicate the function of a natural hip joint. Alternatively, the inner layer of the acetabular shell may act as an integral acetabular liner against which the head of the femoral prosthesis articulates.

Abstract: An acetabular implant for hip replacement surgery includes a shell component and first and second alternative bearing components interchangeably engageable with the shell component to provide a choice in bearing materials. The shell component has an engagement mechanism suitable for locking engagement with the first alternative shell component. A conversion ring is lockingly engageable with the shell component to adapt the shell component to provide an engagement mechanism suitable for locking engagement with the second alternative shell component.

Abstract: A hip stem centralizer datum guide and method are provided for positioning a proximal portion of a hip stem component within bone cement in an intramedullary canal of a femur. The datum guide is positionable in a predetermined position relative to the intramedullary canal and is able to create a datum that records the predetermined hip stem component position relative to the intramedullary canal. The datum is able to be referenced to position the hip stem component in the predetermined hip stem component position in the bone cement in the intramedullary canal.

Abstract: An apparatus includes an acetabular shell defining a bearing retention cavity and further defining a flange. The flange includes a first annular surface tapering inwardly into the cavity and a second annular surface extending generally radially inwardly into the cavity.