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Foot Joints

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ajkim1's version from 2015-06-11 01:39

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Malleolar fork/ankle morticeLateral surface of the medial malleolus, inferior surface of the distal extremity of the tibia, medial surface of the lateral malleolus
Talar domeMedial, superior, lateral surfaces of the body of the talus
The ankle joint is _____axial and _____planarUniaxial; triplanar
Talocrural capsular lig. attachmentsMargins of the malleolar fork and talar dome
Talocrural capsular lig. lines the capsule and ascends into the _____Tibiofibular recess
Shortest and weakest of the lateral ankle ligs.ATFL
ATFL attachmentsAnterior border of the lateral malleolus and the lateral surface of the body of the talus
Capsular lig. of the lateral ankle ligs. composed of 1 or 2 bands separated by an aperture for vessels to the ankle jointATFL
Cord-like extra-capsular lig. of the lateral ankle ligs.Calcaneofibular lig.
Calcaneofibular lig. attachmentsAnterior border and apex of the lateral malleolus and the fibular spine on the lateral surface of the calcaneus
Lateral ankle lig. crossed superficially by the tendons of FL and FBCalcaneofibular lig.
Capsular lig. of the lateral ankle ligs. that almost courses in a transverse planePTFL
PTFL attachmentsInferior portion of the malleolar fossa and the lateral tubercle on the posterior surface of the body of the talus
Strongest and most deeply situated of the lateral ankle ligs.PTFL
All ligs. in this area are capsular ligs.Medial ankle ligs.
The superficial deltoid is crossed by the tendons of ______ and ______TP and FDL
Superficial deltoid ligs.Tibionavicular lig., calcaneotibial lig., posterior talotibial lig.
Lig. that blends with the spring lig.Tibionavicular lig.
Weakest component of the deltoid ligs.Tibionavicular lig.
Tibionavicular lig. attachmentsAnterior colliculus and dorsomedial aspect of the navicular
Calcaneotibial lig. attachmentsAnterior colliculus and sustentaculum tali
Strongest component of the deltoid ligs.Calcaneotibial lig.
PTTL attachmentsAnterior and posterior colliculus and the medial tubercle on the posterior surface of the body of the talus
Deep deltoid ankle lig.Anterior talotibial lig.
ATTL attachmentsAnterior colliculus and intercollicular groove and the medial surface of the body of the talus below the pear-shaped articular facet
Deep PTTL attachmentsPosterior colliculus and intermolecular groove and the medial tubercle on the posterior surface of the body of the talus
Most common position of the ankle during a sprainInverted and plantarflexed
Most common position of the ankle during a fractureWB supinated or pronated
Based on avoiding the anterior tibial vessels and the deep fibular nerve, which are located deep to the tendon of EHLAnterior portals
Anterior portals of ankle arthroscopyAnteromedial, anterocentral, anterolateral
Anteromedial ankle portalMedial to the TA tendon
Anterocentral ankle portalOver the EDL tendon
Anterolateral ankle portalLateral to the fibularis tertius tendon
Based on avoiding the tibial nerve and posterior tibial vesselsPosterior portals
Posterior portals of ankle arthroscopyPosterolateral and posteromedial
Posterolateral ankle portalLateral to the tendo calcaneus
Posteromedial ankle portalMedial to the tendo calcaneus
Structures viewed from anterior portalsMedial gutter, medial bend, sagittal groove, lateral bend, lateral gutter
Medial gutterArticular surfaces of medial malleolus and medial surface of the body of the talus, and ankle joint capsule and anterior talotibial lig.
Medial bendJunction of articular surfaces of the medial malleolus and tibial plafond, and medial shoulder of the body of the talus
Sagittal grooveArea between the trochlea and tibial plafond, and anterior tibial lip, synovial recess, and attachment of capsule of ankle joint
Lateral bendLateral shoulder of the body of the talus, articular surfaces of the tibial plafond and lateral malleolus, tibiofibular recess, anterior talofibular lig. and ankle joint capsule, tibiofibular synovial fringe
Lateral gutterArticular surfaces of the lateral malleolus and the lateral surface of the body of the talus, and the anterior talofibular lig.
All intertarsal joints are _____ and permit _____ and _____ motionSynovial; gliding; rotational
Joint determined by motion about a joint axisFunctional
Joint determined by a joint capsuleAnatomical
Functional joints (2)Subtalar and midtarsal
Anatomical joints (6)Posterior subtalar, talocalcaneonavicular, calcaneocuboid, cuneonavicular, intercuneiform, and cuneocuboid
Formed by 3 articular areas on the talus articulating with the corresponding areas on the calcaneusFunctional subtalar joint
Angles of the subtalar joint42 transverse, 48 frontal, 6 sagittal
Primary motion of the subtalar jointPronation and supination
Forefoot and midfoot move in relation to the rearfootOKC supination and pronation
Functional midtarsal joint/transverse tarsal joint/Chopart's joint/Cyma line (2)Calcaneocuboid and talonavicular joints
Angles of longitudinal axis of functional midtarsal joint75 frontal, 15 transverse, 9 sagittal
Angles of Oblique axis of functional midtarsal joint38 frontal, 52 transverse, 58 sagittal
Ligaments of the posterior subtalar joint (6)Posterior talocalcaneal capsular lig., anterior talocalcaneal lig. (spring lig.), posterior talocalcaneal lig., lateral talocalcaneal lig., medial talocalcaneal lig., interosseous talocalcaneal lig.
