Abstract: An orthopaedic surgical instrument system includes a sensor adapter and multiple surgical instruments. The sensor adapter includes a housing with a force sensor positioned within the housing and a sensor contact configured to transfer force to the force sensor extending from the housing. Each surgical instrument includes a sensor connector configured to receive the sensor adapter at a predetermined location relative to the surgical instrument. Each sensor adapter further includes a registering feature to engage an anatomical feature of a patient or another surgical instrument. The surgical instruments may include a shim that may be attached to a gap assessment tool or a tibial insert trial. Methods associated with the surgical instrument system are also disclosed.

Abstract: Apparatus, systems, and methods for developing patient-specific surgical plans are disclosed. One illustrative computer-implemented method comprises identifying anatomical parameters of a knee joint, determining a subset of implant alignment options for a knee prosthesis when implanted from among a larger set of implant alignment options, where the subset consists of each implant alignment from the larger set that satisfies one or more flexion-extension gap criteria, determining a target ligament elongation of at least one ligament of the knee joint over a range of flexion based on pre-implantation anatomy, determining, for each implant alignment of the subset, a predicted ligament elongation of the at least one ligament over the range of flexion, identifying at least one recommended implant alignment of the knee prosthesis based on the target ligament elongation and the predicted ligament elongations, and incorporating the at least one recommended implant alignment into a patient-specific surgical plan.

Abstract: Apparatus, systems, and methods for developing patient-specific surgical plans are disclosed. One illustrative computer-implemented method comprises identifying anatomical parameters of a knee joint of a patient, determining target kinematics of the knee joint based on the patient's pre-implantation anatomy, determining predicted kinematics for a number of implant alignment options for a knee prosthesis when implanted in the knee joint, identifying a recommended implant alignment of the knee prosthesis based on the target kinematics and the predicted kinematics of the knee prosthesis, and preparing a patient-specific surgical plan incorporating the recommended implant alignment.

Abstract: An apparatus, system, and method for determining a position of a hip prosthesis in a bone of a patient includes determining a set of contact points between a femoral head of a femoral prosthesis and a cup liner of an acetabular cup to be implanted into a patient based on a mechanics model. The mechanics model is indicative of mechanical motion of a hip exhibited during performance of a set of ADL or at corresponding functional positions of the patient. In some embodiments, a mathematical model may be generated based on a plurality of sets of contact points determined using the mechanics model and subsequently used to determine a resultant set of contact points.

Abstract: An apparatus, system, and method for determining a position of a hip prosthesis in a bone of a patient includes determining a set of contact points between a femoral head of a femoral prosthesis and a cup liner of an acetabular cup to be implanted into a patient based on a mechanics model. The mechanics model is indicative of mechanical motion of a hip exhibited during performance of a set of ADL or at corresponding functional positions of the patient. In some embodiments, a mathematical model may be generated based on a plurality of sets of contact points determined using the mechanics model and subsequently used to determine a resultant set of contact points.

Abstract: An orthopaedic surgical instrument system includes a sensor adapter and multiple surgical instruments. The sensor adapter includes a housing with a force sensor positioned within the housing and a sensor contact configured to transfer force to the force sensor extending from the housing. Each surgical instrument includes a sensor connector configured to receive the sensor adapter at a predetermined location relative to the surgical instrument. Each sensor adapter further includes a registering feature to engage an anatomical feature of a patient or another surgical instrument. The surgical instruments may include a shim that may be attached to a gap assessment tool or a tibial insert trial. Methods associated with the surgical instrument system are also disclosed.

Abstract: A surgical instrument system and method are disclosed. The surgical instrument system includes an instrument case and a charging plate that may be placed in a sterile surgical field. The charging plate is configured to receive electrical power from outside the sterile surgical field and transmit that electrical power to other devices within the sterile field.

Abstract: A system for use in conjunction with a hip prosthesis is shown. A customized patient-specific acetabular orthopaedic surgical instrument and a customized patient-specific femoral orthopaedic surgical instrument are disclosed. A method for fabricating and using the orthopaedic surgical instruments is also disclosed. A method for using the customized patient-specific acetabular orthopaedic surgical instrument is disclosed. A method for using the customized patient-specific femoral orthopaedic surgical instrument is disclosed.

