Abstract: An implant-trialing instrument for objectively determining a recommended implant size based at least in part on results of inserting a pressure sensitive trial implant into the intervertebral space. The trial implant instrument can include a handle coupled to a pressure sensitive trial. The handle can include an elongate shaft. The pressure sensitive trial implant can be disposed on a distal end of the elongate shaft and include a superior end plate surface configured to engage a first end plate of a first vertebral body and an inferior end plate configured to engage a second end plate of a second vertebral body. The pressure sensitive trial implant also includes a pressure sensitive film disposed on at least one of the superior end plate and the inferior end plate.

Abstract: An implant-trialing instrument for objectively determining a recommended implant size based at least in part on results of inserting a pressure sensitive trial implant into the intervertebral space. The trial implant instrument can include a handle coupled to a pressure sensitive trial. The handle can include an elongate shaft. The pressure sensitive trial implant can be disposed on a distal end of the elongate shaft and include a superior end plate surface configured to engage a first end plate of a first vertebral body and an inferior end plate configured to engage a second end plate of a second vertebral body. The pressure sensitive trial implant also includes a pressure sensitive film disposed on at least one of the superior end plate and the inferior end plate.

Abstract: An implant-trialing instrument for objectively determining a recommended implant size based at least in part on pressure sensor measurements can include a handle and an adjustable implant trial. The handle can include an elongate body and an adjustment input. The adjustable implant trial can be disposed on a distal end of the elongate body and be adapted to expand within an intervertebral space in response to input from the adjustment input, the adjustable implant trial can include a measurement sensor configured to output an objective measure of intervertebral disc space correlated to implant size. A method of utilizing the implant-trialing instrument can include operations such as distracting the adjustable trialing mechanism, determining whether the pressure measurement satisfies a pre-defined pressure criterion, and recommending an implant size.

Abstract: The present disclosure provides a cut guide for use in preparation of the distal femur to form the anterior, anterior chamfer, distal, posterior chamfer and posterior facets as well as the intercondylar box cuts utilized to prepare a femoral intercondylar box. To allow for the use of a single cutting guide to make all of these femoral osteotomies, the present disclosure implements an orthopedic guide assembly including a primary guide body with a secondary guide body rotatably connected to the primary guide body. With this configuration, the secondary guide body can be rotated into an operable position to guide a femoral osteotomy and may also be rotated into an inoperable position in which it is moved from a configuration (i.e., the operable position) in which it acts as a barrier to movement of an osteotome across a guide surface of the primary guide body.

Abstract: The present disclosure provides a cut guide for use in preparation of the distal femur to form the anterior, anterior chamfer, distal, posterior chamfer and posterior facets as well as the intercondylar box cuts utilized to prepare a femoral intercondylar box. To allow for the use of a single cutting guide to make all of these femoral osteotomies, the present disclosure implements an orthopedic guide assembly including a primary guide body with a secondary guide body rotatably connected to the primary guide body. With this configuration, the secondary guide body can be rotated into an operable position to guide a femoral osteotomy and may also be rotated into an inoperable position in which it is moved from a configuration (i.e., the operable position) in which it acts as a barrier to movement of an osteotome across a guide surface of the primary guide body.