Abstract: A system for harvesting bone material from a bone may include a rotary cutter defining a rotary cutter longitudinal axis extending between a rotary cutter proximal end and a rotary cutter distal end. The rotary cutter may have a drive shaft configured to receive input torque, and an osteochondral cutter configured to cut the tissue and receive the tissue material in response to rotation of the osteochondral cutter under pressure against the tissue. The system may further include a bone port defining a bone port longitudinal axis extending between a bone port proximal end and a bone port distal end. The bone port may have a bone port cannulation sized to closely fit over the osteochondral cutter. At least one of the bone port proximal end and the bone port distal end may be securable to the tissue. A stratiform tissue graft may be delivered through the bone port.

Abstract: A bone screw may be insertable into a bone. The bone screw may have a distal member with bone-engaging threads, a proximal member configured to slidably engage the distal member, and a tension member with a proximal end coupled to the proximal member, and a distal end coupled to the distal member such that, in response to motion of the distal member away from the proximal member, the tension member elongates and urges the distal member to move toward the proximal member.

Abstract: A system for harvesting bone material from a bone may include a rotary cutter defining a rotary cutter longitudinal axis extending between a rotary cutter proximal end and a rotary cutter distal end. The rotary cutter may have a drive shaft configured to receive input torque, and an osteochondral cutter configured to cut the tissue and receive the tissue material in response to rotation of the osteochondral cutter under pressure against the tissue. The system may further include a bone port defining a bone port longitudinal axis extending between a bone port proximal end and a bone port distal end. The bone port may have a bone port cannulation sized to closely fit over the osteochondral cutter. At least one of the bone port proximal end and the bone port distal end may be securable to the tissue. A stratiform tissue graft may be delivered through the bone port.

Abstract: A system for harvesting bone material from a bone may include a rotary cutter defining a rotary cutter longitudinal axis extending between a rotary cutter proximal end and a rotary cutter distal end. The rotary cutter may have a drive shaft configured to receive input torque, and an osteochondral cutter configured to cut the tissue and receive the tissue material in response to rotation of the osteochondral cutter under pressure against the tissue. The system may further include a bone port defining a bone port longitudinal axis extending between a bone port proximal end and a bone port distal end. The bone port may have a bone port cannulation sized to closely fit over the osteochondral cutter. At least one of the bone port proximal end and the bone port distal end may be securable to the tissue. A stratiform tissue graft may be delivered through the bone port.

Abstract: A system for harvesting bone material from a bone may include a rotary cutter defining a rotary cutter longitudinal axis extending between a rotary cutter proximal end and a rotary cutter distal end. The rotary cutter may have a drive shaft configured to receive input torque, and an osteochondral cutter configured to cut the tissue and receive the tissue material in response to rotation of the osteochondral cutter under pressure against the tissue. The system may further include a bone port defining a bone port longitudinal axis extending between a bone port proximal end and a bone port distal end. The bone port may have a bone port cannulation sized to closely fit over the osteochondral cutter. At least one of the bone port proximal end and the bone port distal end may be securable to the tissue. A stratiform tissue graft may be delivered through the bone port.

Abstract: A first bone portion may be secured to a second bone portion by forming a hole in the first bone portion and the second bone portion and inserting a bone screw into the hole. The bone screw may have a proximal member, a distal member, and a tension member with a proximal end coupled to the proximal member and a distal end coupled to the distal member. Torque may be applied to the bone screw to move the distal member away from the proximal member such that the tension member elongates and urges the distal member to move toward the proximal member. The torque may be transmitted from the proximal member to the distal member via a torque transmission feature. A bending transmission feature, displaced proximally or distally from the torque transmission feature, may be positioned to share bending loads between the proximal member and the distal member.

Abstract: A bone screw may be insertable into a bone, and may have a proximal member, a distal member with bone-engaging threads, wherein the distal member is configured to slidably engage the proximal member such that a variable-length cavity is defined within the proximal member and the distal member, and a tension member residing at least partially within the variable-length cavity. The tension member may have a proximal end coupled to the proximal member and a distal end coupled to the distal member such that, in response to motion of the distal member away from the proximal member, the tension member elongates and urges the distal member to move toward the proximal member. The proximal member and the distal member may be interconnected to share bending loads at a bending transmission feature.

