Abstract: A femoral trialling kit and method for assessing acetabular cup orientation during a left hip joint surgical procedure and a right hip joint surgical procedure are described. The kit includes a trial femoral head (104, 414, 514, 614, 814) having an inner wall defining a cavity extending along a head axis and a visual alignment guide on an outer surface of the trial femoral head and a trial femoral neck (126, 412, 512, 612, 812) having a taper at a free end, the taper being receivable within the cavity. One of the taper and the inner wall has a first anti-rotation feature (684, 698) and a second anti-rotation feature (686, 700), the first anti-rotation feature and the second anti-rotation feature being inclined, and the other of the taper and the inner wall has a third anti-rotation feature (702).

Abstract: The present invention relates generally to the field of orthopedics, and more particularly to a pelvic referencing guide and methods of using the guide in orthopaedic surgery, specifically total hip arthroplasty.

Abstract: The invention provides a surgical device for performing a controlled resection of the neck of a femur during a hip replacement procedure. The surgical device comprises a body portion having: a frame comprising an aperture dimension for receipt of a femoral head of the femur to position the body portion with respect to a centre of the femoral head; a resection guide for indicating a position of a resection plane on the femoral neck, and an arm extending between the frame and the resection guide. The body portion includes a linear alignment surface for alignment with a femoral shaft axis of the femur while the frame is mounted on the anterior or posterior aspect of the femoral head.

Abstract: Surgical instrument trays and related methods are described. The surgical instrument tray is for a surgical instrument having a plurality of parts from which the surgical instrument is assembled. The surgical tray comprises a tray having a plurality of side walls and a base which define an interior space; a lid for closing the interior space and which is removable from the tray; and a plurality of outlines located within the interior space. Each outline has the shape of a corresponding different part of the surgical instrument and each outline has at least one support arranged to receive and releasably hold the respective different parts of the surgical instrument above and in registration with the outline. The plurality of outlines are configured to indicate that the different parts of the surgical instrument are assembled to form the surgical instrument and/or that the surgical instrument is disassembled into the different parts.

Abstract: The invention relates to a surgical device for performing a controlled resection of the neck of a femur during a hip replacement procedure. The surgical device comprises a template comprising an aperture dimensioned for receiving a femoral head of the femur, and a frame comprising a resection guide for indicating a resection plane on the femoral neck. The femoral neck has a femoral neck axis. The frame is slidably connected to the template for positioning of the resection guide along the femoral neck axis while the template is mounted on the femoral head.

Abstract: An apparatus and method for aligning an acetabular cup. The apparatus may include an acetabular cup and/or a protractor and/or a depth gauge tool and may be provided in the form of a surgical kit. Components of the apparatus may allow an angle of rotation of an acetabular cup about an axis of the cup relative to an anatomical feature of a patient to be determined when the acetabular cup implant is placed in the acetabulum of the patient. Components of the apparatus may allow an amount of overhang between a rim of an acetabular cup and an edge of the acetabulum to be determined. The acetabular cup may be an acetabular trial cup or and acetabular cup implant. Embodiments of the invention may allow both the angle of rotation about the cup axis and the amount of overhang between the rim and the acetabulum edge to be determined.

Abstract: A neck trial (170) is disclosed. The neck trial has a body (182) and a neck (186). The body has an exterior surface. The neck extends away from the body along a neck axis (190). At least one first line (194) is provided on the exterior surface, which extends in a first direction parallel to an inferior-superior axis of a patient when in use. At least one second line (196) is provided on the exterior surface, which extends in a second direction parallel to a medial-lateral axis of the patient in use. The number of first lines, or the position of the first line or lines relative to the second line or lines, is indicative of an amount of offset in the medial-lateral direction caused by the neck trial. The number of second lines, or the position of the second line or lines relative to the first line or lines, is indicative of an amount of leg-length in the inferior-superior direction caused by the neck trial. A kit of parts, a trial assembly and a method of trialling a joint of a patient are also disclosed.

Abstract: An apparatus and method for aligning an acetabular cup. The apparatus may include an acetabular cup (150, 10) and/or a protractor (30) and/or a depth gauge tool (90) and may be provided in the form of a surgical kit. Components of the apparatus may allow an angle of rotation of an acetabular cup about an axis (111) of the cup relative to an anatomical feature of a patient to be determined when the acetabular cup implant is placed in the acetabulum of the patient. Components of the apparatus may allow an amount of overhang between a rim (12, 162) of an acetabular cup and an edge of the acetabulum to be determined. The acetabular cup may be an acetabular trial cup (10) or and acetabular cup implant (150). Embodiments of the invention may allow both the angle of rotation about the cup axis and the amount of overhang between the rim and the acetabulum edge to be determined.

