ANAT30007 Lecture Notes - Lecture 26: Plantar Fascia, Calcaneocuboid Joint, Anatomical Terms Of Location
10 Jun 2018
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Part of TCN joint articular surface
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Supports apex of medial longitudinal arch
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Spring (plantar calcaneonavicular) ligament supports talus inferiorly
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Between subtalar & TCN joints in ‘sinus tarsi’
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Allows inversion/eversion (axis passes though it) & limits excess inversion/eversion.
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Interosseous talocalcaneal ligament
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Lateral continuation of interosseous talocalcaneal ligament
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Helps limit inversion
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Cervical Ligament of Talus
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On dorsolateral foot
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2 parts support TCN & calcaneocuboid joints
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Bifurcate Ligament
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Plantar Aponeurosis
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Ligaments of tarsals
Locomotor Page 6
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Between calcaneus and MT heads
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Binds skin of foot for grip & protection
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Strong, maintains long arches of foot
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Fibro-fatty tissue of foot is superficial
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Plantar fasciitis: inflammation at the attachment to calcaneus of plantar aponeurosis
(from overuse, e.g. marathon walking, jumping)
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Bone spurs: esp on calcaneus
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Clinical significance:
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From calcaneus to cuboid & MT bases (3-5)
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Forms retinaculum for fibularis longus
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Supports lateral longitudinal arch
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Long Plantar Ligament
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From calcaneus to proximal cuboid
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Deep to long plantar ligament
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Supports lateral longitudinal arch
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Short Plantar Ligament
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Toe joints and ligaments
Locomotor Page 7
Document Summary
Bet(cid:449)ee(cid:374) su(cid:271)talar & tcn joi(cid:374)ts i(cid:374) (cid:858)si(cid:374)us tarsi(cid:859) Allows inversion/eversion (axis passes though it) & limits excess inversion/eversion. Binds skin of foot for grip & protection. Plantar fasciitis: inflammation at the attachment to calcaneus of plantar aponeurosis (from overuse, e. g. marathon walking, jumping) From calcaneus to cuboid & mt bases (3-5) Ip joints: modified hinge (f/ e), with some rotation e. g. during inversion big toe and second toe flex at ip joint and rotate. Deep transverse mt ligament: links volar plates of mp joints, including hallux (non- opposable) In joint capsule at mtp & ip joints. Medial: calcaneus, talus (apex), navicular, 3 cuneiforms, medial 3 metatarsals, +/- sesamoid. Lateral: calcaneus, talus, cuboid, lateral cuneiform, metatarsals 4-5. 1 transverse arch (hemi-arch on each foot): cuboid, cuneiforms, bases of mts. With age and inactivity, short/long plantar ligaments lose elasticity and become lax (fallen arch)
