A system for modifying a talocalcaneal spatial relationship in a foot in a body, including a subtalar spacer having an articulating surface and implanted in the sinus tarsi of the foot and a fastener that fastens the subtalar spacer to a bone surface in the foot, in which the articulating surface of the subtalar spacer directs relative movement between the calcaneus and the talus of the foot.

A distraction kit including at least one trial insert, at least one handle for coupling to the at least one trial insert, a correction indication guide, and at least one implant. A method for performing a distraction arthrodesis including inserting at least one trial insert into a joint and selecting a trial insert of the at least one trial insert for correction of the joint in a first plane. The method also including rotating the selected trial insert in a medial-lateral direction for correction of the joint in a second plane and selecting the needed correction in the first plane and the second plane. The method further including marking at least one bone for the selected correction. Then, marking the implant with the correction indication guide to achieve proper placement of the implant and joint correction replication from the desired trial positioning. Implants, devices, and systems are also disclosed.

A subtalar joint prosthesis that is adapted to replace the natural subtalar joint that exists between a patient's talus and calcaneus bones includes talar and calcaneal components. Each of these is configured to have a shape that is herein defined as being a portion of the boundary surface of a frustum. Meanwhile, these components' inner surfaces are configured to: (a) generally follow the anatomic contour of the original joint surface to which each component is to be attached, and (b) minimize each components's average thickness, consistent with providing sufficient strength and rigidity for the components, so as to require minimum bone resection for the implantation of these components.

A subtalar arthroereisis screw may have a head and a body with a distal tip, a shank extending from the head to the distal tip, and a screw thread extending along the shank. The shank may have a leading end proximate the distal tip and a trailing end proximate the head. The screw thread may be continuously variable between a first pitch relatively closer to the trailing end, and a second pitch, larger than the first pitch, relatively closer to the leading end. The head may have a receiving end that is connectable to a tool to facilitate rotation of the head with the tool during implantation of the subtalar arthroereisis screw. The screw thread may taper continuously from a first major diameter at the trailing end, to a second major diameter, smaller than the first major diameter, and may have a plurality of notches distributed along its length.

An osteotomy implant device includes a housing defining a cavity and having a central plane extending therethrough. The housing includes a first bone engaging surface and a second bone engaging surface. The second bone engaging surface disposed on an opposing side of the central plane from the first bone engaging surface. The osteotomy implant device also includes a cutting member. The cutting member rotatable coupled to the housing. The cutting member rotatable about an axis between a first position and a second position. The cutting member entirely disposed within the cavity between the first bone engaging surface and the second bone engaging surface in the first position. A portion of the cutting member extends beyond at least the first bone engaging surface or the second bone engaging surface of the housing in the second position.

Provided is a system and method for providing a non-binding allograft subtalar joint implant for surgical implant into a person's foot proximate to the ankle. This system for repair includes at least one sterile non-binding allograft subtablar joint implant provided as a pre-formed allograft rod plug “ARP” having a diameter about equal to an average width of a canal between a person's talus and calcaneus bones, the ARP being resiliently compressible and flexible. When snuggly disposed between the person's talus and calcaneus bones, the ARP compresses during normal use of the person's foot and maintains the canal in an anatomically correct alignment and reduces a tendency for abnormal motion between the person's talus and calcaneus bones. An associated method of use is also provided.

A system for modifying a talocalcaneal spatial relationship in a foot in a body, including a subtalar spacer having an articulating surface and implanted in the sinus tarsi of the foot and a fastener that fastens the subtalar spacer to a bone surface in the foot, in which the articulating surface of the subtalar spacer directs relative movement between the calcaneus and the talus of the foot.

An osteotomy implant device includes a housing defining a cavity and having a central plane extending therethrough. The housing includes a first bone engaging surface and a second bone engaging surface. The second bone engaging surface disposed on an opposing side of the central plane from the first bone engaging surface. The osteotomy implant device also includes a cutting member. The cutting member rotatable coupled to the housing. The cutting member rotatable about an axis between a first position and a second position. The cutting member entirely disposed within the cavity between the first bone engaging surface and the second bone engaging surface in the first position. A portion of the cutting member extends beyond at least the first bone engaging surface or the second bone engaging surface of the housing in the second position.

An implant system, alignment guide, bone fusion system and surgical method for correction of a flat foot or rocker-bottom deformity, such as a Charcot foot. The implant system includes a bone implant and an elongate member. The bone implant includes a proximal end, a distal end, a hole along a longitudinal axis, and at least one opening intersecting the hole. The elongate member includes a first end with a head portion, a second end with a coupling mechanism, and an opening along a longitudinal axis. The coupling mechanism of the elongate member engages the at least one opening to couple the bone implant to the elongate member.

A subtalar implant that can be expanded/contracted in vivo to adjust the amount of distraction applied to the subtalar joint of a patient and a related insertion device are disclosed herein. More specifically, the subtalar implant can expand both radially and also in the angle between the proximal and distal end of the outer component of the implant. The implant comprises an internal component that allows for the distal or proximal ends of the implant to be manipulated via the insertion device. The subtalar implant and the related insertion device permit a surgeon to adjust the implant construct to suit a particular patient.