Abstract: Surgical instrument trays and related methods are described. The surgical instrument tray includes a tray having a plurality of side walls and a base which define an interior space. An insert is located within the interior space of the tray and is removable from the interior space. A lid is provided for closing the interior space and which is removable from the tray. The insert has an upper surface including a plurality of outlines, each outline having the shape of the outline of a corresponding surgical instrument or part of a surgical instrument, each outline being in the form of a continuous strip, and wherein each outline has at least one support arranged to receive and releasably hold the corresponding surgical instrument or part of the surgical instrument above and in registration with the outline.

Abstract: The invention provides a surgical apparatus for performing a controlled resection of the neck of a femur during a hip replacement procedure, the surgical apparatus comprising: a body portion. The body portion comprises a frame that is mountable on a femoral head of the femur to position the body portion with respect to a centre of the femoral head. The body portion also includes a resection guide for indicating a position of a resection plane on the femoral neck, and an arm extending from the frame and including markings for reading off a femoral head offset. The apparatus also includes a connector for mounting the body portion on an intramedullary rod located in an intramedullary canal of the femur, and for slidably receiving the arm. The connector includes a pointer. The femoral head offset is indicated by reading the position of the pointer relative to the markings on the arm.

Abstract: The invention provides a surgical device for performing a controlled resection of the neck of a femur during a hip replacement procedure. The surgical device comprises a body portion having: a frame comprising an aperture dimension for receipt of a femoral head of the femur to position the body portion with respect to a centre of the femoral head; a resection guide for indicating a position of a resection plane on the femoral neck, and an arm extending between the frame and the resection guide. The body portion includes a linear alignment surface for alignment with a femoral shaft axis of the femur while the frame is mounted on the anterior or posterior aspect of the femoral head.

Abstract: A femoral trialling kit and method for assessing acetabular cup orientation during a left hip joint surgical procedure and a right hip joint surgical procedure are described. The kit includes a trial femoral head (104, 414, 514, 614, 814) having an inner wall defining a cavity extending along a head axis and a visual alignment guide on an outer surface of the trial femoral head and a trial femoral neck (126, 412, 512, 612, 812) having a taper at a free end, the taper being receivable within the cavity. One of the taper and the inner wall has a first anti-rotation feature (684, 698) and a second anti-rotation feature (686, 700), the first anti-rotation feature and the second anti-rotation feature being inclined, and the other of the taper and the inner wall has a third anti-rotation feature (702).

Abstract: The present invention relates generally to the field of orthopedics, and more particularly to a pelvic referencing guide and methods of using the guide in orthopaedic surgery, specifically total hip arthroplasty.

Abstract: An apparatus and method for aligning an acetabular cup. The apparatus may include an acetabular cup (150, 10) and/or a protractor (30) and/or a depth gauge tool (90) and may be provided in the form of a surgical kit. Components of the apparatus may allow an angle of rotation of an acetabular cup about an axis (111) of the cup relative to an anatomical feature of a patient to be determined when the acetabular cup implant is placed in the acetabulum of the patient. Components of the apparatus may allow an amount of overhang between a rim (12, 162) of an acetabular cup and an edge of the acetabulum to be determined. The acetabular cup may be an acetabular trial cup (10) or and acetabular cup implant (150). Embodiments of the invention may allow both the angle of rotation about the cup axis and the amount of overhang between the rim and the acetabulum edge to be determined.

Abstract: A trial liner for fitting in a shell part of an orthopaedic joint prosthesis has a concave inner bearing surface for articulation with a head part, and an opposite outer surface. The liner has first and second portions which are separated by a slot extending between the inner and outer surfaces which has first and second ends. The slot divides the liner into first and second portions which are connected to one another by means of a first hinge at the first end of the slot and a second hinge at the second end of the slot. Each of the first and second portions has a locking feature in the form of a recess or protrusion which can engage a corresponding locking feature on the internal surface of a shell part to lock the liner into the shell part. The hinges allow the first portion of the liner to pivot relative to the second portion between first and second configurations, in which the distance between the first and second portions is less in the second configuration than in the first configuration.