Abstract: A rotary surgical assembly is disclosed. The assembly has a plurality of cutting teeth (216), a hollow dome (200) and a spindle (10). The hollow dome has a pole having a pole axis X, and a cutting surface featuring some of the cutting teeth. The cutting surface includes a curved part (214) and a substantially flat part (212) proximal the pole with an aperture (210) extending therethrough. The spindle has a proximal end (12) and a distal end (14) including a spindle mounting element (16). The spindle mounting element is secured to the dome beneath the substantially flat part of the cutting surface. The spindle mounting element has a cutting tooth (22) that extends distally through the cutting surface's aperture to form one of the said plurality of cutting teeth. A kit, and methods of manufacturing the rotary surgical assembly are described also.

Abstract: An inclination guide for use with an implant insertion tool during a surgical procedure includes a unitary body having a clip configured to be coupled to a mounting surface of the implant insertion tool, an elongated riser extending from the clip, and an elongated indicator extending from the elongated riser to a distal end. Such a design allows for an inexpensive and lightweight inclination guide that may be easily and quickly adjusted after assembly.

Abstract: A connection member for connecting a surgical tool to a plurality of different kinds of corresponding connector. A surgical tool including the connection member. A surgical kit including the surgical tool. The connection member includes an elongate shaft having a longitudinal axis, a proximal end and a distal end. The connection member also includes a plurality of connection features located at the proximal end of the shaft. The plurality of connection features includes at least one connection feature for mating with a first kind of corresponding connector. The plurality of connection features also includes at least one connection feature for mating with a second, different kind of corresponding connector. The connection member may be a male connection member and the corresponding connectors may be female. A method including providing the surgical tool and connecting the connection member to a corresponding connector.

Abstract: Methods and apparatus for planning and/or carrying out a total knee replacement surgical procedure on a knee of a leg of a patient are described. Anatomical data for the leg of the patient is obtained, which allows the femoral mechanical axis, the tibial mechanical axis, and the joint line of the knee to be determined. A planned proximal tibial cut angle and a planned distal femoral cut angle are determined. A total knee replacement procedure is carried out on the knee of the patient such that a distal femoral cut is made using the planned distal femoral cut angle and a proximal tibial cut is made using the planned proximal tibial cut angle.

Abstract: An orthopaedic implant includes a tibial component having a metal base with a polymer bearing molded thereto. A method for making a tibial component is also disclosed.

Abstract: Systems and methods for planning and assisting orthopaedic surgical procedures include a computer system and a robotic surgical device. The computer system receives multiple surgeon preferences, including target values and boundary values for surgical parameters of the orthopaedic surgical procedure. A surgeon uses the computer system to perform bony registration and leg-alignment registration for anatomy of a patient. The computer system determines a surgical plan for the orthopaedic surgical procedure based on the surgeon preferences, the bony registration, and the leg-alignment registration. The surgical plan includes planned values associated with the surgical parameters that are within the boundary values of the surgeon preferences. Determining the surgical plan may include automatically adjusting tibial coronal alignment, femoral coronal alignment, femoral flexion, femoral rotation, distal femoral resection height, proximal tibial resection height, and/or distal femoral resection height.

Abstract: Kits and methods for use in intraoperative trialling of hip prostheses to determine an appropriate length for the femoral neck component of a prosthetic hip joint, are described. A kit for use in selecting a femoral neck component of an orthopaedic joint prosthesis kit comprises a first and a second broach. Each of the first and second broaches has a neck connection element comprising a projection extending from a proximal surface of the broach, each projection having a length. The projection on the first broach has a different length than the projection on the second broach. The kit also includes a trial femoral neck component having a neck connection element in the form of a recess in a distal surface.

Abstract: An orthopaedic surgical instrument comprising a stem trial component is disclosed. The stem trial component comprises an outer sleeve and a central rod that couples the stem trial component to a surgical reamer. A method of assembling an orthopaedic surgical instrument is also disclosed.

Abstract: A surgical instrument system includes a commonly-sized orthopaedic surgical instrument assembly for use in implanting a femoral component, along with a number of orthopaedic surgical instrument assemblies having varying sizes of instruments of use in implanting a tibial tray component and a patella component.

Abstract: A surgical device (2) for extraction of a prosthetic component from a patient during surgery. The surgical device comprises a first component (8) having a female coupling portion at a first end, and a second end configured to be connected to one of a prosthetic component or a surgical extraction instrument. The first component further includes a retainer. The surgical device further comprises a second component (10) with a first end defining a male coupling portion, a stem (30, 130) extending from the male coupling portion, and a second end configured to be connected to the other of the prosthetic component or the surgical extraction instrument. The male coupling portion of the second component is configured to be disposed within the female coupling portion of the first component and retained within the female coupling portion by the retainer, with the stem of the second component extending away from the female coupling portion of the first component.

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: A system configured to design a customized implant includes a cutting tool, a tracker, and design software. The cutting tool is configured to resect bone from an anatomical bone along a cutting path, thereby creating a contoured bone surface. The tracker is configured to track at least a portion of the cutting path and store the at least a portion of the cutting path in a memory. The design software is configured to design an implant having a contoured implant surface that matches the contoured bone surface based at least in part on the stored cutting path.

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 surgical rotational tool driver and method. The driver includes a driveline extending within a hollow shaft and a head part including connection features for connecting to a connection member of a surgical rotational tool. The connection features of the head part include a housing and a pair of jaw member each including jaws for receiving the connection member. Each jaw member is pivotally mounted for rotation between: a first position for receipt of the connection member and a second position for retaining the connection member. The connection features of the head part further include a locking mechanism including a pair of catches for engaging with a respective catch of each jaw member to lock the jaw members in the second position. The locking mechanism also includes a release member slideably moveable within the housing to release the catches of the locking mechanism from the catches of the jaw members.