Abstract: A trial (100) for use in performing joint arthroplasty is provided. The trial (100) fits to a cavity (103) in the canal (105) of a long bone (107) and assists in the performing of a trial reduction in performing joint arthroplasty. The trial (100) includes a stem portion (102) and a neck portion (104) fixedly connected to the stem portion (102) in a plurality of selectable positions with respect to the stem portion (102).

Abstract: A surgical garment includes a head gear apparatus for supporting a face shield and shroud. The head gear apparatus includes a helmet that supports a fan assembly, and that defines forward and rear ventilation passageways. The helmet includes a chin bar that defines a centrally located slot, and an upper ledge. The upper edge of the face shield contacts the upper ledge, while the lower edge of the shield includes a tab that extends through the slot. The chin bar and face shield include a plurality of magnetic elements that magnetically connect the lower edge of the face shield to the chin bar. The helmet is suspended from a strap assembly that is carried directly on the head of the wearer. The strap assembly includes an adjustable occipital support that bears against the occiput of the wearer. The face shield can include a plurality of film layers that can be removed when soiled.

Abstract: A trial (100) for use in performing joint arthroplasty is provided. The trial (100) fits to a cavity (103) in the canal (105) of a long bone (107) and assists in the performing of a trial reduction in performing joint arthroplasty. The trial (100) includes a stem portion (102) and a neck portion (104) fixedly connected to the stem portion (102) in a plurality of selectable positions with respect to the stem portion (102).

Abstract: A trial (100) for use in performing joint arthroplasty is provided. The trial (100) fits to a cavity (103) in the canal (105) of a long bone (107) and assists in the performing of a trial reduction in performing joint arthroplasty. The trial (100) includes a stem portion (102) and a neck portion (104) fixedly connected to the stem portion (102) in a plurality of selectable positions with respect to the stem portion (102).

Abstract: A system and method for trialing a modular hip replacement system (10) permits evaluation and replication of the anatomic anteversion rotational angle of the femur. A distal stem component (18) of the hip replacement system (10) includes a proximal portion (34) having a locator feature (35) that is externally accessible when the stem component is mounted within the femur. A proximal trial body assembly (60) is mounted on the proximal portion (34) of the distal stem component (18) to permit rotation of a trial neck component (62). The trial neck component (62) also includes a locator feature (126) that can be externally referenced to determine the anteversion angle.

Abstract: A system and method for trialing a modular hip replacement system (10) permits evaluation and replication of the anatomic anteversion rotational angle of the femur. A distal stem component (18) of the hip replacement system (10) includes a proximal portion (34) having a locator feature (35) that is externally accessible when the stem component is mounted within the femur. A proximal trial body assembly (60) is mounted on the proximal portion (34) of the distal stem component (18) to permit rotation of a trial neck component (62). The trial neck component (62) also includes a locator feature (126) that can be externally referenced to determine the anteversion angle.

Abstract: An assembly tool (1) for assembly of a first component (2) of a prosthesis (4) to a second component (6) of the prosthesis (4) for use in joint arthroplasty is provided. The tool (1) includes a first member (8) operably associated with the first component (2). The first member (8) defines a first member longitudinal axis (10) of the first member (8). The tool also includes a second member (12) operably associated with the second component (6). The second member (12) defines a second member longitudinal axis (14) of the second member (12). The second member (12) is adapted to provide relative motion of the second member (12) with respect to the first member (8) when the second member (12) is rotated relative to the first member (8) about the second member longitudinal axis (14).

Abstract: A system and method for trialing a modular hip replacement system (10) permits evaluation and replication of the anatomic anteversion rotational angle of the femur. A distal stem component (18) of the hip replacement system (10) includes a proximal portion (34) having a locator feature (35) that is externally accessible when the stem component is mounted within the femur. A proximal trial body assembly (60) is mounted on the proximal portion (34) of the distal stem component (18) to permit rotation of a trial neck component (62). The trial neck component (62) also includes a locator feature (126) that can be externally referenced to determine the anteversion angle.

Abstract: A kit (400) for use in performing joint arthroplasty is provided. The kit (400) includes a trial (12) and a reamer (2). The reamer (2) is for preparing a cavity (4) in the intramedullary canal (8) of a long bone (8) with the use of a driver (10) and to assist in performing a trial reduction. The reamer (2) includes a first portion (14) for placement at least partially in the cavity (4) of the long bone (8) and a second portion (16) operably connected to the first portion (14). The reamer (2) is removably connected to the driver (10) to rotate the reamer (2). The trial (12) is removably attachable to the reamer (2).

Abstract: A system and method for trialing a modular hip replacement system (10) permits evaluation and replication of the anatomic anteversion rotational angle of the femur. A distal stem component (18) of the hip replacement system (10) includes a proximal portion (34) having a locator feature (35) that is externally accessible when the stem component is mounted within the femur. A proximal trial body assembly (60) is mounted on the proximal portion (34) of the distal stem component (18) to permit rotation of a trial neck component (62). The trial neck component (62) also includes a locator feature(126) that can be externally referenced to determine the anteversion angle.

Abstract: A surgical garment includes a head gear apparatus for supporting a face shield and shroud. The head gear apparatus includes a helmet that supports a fan assembly, and that defines forward and rear ventilation passageways. The helmet includes a chin bar that defines a centrally located slot, and an upper ledge. The upper edge of the face shield contacts the upper ledge, while the lower edge of the shield includes a tab that extends through the slot. The chin bar and face shield include a plurality of magnetic elements that magnetically connect the lower edge of the face shield to the chin bar. The helmet is suspended from a strap assembly that is carried directly on the head of the wearer. The strap assembly includes an adjustable occipital support that bears against the occiput of the wearer. The face shield can include a plurality of film layers that can be removed when soiled.

