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The triquetral bone may be distinguished by its pyramidal shape, and by an oval isolated facet for articulation with the pisiform bone. It is situated at the upper and ulnar side of the carpus. To facilitate its palpation in an exam, the hand must be radially deviated so that the triquetrium moves
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The triquetral bone has nutrient foramina for entering the nutrient vessels into the bone which comes from branches of the radial, ulnar, and interosseous arteries.
776:
360:, directed lateralward, is concave, sinuously curved, and smooth for articulation with the hamate. The dorsal surface is rough for the attachment of ligaments.
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presents a medial, rough, non-articular portion, and a lateral convex articular portion which articulates with the triangular articular disk of the wrist.
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691:
Balachandran, Ajay; Kartha, Moumitha; Krishna, Anooj; Thomas, Jerry; K, Prathilash; TN, Prem; GK, Libu; B, Krishnan; John, Liza (2014).
367:
presents, on its medial part, an oval facet, for articulation with the pisiform; its lateral part is rough for ligamentous attachment.
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out from under the ulnar styloid process. The triquetrum may be difficult to find, since it also lies under the pisiform.
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381:, the summit of the pyramid, is pointed and roughened, for the attachment of the ulnar collateral ligament of the wrist.
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Drake, Richard L.; Vogl, Wayne; Tibbitts, Adam W.M. Mitchell; illustrations by
Richard; Richardson, Paul (2005).
287:
1306:
1000:
169:
121:
600:
Manaster, B. J., Julia Crim "Imaging
Anatomy: Musculoskeletal E-Book" Elsevier Health Sciences, 2016, p. 326.
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aspect of the bone that is often hidden on anterior radiographs, but can be seen as a tiny bone fragment on
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374:, the base of the pyramid, is marked by a flat, quadrilateral facet, for articulation with the lunate.
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989:
694:"A Study of Ossification of Capitate, Hamate, Triquetral & Lunate in Forensic Age Estimation"
664:
balci, aybegum (1 November 2022). "The morphologic and morphometric features of the triquetrum".
318:. It is a three-faced bone found within the proximal row of carpal bones. Situated beneath the
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disc and ligament, which forms part of the ulnocarpal joint capsule. It connects with the
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The triquetral bone ossifies between 9 months and 50 months (4 years and 2 months).
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267:
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322:, it is one of the carpal bones that form the carpal arch, within which lies the
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Triquetral fractures can occur due to forceful flexion of the wrist, causing an
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The carpal bones function as a unit to provide a bony superstructure for the
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which means "three-cornered." Therefore, it is sometimes also called the
393:, since (at least in the most primitive fossils) it articulates with the
81:
286:. Instead, it is connected to and articulates with the ulna through the
1061:
931:
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175:
86:
44:
Left hand anterior view (palmar view). Triquetral bone shown in red.
754:
546:
Bones of the left hand. Dorsal surface. Triquetral shown in yellow.
534:
Bones of the left hand. Palmar surface. Triquetral shown in yellow.
389:
In reptiles and amphibians, the bone is instead referred to as the
51:
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109:
1156:
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785:
558:
Cross section of wrist (thumb on left). Triquetral shown in red.
406:
394:
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283:
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789:
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223:
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Triquetral fracture as seen on lateral view of a radiograph.
282:
side of the hand, but does not directly articulate with the
474:
Triquetral bone of the left hand (shown in red). Animation.
214:
202:
302:
bones. It is the 2nd most commonly fractured carpal bone.
510:
Right hand posterior view (dorsal view). Thumb on bottom.
486:
Triquetral bone of the left hand. Close up. Animation.
522:
Right hand anterior view (palmar view). Thumb on top.
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Indian
Journal of Forensic Medicine & Toxicology
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570:Triquetral fracture indicated by the white arrow.
643:. Philadelphia: Elsevier/Churchill Livingstone.