Encloses the posterior talocalcaneal articular surface of the talus and the posterior facet of the calcaneus, reinforced anteriorly by the interosseous talocalcaneal lig.Posterior talocalcaneal capsular lig.
Anterior talocalcaneal lig./Cervical lig. attachmentsLateral surface of the neck of the talus and the sinus tarsi of the calcaneus
Posterior talocalaneal lig. attachmentsLateral tubercle on the posterior surface of the body of the talus and the superior surface of the calcaneus
Lateral talocalcaneal lig. attachmentsLateral process on the lateral surface of the body of the talus and the lateral surface of the calcaneus
Medial talocalcaneal lig. attachmentsMedial tubercle on the posterior surface of the body of the talus and the posterior aspect of the sustentaculum tali
Limiting factor in subtalar joint motionInterosseous talocalcaneal lig.
Interosseous talocalcaneal lig. attachmentsSulcus tali and the calcaneal sulcus (occupies the tarsal canal)
3 components of the talocalcaneonavicular jointAnterior subtalar joint, talonavicular joint, articulation between the head of the talus and the fibrocartilaginous thickening of the plantar calcaneonavicular lig. (spring lig.)
Ligaments of the talocalcaneonavicular joint (4)Talocalcaneonavicular capsular lig., dorsal talonavicular lig., bifurcate log., plantar calcaneonavicular lig. (spring lig.)
Encloses the anterior subtalar joint, talonavicular joint, and the articulation of the head of the talus with the spring lig.Talocalcaneonavicular joint
Capsular lig. attaching to the dorsal surface of the neck of the talus and the dorsum of the navicularDorsal talonavicular lig.
Bifurcate lig. originSinus tarsi of the calcaneus
Calcaneonavicular/medial attachment of the bifurcate lig.Dorsolateral aspect of the navicular
Calcaneocuboid/lateral attachment of the bifurcate lig.Dorsomedial aspect of the cuboid
Soft tissue structures that occupy the sinus tarsiHoke's tonsil
Plantar calcaneonavicular lig/spring lig. attachmentsAnterior margin of the sustentaculum tali and the plantar surface of the navicular
Superior surface has fibrocartilage for articulation with the head of the talusSpring lig.
Supports the head of the talus between the sustentaculum tali and the plantar surface of the navicularSpring lig.
Forms a strong bond between the rearfoot and midfoot (3)Spring lig., short plantar lig., long plantar lig.
Only ligament in the foot with elastic fibersSpring lig.
Ligaments of the calcaneocuboid joint (5)Calcaneocuboid capsular lig., dorsal calcaneocuboid lig., bifurcate lig., short plantar lig., long plantar lig.
Encloses the articular surfaces of the calcaneus and cuboidCalcaneocuboid capsular lig.
Dorsal calcaneocuboid lig. attachmentsSinus tarsi of the calcaneus and the dorsum of the cuboid
Short plantar lig. attachmentsTubercle and transverse groove on the plantar surface of the calcaneus and the plantar surface of the cuboid posterior to the fibular ridge
One of the longest and strongest ligs. of the footLong plantar lig.
Long plantar lig. originPlantar surface of the calcaneus between the tuberosity and the tubercle
Long plantar lig. deep fiber attachmentFibular ridge and the tuberosity of the cuboid
Long plantar lig. superficial fiber attachmentPlantar surface of the bases of MT 2, 3, 4, 5
Superficial fibers of the long plantar lig. convert the fibular groove into a canal for passage of the tendon of _____FL
When a joint is present, the interosseous lig. _____ in sizeDecreases
The joint between the 1st cuneiform and 1st MT base, and the joint between the cuboid and the 5th MT base have _____ motionMore
Number of dorsal tarsometatarsal ligs.8
Interosseous tarsometatarsal ligs. attachments (3)Lateral surface of the 1st cuneiform and the medial surface of the 2nd MT base, medial surface of the 3rd cuneiform and the lateral surface of the 2nd MT base, lateral surface of the 3rd cuneiform and the medial surface of the 4th MT base
Number of plantar tarsometatarsal ligs.9
Attachment of the extra plantar tarsometatarsal lig. that doesn't attach to the normal tarsometatarsal articulations1st cuneiform to the 3rd MT base
The MT heads are interconnected at the plantar plates by the _____Deep transverse MT lig.
