An electrically driven orthopedic impactor may include an adapter for interfacing between the adapter and a surgical implement. The adapter may have a first surface that transmits a forward impact energy and a second surface that transmits a reverse impact energy. The adapter can connect to the surgical implement and to the orthopedic impactor without the use of external tools. The adapter may connect to the impactor via a pushing motion and may disconnect from the impactor via a reciprocal sleeve. A sensor can communicate a spatial orientation of the adapter with respect to at least one reference point that is not located on the adapter or the impactor. A communication device may transmit frequency information or impact energy information to the impactor based on a type of surgical implement attached to the adapter.

Tools for cutting bone, specifically cutting a hemispherical cavity in bone. Preferably, tools including an adaptor device configured to provide independent control of the cutting orientation.

A reamer attachment system for attaching a reamer to a robotic arm comprises a reaming guide comprising a guide shaft and a collar attached to the guide shaft, a reamer shaft extending through the collar to articulate against the collar, and a reamer lock couplable to the reamer shaft to engage the collar and prevent axial displacement of the reamer shaft relative to the collar while permitting the reamer shaft to articulate against the collar. A method for collaborative reaming of a bone between a surgical robot and a surgeon comprises positioning a reamer guide at a location in a coordinate system for the surgical robot system using a robotic arm of the surgical robot, coupling a reamer to the reamer guide such that a reamer axis passes through the location, constraining movement of the reamer along the reamer axis, and pivoting the reamer at the location to remove bone.

A minimally invasive surgical procedure for replacing a hip joint is provided. A main incision is initiated at a point being a projection of a tip of a greater trochanter and extends proximally about a distance in the range of from 1 cm to 8 cm in line with the femoral axis. An inline capsulotomy is performed, while keeping muscles and posterior capsule intact, to expose the hip joint capsule for accessing the hip joint. The femoral canal is prepared for receipt of a femoral implant. The femoral head is resected and removed out of the acetabulum. A step of acetabular preparation is performed using a retractor comprising two tip rails, each tip rail having a plurality of tines. Related tools, devices, systems and methods are also provided.

A minimally invasive surgical procedure for replacing a hip joint is provided. A main incision is initiated at a point being a projection of a tip of a greater trochanter and extends proximally about a distance in the range of from 1 cm to 8 cm in line with the femoral axis. An inline capsulotomy is performed, while keeping muscles and posterior capsule intact, to expose the hip joint capsule for accessing the hip joint. The femoral canal is prepared for receipt of a femoral implant. The femoral head is resected and removed out of the acetabulum. A step of acetabular preparation is performed using a retractor comprising two tip rails, each tip rail having a plurality of tines. Related tools, devices, systems and methods are also provided.

A method for the production of a reamer, such as a burr for milling a patient's acetabular cavity, including a substantially hemispherical, hollow cutting body with a perforated wall. The method includes a step of forming at least one tooth by stamping the wall, during which an area of the thinned portion of the wall, adjacent to a hole, is pressed between a punch and an anvil.

A system, method and/or reamer driver device is provided having a domed external surface and a domed internal surface being concentric to the domed external surface thereby defining a hollow dome. At least one cutting tooth is disposed on the hollow dome. The cross-sectional thickness T measured substantially perpendicular to the crest of the at least one tooth is greater than the radial distance t between the external and internal domed surfaces.

Devices and methods for performing a surgical step or surgical procedure with visual guidance using an optical head mounted display are disclosed.

A computer-assisted surgery (CAS) system comprises a cup implanting device including a shaft having a tooling end and a handle end with a handle for being manipulated, the shaft having a longitudinal axis, the tooling end adapted to support a cup for being received in an acetabulum of a patient, and a rotation indicator having a visual guide representative of a device plane, wherein the device plane is in a known position and orientation relative to a center of the cup on the tooling end. A CAS processing unit includes at least one inertial sensor unit connected to the cup implanting device, the inertial sensor unit outputting three-axes readings and having a virtual preset orientation related to a reference axis of a pelvis of the patient, the virtual preset orientation being based on pre-operative imaging specific to the pelvis of the patient, the reference axis of the pelvis passing through a center of rotation of said acetabulum of the pelvis and through a reference landmark of the pelvis, wherein an instant three-axis orientation of the longitudinal axis of the cup implanting device is trigonometrically known relatively to the reference axis when the cup is in the acetabulum of the patient and the device plane passes through the reference landmark via the visual guide, the instant three-axis orientation used for calibrating the inertial sensor unit on the cup implanting device relative to the pelvis.

A method of calculating leg length discrepancy of a patient including: receiving patient bone data associated with a lower body of the patient; identifying anatomical landmarks in the patient bone data; orienting a first proximal landmark and a second proximal landmark relative to each other and an origin in a coordinate system; aligning a first axis associated with a first femur and a second axis associated with a second femur with a longitudinal axis extending in a distal-proximal direction, wherein the first and second distal landmarks are adjusted according to the alignment of the first and second axes; calculating a distance between the first and second distal landmarks in the distal-proximal direction along the longitudinal axis; and displaying at least one of the distance or a portion of the patient bone data on a display screen.