WordNet

a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)
the length of a line segment between the center and circumference of a circle or sphere (同)r
a circular region whose area is indicated by the length of its radius; "they located it within a radius of 2 miles"
the outer and slightly shorter of the two bones of the human forearm
any connection or unifying bond
a sheet or band of tough fibrous tissue connecting bones or cartilages or supporting muscles or organs

PrepTutorEJDIC

《所有・所属》…『の』,…のものである,…に属する・《材料・要素》…『でできた』,から成る・《部分》…『の』[『中の』] ・《数量・単位・種類を表す名詞に付いて》…の・《原因・動機》…『で』,のために(because of) ・《主格関係》…『の』,による,によって・《目的格関係》…『を』,の・《同格関係》…『という』・《関係・関連》…『についての』[『の』],の点で・《抽象名詞などと共に》…の[性質をもつ] ・《『It is』+『形』+『of』+『名』+『to』 doの形で,ofの後の名詞を意味上の主語として》・《分離》…『から』・《起原・出所》…『から』[『の』](out of) ・《『名』+『of』+『a』(『an』)+『名』の形で》…のような・《『名』+『of』+『mine』(『yours, his』など独立所有格)の形で》…の…・《時》(1)《副詞句を作って》…に《形容詞句を作って》…の・《時刻》《米》…前(to,《米》before)
半径 / (行動・活動・能力なのどの)及ぶ範囲《+『of』+『名』》 / 橈骨(とうこつ)(上腕の骨の一つ)
靱帯(じんたい)(骨と骨を結びつてけ関節の動きを調節する)
OLD French古[代]フランス語

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2021/11/16 12:30:47」(JST)

wiki en

The annular ligament (orbicular ligament) is a strong band of fibers that encircles the head of the radius, and retains it in contact with the radial notch of the ulna.^[1]

Per Terminologia Anatomica, the spelling is "anular",^[2] but the spelling "annular" is frequently encountered.

Anatomy

The annular ligament is attached by both its ends to the anterior and posterior margins of the radial notch of the ulna, together with which it forms the articular surface that surrounds the head and neck of the radius. The ligament is strong and well defined, yet its flexibility permits the slightly oval head of the radius to rotate freely during pronation and supination.^[3]^[4]

The head of the radius is wider than the bone's neck, and, because the annular ligament embraces both, the radial head is "trapped" inside the ligament which thus acts to prevent distal displacement of the radius.^[3] It helps to stabilise the proximal radial head,^[5] and the radioulnar joint.^[6]

Superiorly, the ligament is supported by attachments to the radial collateral ligament and the fibrous capsule of the elbow joint. Inferiorly, a few fibres attached to the neck of the radius support a fold of the synovial membrane without interfering with the movements at the joint.^[3]

The fibrocartilage on the upper part of the ligament is continuous with the hyaline cartilage of the radial notch. At the posterior attachment the ligament widens to reach above and below the radial notch.^[3]

A thickened band which extends from the inferior border of the annular ligament below the radial notch to the neck of the radius is known as the quadrate ligament.^[1]

Clinical significance

Children who have not finished fusing their proximal radial epiphyseal plate may suffer dislocations of this joint, called pulled elbow or Nursemaid's elbow. This frequently happens when parents sharply jerk their children by their arms, e.g. the act of grabbing a child away from traffic.

Additional images

The supinator muscle
T1 weighted MRI showing the anular ligament
Elbow joint. Deep dissection. Anterior view.
Elbow joint. Deep dissection. Anterior view.

References

This article incorporates text in the public domain from page 324 of the 20th edition of Gray's Anatomy (1918)

^ ^a ^b Gray's Anatomy (1918), see infobox
^ Federative Committee on Anatomical Terminology (1998). Terminologia anatomica: international anatomical terminology. Thieme. ISBN 978-3-13-114361-7. Retrieved 9 February 2011.
^ ^a ^b ^c ^d Palastanga, Nigel; Soames, Roger (2012). Anatomy and Human Movement: Structure and Function (6th ed.). Elsevier. p. 141. ISBN 9780702040535.
^ Galik, Karol; Baratz, Mark E.; Butler, Adrian L.; Dougherty, Joseph; Cohen, Mark S.; Miller, Mark Carl (October 2007). "The Effect of the Annular Ligament on Kinematics of the Radial Head". The Journal of Hand Surgery. 32 (8): 1218–1224. doi:10.1016/j.jhsa.2007.06.008. ISSN 0363-5023. PMID 17923306.
^ Anderson, Ashley; Werner, Frederick W.; Tucci, Emily R.; Harley, Brian J. (December 2015). "Role of the interosseous membrane and annular ligament in stabilizing the proximal radial head". Journal of Shoulder and Elbow Surgery. 24 (12): 1926–1933. doi:10.1016/j.jse.2015.05.030. ISSN 1058-2746. PMID 26190665.
^ Hayami, Naoki; Omokawa, Shohei; Kira, Tsutomu; Hojo, Junya; Mahakkanukrauh, Pasuk; Tanaka, Yasuhito (August 2020). "Biomechanical analysis of simultaneous distal and proximal radio-ulnar joint instability". Clinical Biomechanics. 78: 105074. doi:10.1016/j.clinbiomech.2020.105074. ISSN 0268-0033. PMID 32562881.

