Medial Cuneiform

Question 1

Medial cuneiform

Answer 1

dorsal surface is apex of wedge
more of crest or border than surface
palpable subcutaneously

Question 2

Plantar surface and partial attachments (3)

Answer 2

base of medial cuneiform
partial insertion of three muscles:
tibialis anterior
tibialis posterior
peroneus longus

Question 3

Ligaments attached to plantar surface (4)

Answer 3

plantar cuneonavicular
plantar intercuneiform
plantar cuneometatarsal to first metatarsal
plantar cuneometatarsal to second metatarsal

Question 4

Medial surface of medial cuneiform

Answer 4

quadrilateral shape
palpable subcutaneously
no articulation with other tarsal bone
contains small facet near anteroinferior aspect (small bursa between this facet and sesamoid bone of tendon of tibialis anterior)

Question 5

Ligaments attached to medial surface (5)

Answer 5

medial cuneonavicular
dorsal cuneonavicular
dorsal intercuneiform
dorsal cuneometatarsal to first metatarsal
dorsal cuneometatarsal to second metatarsal

Question 6

Lateral surface of medial cuneiform

Answer 6

concave with two articular facets:
Oval - anteriorly; for base of second metatarsal
L-shaped - horizontal portion superior - for intermediate cuneiform

Question 7

Ligaments attached to lateral surface (2)

Answer 7

Lisfranc’s ligament - interosseous tarsometatarsal ligament attaches lateral medial cuneiform to second metatarsal
Interosseous intercuneiform ligament to intermediate cuneiform

Question 8

Anterior surface of medial cuneiform

Answer 8

kidney shaped

articulates with base of first metatarsal

Question 9

Posterior surface of medial cuneiform

Answer 9

concave
articulates with navicular
facet can be triangular, pear-shaped or quadrilateral