266:on the medial side of the proximal row of the
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95:which separates it from the lower end of the
8:
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437:The etymology derives from the Latin
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310:The triquetral is one of the eight
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491:
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666:Hand Surgery and Rehabilitation
711:10.5958/0973-9130.2014.00720.8
1:
678:10.1016/j.hansur.2022.11.002
115:os triquetrum, os pyramidale
641:Gray's anatomy for students
453:may also refer to a nearby
1338:
740:
612:"Ulnotriquetral ligament"
288:Triangular fibrocartilage
168:
49:
37:
262:bone) is located in the
170:Anatomical terms of bone
56:The left triquetal bone
743:anatomical terminology
1025:supracondylar ridges
278:bones. It is on the
990:deltoid tuberosity
741:This article uses
1317:Bones of the hand
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1293:
1290:
1289:
1151:
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1099:Lister's tubercle
825:subclavian groove
820:costal tuberosity
650:978-0-8089-2306-0
461:Additional images
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183:
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70:Articulates with
27:Bone in the wrist
16:(Redirected from
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1226:Metacarpal bones
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1127:coronoid process
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974:bicipital groove
904:coracoid process
894:spine of scapula
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498:Triquetral bone.
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358:inferior surface
351:superior surface
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1135:trochlear notch
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1095:styloid process
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810:conoid tubercle
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851:supraspinatous
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455:accessory bone
451:os triangulare
447:os triangulare
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379:medial surface
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93:articular disk
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985:radial sulcus
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875:glenoid fossa
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865:suprascapular
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750:Pisiform bone
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621:September 28,
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365:volar surface
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324:carpal tunnel
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67:Articulations
65:
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41:
36:
31:
19:
1322:Carpal bones
1277:intermediate
1183:
1166:Carpal bones
1140:near wrist (
1131:radial notch
1117:near elbow (
1089:near wrist (
1078:near elbow (
1038:
1024:
1010:
994:
978:
959:
945:
939:
908:
888:supraglenoid
884:infraglenoid
879:
860:
842:
722:. Retrieved
702:
698:
686:
672:(1): 40–44.
669:
665:
659:
640:
619:. Retrieved
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337:Ossification
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312:carpal bones
309:
270:between the
259:
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251:
247:
187:
185:
139:A02.4.08.006
114:
71:
1091:ulnar notch
1011:epicondyles
847:subscapular
449:. However,
256:three-faced
104:Identifiers
91:triangular
1301:Categories
1184:triquetral
1119:tuberosity
1084:tuberosity
950:anatomical
588:References
439:triquetrus
385:In animals
248:triquetrum
18:Triquetral
1264:Phalanges
1199:trapezoid
1194:trapezium
1123:olecranon
1051:olecranon
1001:capitulum
960:tubercles
880:tubercles
724:18 August
719:0973-9130
433:Etymology
306:Structure
260:cuneiform
252:pyramidal
79:laterally
1272:proximal
1204:capitate
1189:pisiform
1174:scaphoid
1047:coronoid
1006:trochlea
954:surgical
917:inferior
913:superior
899:acromion
802:clavicle
737:See also
419:avulsion
413:Fracture
401:Function
345:Surfaces
320:pisiform
292:pisiform
276:pisiform
89:distally
84:in front
82:pisiform
1214:hamulus
1062:Forearm
1029:lateral
1015:lateral
964:greater
932:Humerus
921:lateral
861:notches
835:Scapula
788:of the
429:views.
427:lateral
421:of the
314:of the
127:D051221
62:Details
1282:distal
1209:hamate
1179:lunate
1071:Radius
1043:radial
1039:fossae
1033:medial
1019:medial
968:lesser
909:angles
843:fossae
717:
647:
423:dorsal
391:ulnare
300:lunate
298:, and
296:hamate
272:lunate
268:carpus
87:hamate
77:lunate
74:bones:
1312:Wrist
946:necks
786:Bones
280:ulnar
264:wrist
174:[
163:23715
110:Latin
72:three
1157:Hand
1110:Ulna
1080:head
980:body
726:2014
715:ISSN
645:ISBN
623:2022
407:hand
395:ulna
377:The
370:The
363:The
356:The
349:The
316:hand
284:ulna
274:and
186:The
151:1253
134:TA98
122:MeSH
97:ulna
1254:5th
1249:4th
1244:3rd
1239:2nd
1234:1st
790:arm
707:doi
674:doi
445:or
409:.
326:.
158:FMA
146:TA2
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224:əl
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206:ˈ
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190:(
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