Medial-plantar plate for medial column arthrodesis
View Patent ↗An article comprises a unitary plate configured to conform to a foot of a patient. The plate has a dorsal portion shaped to conform to a dorsal surface of a medial column of the foot and a plantar-medial portion shaped to conform to a medial surface of a first metatarsal of the foot and extend to a plantar surface of the first metatarsal. The plantar-medial portion is integrally attached to the dorsal portion. The plate has a plurality of apertures for receiving screws. The apertures include: a plurality of first apertures through the dorsal portion, adapted to receive a respective one or more first screws to be inserted into a dorsal surface of a talus of the foot, and at least one second aperture adapted to receive a second screw inserted through a plantar end of the plantar-medial portion into a first metatarsal of the foot.
1. An article, comprising:
a unitary plate configured to conform to a foot of a patient, the unitary plate having a dorsal portion shaped to conform to a dorsal surface of a medial column of the foot and a plantar-medial portion shaped to conform to a medial surface of a first metatarsal of the foot and extend to a plantar surface of the first metatarsal, the plantar-medial portion integrally attached to the dorsal portion, the unitary plate having a plurality of apertures for receiving screws, the apertures including:
a plurality of first apertures through the dorsal portion, including one or more apertures adapted to receive a respective one or more first screws to be inserted into a dorsal surface of a talus of the foot, and
at least one second aperture adapted to receive a second screw inserted through a plantar end of the plantar-medial portion into a first metatarsal of the foot,
wherein the dorsal portion of the unitary plate has a first row of first apertures and a second row of first apertures, the first and second rows of first apertures are configured to receive locking screws, and the second row of first apertures is longitudinally offset from the first row of first apertures.
2. The article of claim 1 , wherein the plantar portion further includes a compression slot.
3. The article of claim 2 , wherein the compression slot is proximate an anterior end of the unitary plate distal from the first apertures.
4. The article of claim 1 , wherein the plantar-medial portion comprises an oblique portion extending in a posterior-medial direction, the oblique portion configured to conform to the first metatarsal of the foot, and the second aperture is located in the oblique portion.
5. The article of claim 1 , wherein the foot has a navicular and a cuneiform, and the first apertures are arranged to permit inserting the first screws through the first apertures into each of the talus, the navicular, and the cuneiform.
6. The article of claim 1 , wherein the dorsal portion has a first average normal direction and the plantar-medial portion has a second average normal direction, and an angle between the first average normal direction and the second average normal direction is about 95 degrees.
7. An article, comprising:
a unitary plate configured to conform to a foot of a patient, the unitary plate having a lateral portion shaped to conform to a lateral surface of a lateral column of the foot, and a plantar portion shaped to extend to conform to a plantar surface of a cuboid bone of the foot, the plantar portion integrally attached to the lateral portion, the unitary plate having a plurality of apertures for receiving screws, the apertures including:
a plurality of first apertures through the lateral portion, including one or more apertures adapted to receive a respective one or more first screws to be inserted into a lateral surface of a calcaneus of the foot,
at least one second aperture adapted to receive a second screw inserted through the plantar portion into a cuboid bone of the foot; and
wherein the lateral portion of the unitary plate has a first row of first apertures and a second row of first apertures, the first and second rows of first apertures are configured to receive locking screws, and the second row of first apertures is longitudinally offset from the first row of first apertures.
8. The article of claim 7 , wherein the plantar portion further includes a compression slot proximate an anterior end of the unitary plate distal from the first apertures.
9. The article of claim 7 , wherein the plantar portion comprises an oblique portion extending in a plantar-posterior direction, the oblique portion configured to conform to the cuboid bone of the foot, and the second aperture is located in the oblique portion.
10. The article of claim 7 , wherein the lateral portion has a first average normal direction and the plantar portion has a second average normal direction, and an angle between the first average normal direction and the second average normal direction is about 95 degrees.