The deep transverse MT lig. in the first interspace divides into a dorsal and plantar component which surrounds the _____Conjoined tendon of adductor hallucis
Band of tissue that interconnects the superficial slips of the central portion of the plantar aponeurosis and helps maintain the position of the fat pads at the level of the MTPsSuperficial transverse MT lig.
Ligaments of lesser metatarsophalangeal joints (6)Metatarsophalangeal capsular lig., metatarsophalangeal plantar plate lig., collateral metatarsophalangeal ligs. (2), metatarsophalangeal suspensory/metatarsoglenoid ligs. (2)
Has a loose attachment to the MT head which allows for dorsiflexion and plantarflexionMetatarsophalangeal capsular lig.
Metatarsophalangeal capsular lig. attachmentsAnatomical neck of the MT and the edges of the base of the proximal phalanx
Capsular lig. that is actually a thickening of the plantar portion of the capsuleMetatarsophalangeal plantar plate lig.
Metatarsophalangeal plantar plate lig. attachmentsLoosely to the MT head and firmly to the base of the proximal phalanx
The plantar plate is smooth on its dorsal surface for articulation with the _____ and grooved on its plantar surface for the tendons of _____ and _____MT head; FDL; FDB
Attachments to the plantar plateFlexor sheaths and DTML
Shape of collateral metatarsophalangeal ligs.Cord-like extra capsular
Collateral metatarsophalangeal ligs. attachmentsTubercles on either side of the MT head and the tubercles on the base of a proximal phalanx
Shape of metatarsophalangeal suspensory ligs./metatarsoglenoid ligs.Triangular-shaped capsular ligs.
Metatarsophalangeal suspensory ligs./metatarsoglenoid ligs. attachmentsTubercles on either side of the MT head and the sides of the plantar plate
Ligaments of the plantar plateMetatarsosesamoid ligs. (2), phalangeosesamoid ligs. (2), intersesamoid lig.
Sesamoid apparatus is formed by (6)Tendon of FHB, tendon of abductor helices, conjoined tendon of adductor helices, sesamoids (2), plantar plate (including sesamoid ligaments)
Ligaments of interphalangeal joints (4)Interphalangeal capsular lig., interphalangeal plantar plate., collateral interphalangeal ligs. (2)
Synovial cavities in the foot20 (9 interphalangeal, 5 metatarsophalangeal, 6 within the intertarsal, tarsometatarsal, and intermetatarsal articulations)
Synovial cavities within the inter tarsal, tarsometatarsal, and intermetatarsal articulations (6)Posterior subtalar, calcaneocuboid, talocalcaneonavicular, lateral tarsometatarsal, medial tarsometatarsal, and greater tarsal
Encloses the posterior articular surface of the talus and the posterior facet of the calcaneusPosterior subtalar synovial cavity
Encloses the articulation between the calcaneus and the cuboidCalcaneocuboid synovial cavity
Encloses the middle and anterior facets of the talus and calcaneus, talonavicular articulation, and the articulation between the head of the talus and the spring lig.Talocalcaneonavicular synovial cavity
Encloses the tarsometatarsal articulations between the cuboid and the bases of the 4th and 5th MTs, and the intermetatarsal articulation between the bases of the 4th and 5th MTsLateral tarsometatarsal synovial cavity
Encloses the tarsometatarsal articulation between the 1st cuneiform and the base of the 1st MTMedial tarsometatarsal synovial cavity
Enclosed by the greater tarsal synovial cavityCuboideonavicular, cuneonaviculkr, inter cuneiform, cuneocuboid, intermediate tarsometatarsal (articulations between the cuneiforms and MT bases 2, 3, 4), intermetatarsal (articulations between MT bases 2, 3, and the MT bases 3, 4)
Posterior base of the longitudinal archTuberosity of the calcaneus
Anterior base of the longitudinal archMT heads and sesamoids
Body of the archMT and tarsal bones
Keystone of the longitudinal archTalus
Ligamentous medial support of the longitudinal archSpring lig.
Ligamentous lateral support of the longitudinal archShort and long plantar ligs.
Fibrous medial and lateral support of the longitudinal archCentral portion of the plantar aponeurosis
Muscular medial support of the longitudinal archTP and FHL
Muscular medial and lateral support of the longitudinal archFDL
Formation of the transverse archCuboid, cuneiforms, MT bases
Highest point of the transverse arch2nd cuneiform and 2nd MT base
Ligamentous supports of the transverse archInterosseous inter cuneiform, cuneocuboid, tarsometatarsal, and intermetatarsal ligs
Intrinsic muscular support of the transverse archAdductor hallucis
Muscular supports of the transverse archFL and TP
Direction of the 1st ray axisMedial, proximal, dorsal to lateral, distal, plantar
As the first ray dorsiflexes, it _____Inverts
As the first ray plantarflexes, it _____Everts
Does the first ray pronate/supinate?No
Motion of rays 2, 3, 4Sagittal plane motion about a transverse axis of motion
Direction of the 5th ray axisLateral, plantar, proximal to medial, dorsal, distal
Motion of the 5th raySupination/pronation
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