Disclosed herein are apparatuses and methods for performing joint balancing procedures. The apparatus may have femoral paddle and a tibial paddle attached to a housing. The housing may include a distraction mechanism to vary the space between the femoral paddle and the tibial paddle. The tibial paddle may lie entirely within the femoral paddle in a closed position. A load sensor may be placed in the femoral paddle to measure ligament tension. The apparatus may be inserted into a knee joint and positioned to remain within the knee joint during flexion and extension of the knee without everting a patella.

Measured forces applied by a medical professional during a gap assessment can be measured. A plurality of force sensors is placed at a lateral ankle position, a medial ankle position, a lateral foot position, and/or a medial foot position, and each detects an applied force during an abduction-adduction examination. Further, a computing device receives, from each of the plurality of sensors during the abduction-adduction examination, data representing an applied force occurring during the abduction-adduction examination at respective ones of the lateral ankle position, the medial ankle position, the lateral foot position, and the medial foot position. The computing device calculates, using the received data, respective peak applied forces during the abduction-adduction examination in extension and flexion, and provides information representing a correlation of the respective peak applied forces with other information.

A tunable implant, system, and method enables a tunable implant to be adjusted within a patient. The tunable implant includes a securing mechanism to secure the implant in the patient, a actuation portion that enables the implant to move and an adjustment portion that permits adjustment of the implant after the implant has been positioned within the patient. The method of adjusting the tunable implant includes analyzing the operation of the implant, determining if any adjustments are necessary and adjusting the implant to improve implant performance. The implant system includes both the tunable implant and a telemetric system that is operable to telemetrically receive data from the tunable implant where the data is used to determine if adjustment of the tunable implant is necessary. The system also includes an instrument assembly that is used for performing spinal surgery where the instrument assembly includes a mounting platform and a jig.

A system is disclosed herein for providing a kinetic assessment and preparation of a prosthetic joint comprising one or more prosthetic components. The system comprises a prosthetic component including sensors and circuitry configured to measure load, position of load on a curved surface, joint stability, range of motion, and impingement. In one embodiment, the system is for a cup and ball joint of a musculoskeletal system. The system further includes a computer having a display configured to graphical display quantitative measurement data to support rapid assimilation of the information. The kinetic assessment measures joint alignment under loading that will be similar to that of a final joint installation. The kinetic assessment can use trial or permanent prosthetic components. Furthermore, adjustments can be made to the applied load magnitude, position of load, and joint alignment by various means to fine-tune an installation.

An orthopaedic implant comprising: a body portion for replacing a missing joint or bone, or for supporting a joint or bone within a patient's body; a slot antenna for effecting wireless communication between the implant and an external device, wherein the slot antenna comprises a first surface in which is arranged a slot for receiving and/or transmitting wireless communication signals; wherein the slot antenna is comprised within the body portion, such that the slot is exposed to the environment outside of the implant.

A system and method for inserting and aligning an acetabular cup in the human pelvic bone, including selectively combining aspects of a vibratory BMD3 and an axially-impacting BMD4, including initially utilizing BMD3 vibratory insertion to partially insert and perfectly align the acetabular cup into the pelvis, and subsequently switching to a BMD4 controlled impaction technique to apply specific quantifiable forces for full seating and insertion, wherein the proven advantages of the vibratory insertion prototype with the advantages of the controlled impaction prototype are combined in a single device.

An orthopedic measurement system is disclosed to measure leg alignment. The measurement system includes a tri-axial gyroscope configured to measure movement of a leg. The gyroscope is coupled to a tibia of the leg. For example, the gyroscope can be placed in an insert or tibial prosthetic component that couples to the tibia. The gyroscope is used to measure alignment relative to the mechanical axis of the leg. The leg alignment measurement is performed by putting the leg through a first leg movement and a second leg movement. The gyroscope outputs angular velocities on the axes the sensor is rotated about. The gyroscope is coupled to a computer that calculates the alignment of the leg relative to the mechanical axis from the gyroscope measurement data.

A prosthetic component suitable for long-term implantation is provided. The prosthetic component measures a parameter of the muscular-skeletal system is disclosed. The prosthetic component comprises a first structure having at least one support surface, a second structure having at least one feature configured to couple to bone, and at least one sensor. The prosthetic component is a housing for the at least one sensor and electronic circuitry. The electronic circuitry is hermetically sealed from an external environment. The at least one sensor couples to the support surface of the first structure. The support surface of the first structure is compliant. The first and second structure are coupled together housing the at least one sensor and electronic circuitry.

Technologies for determining seating of an orthopaedic implant during an orthopaedic surgical procedure includes an impaction sensor and an impaction analyzer. The impaction sensor produces sensor data, in response to an impaction between an orthopaedic mallet and a surgical tool indicative of an initial impact and a secondary impact of the impaction. The impaction analyzer analyzes the sensor data to determine a temporal length between the initial and secondary impacts and determines whether the orthopaedic implant is sufficiently seated into the bone based on the temporal length,

A surgical upper computer for a total knee arthroplasty, and a total knee arthroplasty system, in the field of surgical devices. The surgical upper computer includes a processor, and a memory storing which, when executed, enable the processor to execute operating modes of the surgical upper computer, where the operating modes include: exhibiting information to be input, the information to be input including a dynamic change range of a joint flexion angle, and a relationship between the joint flexion angle and a pushing force applied or a gap formed between a femur and a tibia; applying a pushing force during a process of dynamically adjusting the joint flexion angle, and acquiring corresponding relationship data between the pushing force and the gap; and visually exhibiting the corresponding relationship data. Accordingly, the force and gap between soft tissues in the total knee arthroplasty can be acquired and exhibited in a reasonable manner.