A patient-specific arthroplasty system comprising a database comprising preoperative data, ligament balancing tool data, and postoperative data associated with a plurality of patients, a preoperative evaluation module that receives preoperative data for a given patient, an analysis engine that analyzes the database, receives the preoperative data, and generates a surgical recommendation based on the preoperative data of the given patient and the analysis of the database, and a pin positioning block module that receives the surgical recommendation and determines a pin positioning block based on the surgical recommendation.

A device for preparing a femur of a patient for receipt of a knee implant in both extension and flexion relative to a resected tibia plateau based on applying tension to medial and lateral collateral ligaments of said patient, comprising a tibial baseplate, a tensioner, the tensioner comprising a tensioner body having a tensioner portion, the tensioner portion affixed to the tibial baseplate, and an expander arm comprising an elongated body portion, a superior side of the elongated body portion having a spiked tip adjacent a posterior end thereof. The spiked tip interacts with an intracondylar notch under tension. The expander arm is operatively connected to the tensioner body via the tensioner portion, the tensioner portion configured for use in selectively raising and lowering the expander arm relative to the tibial baseplate to apply tension to the medial and lateral collateral ligaments in extension or flexion.

A tibial tuberosity advancement (TTA) system is configured to maintaining a tuberosity in an advanced position relative to a tibial body. The TTA system includes an implant, a spacer, and a spacer fixation member.

A joint balancing insert with an actuated mechanism is for balancing a joint during a joint surgery is disclosed. The joint balancing insert includes a first plate, a second plate and an actuator there between. The second plate includes an integrated mounting portion for mounting a cutting block used to guide surgical cuts of the joint during the joint surgery. Various configurations of the integrated mounting portion may be implemented in the insert to provide for mounting various types of cutting blocks, such as cutting blocks for tibial cuts, femoral cuts, and distal femoral cuts.

Devices, kits, and methods that may be used to establish a distal femoral resection position or a proximal tibial resection position and a prosthetic gap in a total knee arthroplasty procedure are provided. Devices for establishing a distal femoral resection position or a proximal tibial resection position may comprise a support that attaches to and references a proximal resected tibia or distal resected femur and supports and establishes the position of a resection guide. A kit may comprise a device for establishing a distal femoral resection position or proximal tibial resection position and additional components that complement the device or facilitate application of the device during a total knee arthroplasty procedure. Methods for establishing a distal femoral resection position or a proximal tibial resection position are also provided.

Methods and apparatus for performing joint laxity measurement are disclosed. A retractor includes a plurality of spacers, such as plates, that are capable of being moved from a central portion of the retractor by a carriage mechanism. In some cases, the carriage mechanism may press against ramps connected to internal sides of the plates, thereby causing the plates to be displaced outwardly. In other cases, the carriage mechanism may include blades that rotate and press against the internal sides of the plates, thereby causing the plates to be displaced outwardly. The retractor is mounted on a surgical device configured to actuate the carriage mechanism. When the retractor is placed in a joint and the carriage mechanism is actuated, a measurement of the joint laxity may be determined based upon characteristics of the retractor and/or the surgical device.

A device for preparing a femur of a patient for receipt of a knee implant in both extension and flexion relative to a resected tibia plateau based on applying tension to medial and lateral collateral ligaments of said patient, comprising a tibial baseplate, a tensioner, the tensioner comprising a tensioner body having a tensioner portion, the tensioner portion affixed to the tibial baseplate, and an expander arm comprising an elongated body portion, a superior side of the elongated body portion having a spiked tip adjacent a posterior end thereof. The spiked tip interacts with an intracondylar notch under tension. The expander arm is operatively connected to the tensioner body via the tensioner portion, the tensioner portion configured for use in selectively raising and lowering the expander arm relative to the tibial baseplate to apply tension to the medial and lateral collateral ligaments in extension or flexion.

A force-sensing joint tensioner assembly, surgical system, and method of use is provided. The joint tensioner assembly can include a housing that is configured to receive a fluid from a pump and a movable member that is configured to translate relative to the housing as the fluid is pumped into the housing. The tensioner and/or a surgical system including the tensioner can further include a pressure sensor configured to sense a pressure exerted by the movable member as the movable member translates and distracts the patient's joint. A surgical computer system can be configured to determine a distraction distance of the joint according to a volume of the fluid pumped into the joint tensioner assembly by the pump and/or determine a pressure exerted by the movable member according to the pressure sensor.

A method includes providing a distraction device, and providing, separate from the distraction device, a disposable force sensor pod configured to be removably coupled to the distraction device. The method also includes communicating, by the disposable force sensor pod, information relating to distraction of a joint by the distraction device to a computing system.

The present disclosure provides an apparatus, system, and method for positioning, holding, and/or distracting the bones and associated ligaments and tissue of the knee during surgery. In one aspect of the present disclosure, a modular distractor system may provide enhanced structural stability and support of a patient's limb, resulting in a better outcome for the patient. In another aspect, a base plate and carriage assembly are provided for securing the distractor assembly to the operating room table and translating and/or tilting the distractor to accommodate the specific geometry of the limb and surgical operation. In a further aspect, modular distractor components are described which provide for interchangeability and a tailored approach that accommodates variable patient limb size and the specific surgical application. In another aspect, a cross support is disclosed which provides a snap fit to a single or multi-use patient positioner pad and support projections for skin distraction.