Disclosed is a surgical instrument that comprises a handle, a trigger pivotably coupled to the handle, wherein the trigger is movable between a first position and a second position. The surgical instrument further comprises a shaft extending from the handle, wherein the shaft comprises a distal end forming a hook. The surgical instrument further comprises a clamp arm extending from the handle and mechanically coupled to the trigger, wherein movement of the trigger from the first position toward the second position moves the clamp arm toward the hook. The surgical instrument further comprises a ratchet mechanism mechanically coupled to the clamp arm, wherein the ratchet mechanism is configured to prevent movement of the trigger toward the first position at incremental positions between the first position and the second position.

A method of preparing a metatarsophalangeal joint for fusion may involve surgically accessing the metatarsophalangeal joint and separating the metatarsal from the opposed proximal phalanx at the joint. The technique may involve preparing an end of the metatarsal and preparing an end of the opposed proximal phalanx for fusion. With or without the aid of a bone positioner, the metatarsal may be moved in one or more planes, such as the frontal and transverse planes. The proximal phalanx may also be moved in one or more planes, for example relative to the moved metatarsal. Subsequently, a bone fixation device can be applied across or through the metatarsophalangeal joint separating the metatarsal from the opposed proximal phalanx.

An anatomical gripping system comprising: a binding comprising: a substantially rigid spine; a calf shell mounted to the substantially rigid spine; an anterior shell; and a clamping mechanism connecting the anterior shell to the calf shell; wherein the calf shell comprises a flexible portion configured to selectively engage the superior portion of the calcaneus bone of a patient; and further wherein when the clamping mechanism applies a force to the flexible portion of the calf shell, the flexible portion of the calf shell is drawn into engagement with the superior portion of the calcaneus bone of the patient.

An apparatus and methods are provided for a bone fusion plate for treating deformities of the hallux. The bone fusion plate includes a width and a length and screw hole position and trajectory suitable for fixating a 1.sup.st metatarsal bone and a metatarsal head during a straight distal osteotomy to correct a hallux valgus deformity of a patient. The bone fusion plate includes a plate portion comprising a lower, distal surface and a buttress comprising a proximal surface. The distal surface fastens onto the metatarsal head while the proximal surface fastens onto a proximal bone surface exposed by cutting the 1.sup.st metatarsal bone and laterally shifting the metatarsal head during the straight distal osteotomy. Threaded countersunk screw holes in the buttress and the plate portion receive bone screws for fastening onto the 1.sup.st metatarsal bone and the metatarsal head. The countersinks prevent the bone screws from irritating surrounding soft tissues.

A surgical tool includes a body defining an opening sized and configured to receive a first bone portion therein, a displacement tip coupled to a first end of the body, the displacement tip sized and configured for insertion into a medullary canal of a second bone portion, and a deployable retention block configured to be transitioned from a first position to a second position. The deployable retention block is configured to maintain the first bone portion in a predetermined position when the deployable retention block is in the second position.

A system and method for performing a percutaneous bunionectomy. The system including a jig, which subsequent to attachment and performance of an osteotomy on the bone, uses a rack and pinion mechanism to translate the separated portion of the bone to a surgeon determined displacement λ. A locking mechanism maintains the desired displacement of the bone portions and allows the surgeon, with use of an attached visual guide, to insert a k-wire through the bone portions to serve as a guide wire for the internal fixation that maintains the displacement during the healing. The system removes the requirement that the surgeon manually maintain the desired displacement while inserting the guide wire.

A system and method for reducing spondylolisthesis. The system includes a bracket comprising a first opening and a second opening, a first and second rod, and a first and second knob. The system may be placed onto a patient's back, the rods may be inserted through the first opening and the second opening and further into a first vertebral part and a second vertebral part. Tightening of a first knob and a second knob on the first and second rod allow for repositioning of the vertebra. Once repositioned, an interspinous implant may be inserted into the interspinous process space, connecting the vertebrae.

Osteotomy systems, devices, and methods for using the osteotomy systems are disclosed. The osteotomy system including an alignment device, at least one k-wire for insertion into the alignment device, and a cut guide with at least one hole for receiving at least one k-wire and a slot for receiving a saw blade. An osteotomy kit including an alignment device, cut guide, and position rotation device. The alignment device, cut guide, position rotation device, and bone plate are also disclosed. Finally, a method for fusing bones using the osteotomy system is also disclosed.

Disclosed herein is a patella clamp configured to grip a patient's patella. The patella clamp includes a clamping assembly, a ratchet arm assembly, and a handle assembly. The clamping assembly includes first and second patella grip portions mounted in opposing relationship. In use, actuation of the handle assembly moves the second patella grip portion towards the first patella grip portion to clamp the patient's patella. The handle assembly is configured to be moveably adjustable (e.g., rotatable) relative to the clamping assembly. For example, each of the first and second patella grip portions are coupled to mating features mounted on the ratchet arm assembly. Decoupling of the mating features allows the first and second patella grip portions to rotate about the longitudinal axis of the ratchet arm assembly. Thus arranged, the patella clamp is configured to enable the surgeon to reposition the handle assembly to provide increased visibility, etc.

In some examples, a method for preparing one or more bones involves inserting a spacer into a space defined between a first bone and a second bone, such as a joint space between a first metatarsal and medial cuneiform. A bone preparation guide can be aligned with opposed ends of the first bone and the second bone using the spacer as an alignment reference. For example, the bone preparation guide may include an opening such that the guide can be installed across the joint space with the spacer received in the opening. A clinician may use the bone preparation guide to guide a tissue removing instrument to cut or otherwise prepare the ends of the first bone portion and second bone portion.