Abstract: A system for use in conjunction with a hip prosthesis is shown. A customized patient-specific acetabular orthopedic surgical instrument and a customized patient-specific femoral orthopedic surgical instrument are disclosed. A method for fabricating and using the orthopedic surgical instruments is also disclosed. A method for using the customized patient-specific acetabular orthopedic surgical instrument is disclosed. A method for using the customized patient-specific femoral orthopedic surgical instrument is disclosed.

Abstract: A surgical instrument system and method are disclosed. The surgical instrument system includes an instrument case and a charging plate that may be placed in a sterile surgical field. The charging plate is configured to receive electrical power from outside the sterile surgical field and transmit that electrical power to other devices within the sterile field.

Abstract: A surgical instrument system is disclosed. The surgical instrument system includes an instrument case and a charging plate that may be placed in a sterile surgical field. The charging plate is configured to receive electrical power from outside the sterile surgical field and transmit that electrical power to other devices within the sterile field.

Abstract: A system for use in conjunction with a hip prosthesis is shown. A customized patient-specific acetabular orthopaedic surgical instrument and a customized patient-specific femoral orthopaedic surgical instrument are disclosed. A method for fabricating and using the orthopaedic surgical instruments is also disclosed. A method for using the customized patient-specific acetabular orthopaedic surgical instrument is disclosed. A method for using the customized patient-specific femoral orthopaedic surgical instrument is disclosed.

Abstract: An acetabular hip implant includes an acetabular shell component, a first insert secured to the acetabular shell component, a second insert secured to the first insert, and a femoral head configured to be secured to the second insert. The first insert is permitted to rotate relative to the acetabular shell about a first axis, the second insert is permitted to rotate relative to the first insert about a second axis, and the femoral head is permitted to rotate relative to the second insert about a third axis. A method for performing an orthopedic surgical procedure on an acetabulum of a patient is also disclosed.

Abstract: A surgical instrument system is disclosed. The surgical instrument system includes an instrument case and a charging plate that may be placed in a sterile surgical field. The charging plate is configured to receive electrical power from outside the sterile surgical field and transmit that electrical power to other devices within the sterile field.

Abstract: An acetabular hip implant includes an acetabular shell component, a first insert secured to the acetabular shell component, a second insert secured to the first insert, and a femoral head configured to be secured to the second insert. The first insert is permitted to rotate relative to the acetabular shell about a first axis, the second insert is permitted to rotate relative to the first insert about a second axis, and the femoral head is permitted to rotate relative to the second insert about a third axis. A method for performing an orthopaedic surgical procedure on an acetabulum of a patient is also disclosed.

Abstract: A method for performing an orthopaedic surgical procedure on an acetabulum of a patient includes the steps of securing an acetabular shell component to an acetabulum of a patient and securing a first insert to an acetabular shell component configured to be implanted within an acetabulum of a patient. The method further includes the steps of securing a second insert to the first insert such that the outer surface of the second insert contacts the inner surface of the first insert and securing a femoral head configured to be secured to a femoral stem to the second insert such that the outer surface of the femoral head contacts the inner surface of the second insert.

Abstract: A method for performing an orthopaedic surgical procedure on an acetabulum of a patient includes the steps of securing an acetabular shell component to an acetabulum of a patient and securing a first insert to an acetabular shell component configured to be implanted within an acetabulum of a patient. The method further includes the steps of securing a second insert to the first insert such that the outer surface of the second insert contacts the inner surface of the first insert and securing a femoral head configured to be secured to a femoral stem to the second insert such that the outer surface of the femoral head contacts the inner surface of the second insert.

Abstract: An acetabular hip implant includes an acetabular shell component, a first insert secured to the acetabular shell component, a second insert secured to the first insert, and a femoral head configured to be secured to the second insert. The first insert is permitted to rotate relative to the acetabular shell about a first axis, the second insert is permitted to rotate relative to the first insert about a second axis, and the femoral head is permitted to rotate relative to the second insert about a third axis.

Abstract: An acetabular hip implant includes an acetabular shell component, a first insert secured to the acetabular shell component, a second insert secured to the first insert, and a femoral head configured to be secured to the second insert. The first insert is permitted to rotate relative to the acetabular shell about a first axis, the second insert is permitted to rotate relative to the first insert about a second axis, and the femoral head is permitted to rotate relative to the second insert about a third axis.