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Ossicle shit

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ajkim1's version from 2015-06-08 00:55

Section 1

Question Answer
Primary center of ossification of the calcaneus5-6 mo of fetal development
Secondary center of ossification of the calcaneus4-10 yo in the posterior aspect
Fusion of the calcaneus14-16 yo
Primary center of ossification of the talus6-7 mo of fetal development
Secondary center of ossification of the talusOccasional in the lateral tubercle at 8-9 yo
Fusion of the talusMay or may not fuse
Primary center of ossification of the cuboid9 mo of fetal age, shortly after birth
Primary center of ossification of the 3rd cuneiform6 mo
Primary center of ossification of the 2nd cuneiform1 yo
Primary center of ossification of the 1st cuneiform1-1.5 yo
Primary center of ossification of the navicular2.5-5 yo
Secondary center of ossification of the navicularOccasional in the tuberosity at 10 yo
Fusion of the navicularMay or may not fuse
Primary center of ossification of the 1st MT3 mo of fetal development in the shaft
Secondary center of ossification of the 1st MT3 yo in the base, occasional in the head at 7-10 yo
Fusion of the MTs18-20 yo
Primary center of ossification of the lesser MTs3 mo of fetal development in the shaft
Secondary center of ossification of the lesser MTs3 yo in the head, occasional in the tuberosity of the 5th at 7-10 yo
Primary center of ossification of the phalanges3-4 mo of fetal development in the shaft
Secondary center of ossification of the phalanges6 mo-2 yo in the base
Fusion of the phalanges18-20 yo
Primary center of ossification of the sesamoids7-8 yo
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Question Answer
2 types of accessory bonesOssicles and sesamoids
Anomalous development of anomalous ossification patternsOssicles
Found in tendons and joint capsules and usually present to reduce the friction of a tendon or alter the pull of a tendonSesamoids
Present earlier, usually larger, and more irregular in shapeAccessory ossicles
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Question Answer
Posterior to the lateral tubercle on the posterior surface of the bod of the talusOs trigonum/talus secondarius/talus accessorius
Fused lateral tubercle of the posterior surface of the body of the talusSteida's process/trigonal process
Fracture of the lateral tubercle of the posterior surface of the body of the talusShephard's fracture
Posterior to the tuberosity of the navicularOs tibial externum/accessory navicular/prehallux
Fused os tibiale externumGorilloid navicular
Between 1st and 2nd MT base on the dorsal aspect but also found between the 4th and 5th MT basesOs intermetatarseum
Dorsal aspect of the talonavicular jointOs supranaviculare/os talonavicular dorsal
Dorsal aspect of the calcaneocuboid joint next to the anterior processOs calcaneum secundum/os calcaneus secondarius
Proximal aspect of the dorsal surface of the neck of the talusOs supratalare/talus secondarius
Posterior to the tuberosity of the base of the 5th MTOs vesalianum
Medial/lateral aspect of the base of the distal phalanxAccessory ossicle of the hallux
Inferior to the anterior colliculus of the medial malleolusOs subtibiale
Inferior to the tip of the lateral malleolusOs subfibulare
Dorsal surface of the 1st intercuneiform jointOs inter cuneiform
Lateral surface of the calcaneus near the trochlear processCalcaneus accessories/os trochlea
Sinus tarsi regionOs sinus tarsi
Dorsomedial aspect of the 1st cuneonaviculkr jointOs paracuneiform
Superior surface of the calcaneus between the posterior surface and the posterior facetOs supracalcaneus
Posterior aspect of the sustentaculum tali of the calcaneusOs sustentaculi
Plantar aspect between the navicular and cuboid bonesOs cuboideum secondarium/secondary cuboid
Inferior to the tuberosity of the calcaneusOs subcalcis
Distal aspect of the plantar surface of the lateral cuneiformOs uncinatum
Fused os uncinatumProcessus uncinatus
Tendon of FL near the fibular notchOs perineum
Anteroinferior aspect of the medial surface of the 1st cuneiformOs sesamoidum TA
Proximal to the tuberosity of the navicularSesamoid in the tendon of TP/os tibiale externum
Tendo Achilles near the posterior surface of the calcaneusOs tendons calcanei
IPJ joint capsule of the hallux on the plantar aspectOs interphalangeus/IPJ sesamoid of the hallux
Capules and tendons of muscles at the MTPJ and IPJCapsular sesamoids of the lesser MPJs and IPJs
Tendons of TA or FL at the 1st tarsometatarsal jointOs cuneometatarsal perinea/tibiale
Plantar portion of the tendon of TP near the plantar aspect of the navicularOs sesamoideum TP
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