Abstract: A positioning device for ankle joint replacement surgery.

Abstract: A positioning device for ankle joint replacement surgery.

Abstract: Systems and methods for stabilizing portions of bone are provided. In some aspects, a bone plate system includes a plate configured to be fastened to at least one bone portion. The plate includes a keel slot and a locking assembly. The bone plate system also includes a keel configured to extend into the at least one bone portion through the keel slot. The locking assembly is configured to substantially prevent the keel from dislodging from the plate when the keel extends into the at least one bone portion through the keel slot.

Abstract: A positioning device for ankle joint replacement surgery.

Abstract: Systems and methods for stabilizing portions of bone are provided. In some aspects, a bone fixation system can include a plate configured to be fastened to a growing bone to control growth of the bone in at least one direction. The system can include a keel structure having a longitudinal axis. The keel can extend from the plate into the bone to permit bone growth along the keel longitudinal axis on one side of the bone while the plate generally inhibits growth on the other side of the bone.

Abstract: Systems and methods for stabilizing portions of bone are provided. In some aspects, a bone plate system includes a plate configured to be fastened to at least one bone portion. The plate includes a keel slot and a locking assembly. The bone plate system also includes a keel configured to extend into the at least one bone portion through the keel slot. The locking assembly is configured to substantially prevent the keel from dislodging from the plate when the keel extends into the at least one bone portion through the keel slot.

Abstract: A positioning device for ankle joint replacement surgery.

Abstract: Methods of implanting an ankle prosthesis in a subject having an ankle joint in need of replacement.

Abstract: Systems and methods for stabilizing and/or compressing portions of bone are provided. In some aspects, a bone plate system may comprise a plate having a bone engaging surface. The plate may be fastened to two bone portions having a joint line therebetween. The system may also include a keel projecting from the bone engaging surface. The keel may extend into the bone portions and span the joint line when the plate is fastened to the bone portions. In some aspects, a ratio of an average thickness of the plate to an average width of the plate may be less than or equal to about 0.11.

Abstract: Systems and methods for stabilizing and/or compressing portions of bone are provided. In some aspects, a bone plate system may comprise a plate having a bone engaging surface. The plate may be fastened to two bone portions having a joint line therebetween. The system may also include a keel projecting from the bone engaging surface. The keel may extend into the bone portions and span the joint line when the plate is fastened to the bone portions. In some aspects, a ratio of an average thickness of the plate to an average width of the plate may be less than or equal to about 0.11.

Abstract: Methods of implanting an ankle prosthesis in a subject having an ankle joint in need of replacement.

Abstract: A method according to embodiments of the present invention for repairing an Achilles tendon that has completely or partially ruptured leaving a distal stump extending from a calcaneus and a proximal stump, the proximal stump having a proximal stump end, and the distal stump having a distal stump end, includes attaching a first suture to the distal stump, positioning an augmentation patch against an anterior portion of the Achilles tendon, attaching a second suture to the proximal stump and to the augmentation patch, apposing the proximal stump end and the distal stump end such that a gap between the proximal stump end and distal stump end is minimized or eliminated, joining the first suture with the second suture to secure the proximal stump to the distal stump, and attaching the augmentation patch to the calcaneus.

Abstract: A fixed-bearing ankle prosthesis may include tibial and talar components whose articulating surfaces directly contact one another. The tibial component defines medial and lateral concave condylar facets separated by a convex central portion. The talar component includes medial and lateral convex condyles separated by a concave central portion. The condyles each have a single radius of curvature in a medial-lateral plane such that each condyle has a circular-arc cross-section continuously extending from the respective medial or lateral edge of the talar component to the concave central portion. The medial-lateral radii of the condyles are smaller than corresponding radii of the condylar facets.