External links

Anatomy figure: 10:5a-02 at Human Anatomy Online, SUNY Downstate Medical Center

UpToDate Contents

全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.

1. 橈骨頭の亜脱臼（肘内障）：評価および管理radial head subluxation pulled elbow evaluation and management [show details]
… With sudden pulling on the distal radius, a portion of the annular ligament slips over the head of the radius and slides into the radiohumeral joint,… will review radial head subluxation (RHS). Elbow fractures and sports-related elbow injuries are discussed separately: RHS (also called "nursemaid elbow," "pulled elbow,"…
2. 活動的な小児や骨格発達の未成熟な青年の肘関節障害：アプローチelbow injuries in active children or skeletally immature adolescents approach [show details]
… to the more distal radius. The pronator teres originates from the medial epicondyle and the proximal ulna and inserts on the lateral midshaft of the radius.… forcefully pulling on the wrist of a young child) – Radial annular ligament (nursemaid elbow) Joint mobility and stability – In addition to…
3. 腕を動かさない小児の評価evaluation of the immobile arm in children [show details]
… This topic will discuss the approach to the child with an immobile arm. Radial head subluxation (nursemaid elbow) is discussed separately. An immobile arm is a relatively common complaint in pediatrics …
4. What's new in emergency medicinewhats new in emergency medicine [show details]
…Evidence is limited regarding the frequency of fractures in children with suspected radial head subluxation (RHS; "nursemaid elbow"). In a recent, observational study of over 77,000 United States children receiving …
5. What's new in pediatricswhats new in pediatrics [show details]
…Evidence is limited regarding the frequency of fractures in children with suspected radial head subluxation (RHS; "nursemaid elbow"). In a recent, observational study of over 77,000 United States children receiving …

English Journal

[Anatomic characteristics pf the elbow joint of the cheetah (Acinonyx jubatus)].

Künzel W1, Probst A.
Anatomia, histologia, embryologia.Anat Histol Embryol.1998 Jun;27(3):167-72.
Anatomical structures of elbow joints of six cheetahs were examined by dissection, corrosion casts and radiography. As a result, it was observed that the distal end of humerus is divided into the trochlea humeri for articulation with the ulna and the capitulum humeri for articulation with the radius
PMID 9652144

「橈骨輪状靭帯」

Annular ligament
Annular ligament
	Capsule of elbow-joint (distended). Anterior aspect.
	Annular ligament of radius, from above. The head of the radius has been sawn off and the bone dislodged from the ligament.
Details
Identifiers
Latin	ligamentum anulare radii
Greek	δακτυλιοειδής σύνδεσμος
TA98	A03.5.09.007
TA2	1778
FMA	38872
	Anatomical terminology [edit on Wikidata]

　　[★]

英: anular ligament of radius (M,N,K), annular ligament (KH), anular ligament (M,KL)
関: 橈骨

図：M.448
橈骨頭をぐるっと取り巻くように輪走する靭帯

機能

橈骨頭を取り巻いて、尺骨の橈骨切痕に保持
橈尺関節の一部であり、前腕の回内と回外を可能にする

Henry Gray (1825-1861). Anatomy of the Human Body. 1918.
Henry Gray (1825-1861). Anatomy of the Human Body. 1918.

[Gray's-1] Gray's Anatomy (1918), see infobox

[Terminology1998-2] Federative Committee on Anatomical Terminology (1998). Terminologia anatomica: international anatomical terminology. Thieme. ISBN 978-3-13-114361-7. Retrieved 9 February 2011.

[Palastanga-Soames-2012-141-3] Palastanga, Nigel; Soames, Roger (2012). Anatomy and Human Movement: Structure and Function (6th ed.). Elsevier. p. 141. ISBN 9780702040535.

[4] Galik, Karol; Baratz, Mark E.; Butler, Adrian L.; Dougherty, Joseph; Cohen, Mark S.; Miller, Mark Carl (October 2007). "The Effect of the Annular Ligament on Kinematics of the Radial Head". The Journal of Hand Surgery. 32 (8): 1218–1224. doi:10.1016/j.jhsa.2007.06.008. ISSN 0363-5023. PMID 17923306.

[5] Anderson, Ashley; Werner, Frederick W.; Tucci, Emily R.; Harley, Brian J. (December 2015). "Role of the interosseous membrane and annular ligament in stabilizing the proximal radial head". Journal of Shoulder and Elbow Surgery. 24 (12): 1926–1933. doi:10.1016/j.jse.2015.05.030. ISSN 1058-2746. PMID 26190665.

[6] Hayami, Naoki; Omokawa, Shohei; Kira, Tsutomu; Hojo, Junya; Mahakkanukrauh, Pasuk; Tanaka, Yasuhito (August 2020). "Biomechanical analysis of simultaneous distal and proximal radio-ulnar joint instability". Clinical Biomechanics. 78: 105074. doi:10.1016/j.clinbiomech.2020.105074. ISSN 0268-0033. PMID 32562881.

匿名

検索

案内

案内

anular ligament of radius