Abstract: A modular prosthesis is disclosed that includes a neck member having a tapered neck body. The modular prosthesis further includes a sleeve component having a first elongated tapered bore. The tapered neck body is received within the first elongated tapered bore so as to taper lock the sleeve component to the neck member. The modular prosthesis also includes a stem member configured to be implanted into a medullary canal of a bone. One of the neck member and the stem member includes a second elongated tapered bore. The other of the neck member and the stem member includes a tapered post that is received within the second tapered bore so as to taper lock the neck member to the stem member.

Abstract: A surgical garment includes a head gear apparatus for supporting a face shield and shroud. The head gear apparatus includes a helmet that supports a fan assembly, and that defines forward and rear ventilation passageways. The helmet includes a chin bar that defines a centrally located slot, and an upper ledge. The upper edge of the face shield contacts the upper ledge, while the lower edge of the shield includes a tab that extends through the slot. The chin bar and face shield include a plurality of magnetic elements that magnetically connect the lower edge of the face shield to the chin bar. The helmet is suspended from a strap assembly that is carried directly on the head of the wearer. The strap assembly includes an adjustable occipital support that bears against the occiput of the wearer. The face shield can include a plurality of film layers that can be removed when soiled.

Abstract: An instrument (200) for at least one of replicating and measuring the angular orientation of a first component (54) of a prosthesis (51) to a second component (52) of the prosthesis (51) for use in joint arthroplasty. The instrument (200) includes a first member (202) for cooperation with the first component (54), a second member (210) for cooperation with the second component (52), and a feature (220). The feature (220) cooperates with the first member (202) and the second member (210) for at least one of replicating and measuring the relative angular orientation of the first component (54) with respect to the second component (52).

Abstract: A surgical garment includes a head gear apparatus for supporting a face shield and shroud. The head gear apparatus includes a helmet that supports a fan assembly, and that defines forward and rear ventilation passageways. The helmet includes a chin bar that defines a centrally located slot, and an upper ledge. The upper edge of the face shield contacts the upper ledge, while the lower edge of the shield includes a tab that extends through the slot. The chin bar and face shield include a plurality of magnetic elements that magnetically connect the lower edge of the face shield to the chin bar. The helmet is suspended from a strap assembly that is carried directly on the head of the wearer. The strap assembly includes an adjustable occipital support that bears against the occiput of the wearer. The face shield can include a plurality of film layers that can be removed when soiled.

Abstract: A medical instrument and procedure is adapted to mill bone along a curve and with respect to at least two angles of orientation with respect to an input source of rotary motion. Particularly, the medical instrument is a bone milling apparatus that is configured to mill bone along a predetermined curved path or curve. The bone milling apparatus includes a reamer that is rotatable about a curved shaft which is retained by a frame. The shaft has a predetermined curve that corresponds to a desired milling curve. The reamer is comprised of a plurality of interconnected segments, with each segment having cutting surfaces such that each segment is a cutter. The reamer is thus flexible with respect to the interconnection between the individual segments.

Abstract: A surgical garment includes a head gear apparatus for supporting a face shield and shroud. The head gear apparatus includes a helmet that supports a fan assembly, and that defines forward and rear ventilation passageways. The helmet includes a chin bar that defines a centrally located slot, and an upper ledge. The upper edge of the face shield contacts the upper ledge, while the lower edge of the shield includes a tab that extends through the slot. The chin bar and face shield include a plurality of magnetic elements that magnetically connect the lower edge of the face shield to the chin bar. The helmet is suspended from a strap assembly that is carried directly on the head of the wearer. The strap assembly includes an adjustable occipital support that bears against the occiput of the wearer. The face shield can include a plurality of film layers that can be removed when soiled.

Abstract: A modular prosthesis is disclosed that includes a neck member having a tapered neck body. The modular prosthesis further includes a sleeve component having a first elongated tapered bore. The tapered neck body is received within the first elongated tapered bore so as to taper lock the sleeve component to the neck member. The modular prosthesis also includes a stem member configured to be implanted into a medullary canal of a bone. One of the neck member and the stem member includes a second elongated tapered bore. The other of the neck member and the stem member includes a tapered post that is received within the second tapered bore so as to taper lock the neck member to the stem member.

Abstract: A system and method for trialing a modular hip replacement system (10) permits evaluation and replication of the anatomic anteversion rotational angle of the femur. A distal stem component (18) of the hip replacement system (10) includes a proximal portion (34) having a locator feature (35) that is externally accessible when the stem component is mounted within the femur. A proximal trial body assembly (60) is mounted on the proximal portion (34) of the distal stem component (18) to permit rotation of a trial neck component (62). The trial neck component (62) also includes a locator feature(126) that can be externally referenced to determine the anteversion angle.

Abstract: A tool (100) for aiding in the selection an appropriately sized implant (400) for use in performing joint arthroplasty is provided. The tool (100) cooperates with an anatomical joint (101) or with an image (102) of an anatomical joint (101). The tool (100) includes a body (110) for alignment with a first portion (112) of the anatomical joint (101) and a segment (114). The segment (114) is moveable with respect to the body (110). The segment (114) is aligned with a second portion (116) of the anatomical joint (101). The body (110) and segment (114) are adapted for measuring the relative positions of the first (112) and second (116) portions of the anatomical joint (101) for use in the selection an appropriately sized implant (400).