Ossification of the Posterior Atlantoaxial Membrane and the Transverse Atlantal Ligament

Shoda, Naoki; Anamizu, Yorito; Yonezawa, Naoko; Ishibashi, Hiroyuki; Yamamoto, Seiji

doi:10.1097/01.brs.0000160996.82470.c0

Cited by 13 publications

(10 citation statements)

References 9 publications

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“…Most such cases are due to atlanto axial dislocation, basilar invagination, os odontoideum, hypertrophied odontoid, chiari malformation, primary atlantal hypoplasia etc. [12345678]…”

Section: Discussionmentioning

confidence: 99%

“…Some of these include various grades of C1 arch hypoplasia, assimilation of atlas, anomalies involving the odontoid process, congenital atlanto axial dislocations, basilar invagination etc. [123456] In addition to these bony anomalies, various vascular and soft-tissue anomalies are also very frequent in this crucial area harboring the transition of brain into the spinal cord. However, hypertrophied unilateral lateral mass of atlas in association with chiari-1 malformation leading to myelopathy is extremely uncommon.…”

Section: Introductionmentioning

confidence: 99%

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Unilateral lateral mass hypertrophy: An extremely rare congenital anomaly of Atlas

Das

Mehrotra

Sahu

et al. 2013

J Craniovert Jun Spine

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A wide variety of congenital anomalies are observed around the craniovertebral junctional area. However, hypertrophied unilateral lateral mass of atlas in association with chiari-1 malformation leading to myelopathy is extremely uncommon. Herein we report a case of 28-year-old female who presented to us with a high cervical compressive myelopathy. Imaging revealed bony hypertrophy involving right sided C1 lateral mass along with chiari malformation-type 1. She underwent transoral as well as posterior decompression followed by occipito-cervical fusion. The authors discuss their case in light of other such reported cases and present a review of the literature.

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“…Most such cases are due to atlanto axial dislocation, basilar invagination, os odontoideum, hypertrophied odontoid, chiari malformation, primary atlantal hypoplasia etc. [12345678]…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Unilateral lateral mass hypertrophy: An extremely rare congenital anomaly of Atlas

Das

Mehrotra

Sahu

et al. 2013

J Craniovert Jun Spine

View full text Add to dashboard Cite

show abstract

“…Only 5 such cases have been reported. [5][6][7][8][9] Most such patients were in their fifth or sixth decade of life and presented with progressive myelopathy (Table). None but our patient showed atlantoaxial instability.…”

Section: Discussionmentioning

confidence: 99%

Ossification of the Posterior Atlantoaxial Membrane Associated with an Os Odontoideum: A Case Report

Ohya

Chikuda

Sugita

et al. 2011

J Orthop Surg (Hong Kong)

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We report a case of ossification of the posterior atlantoaxial membrane associated with an os odontoideum in a 46-year-old woman. She developed myelopathy following a minor motor vehicle accident. The patient underwent posterior atlantoaxial arthrodesis and resection of the ossified lesion and recovered uneventfully. Long-standing atlantoaxial instability might have played a role in ectopic ossification of the posterior atlantoaxial membrane.

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“…Understanding the causes and classification of various TAL injuries is critical as this ligament, when torn, is incapable of self-repair [ 11 ]. Apart from traumatic injury, ossification of the TAL has been reported by Shoda, et al but is considered an uncommon pathological condition [ 16 ].…”

Section: Reviewmentioning

confidence: 99%

“False” Ligaments: A Review of Anatomy, Potential Function, and Pathology

Vetter

Oskouian

Tubbs

2017

Cureus

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This paper, although not an exhaustive review of "false" ligaments in the body, describes eight such ligaments. False ligaments are defined as ligamentous structures connecting separate parts of the same bone and are thus immobile. The ligaments reviewed include the suprascapular ligament, the transforaminal lumbar ligaments, the mamillo-accessory ligament, the transverse atlantal ligament, the transverse occipital ligament, the transverse humeral ligament, the coracoacromial ligament, and the transverse part of the ulnar collateral ligament. In this review, the anatomy and histological characteristics of each ligament are reviewed. Furthermore, possible functions and associated pathologies are described.

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Ossification of the Posterior Atlantoaxial Membrane and the Transverse Atlantal Ligament

Abstract: Ossification of various parts of the spinal ligament have been reported previously. Among them, ossification of both the PAAM and TAL has never been reported previously and is thus extremely rare. Surgical intervention improved the neurological impairment.

Cited by 13 publications

References 9 publications

Unilateral lateral mass hypertrophy: An extremely rare congenital anomaly of Atlas

Unilateral lateral mass hypertrophy: An extremely rare congenital anomaly of Atlas

Ossification of the Posterior Atlantoaxial Membrane Associated with an Os Odontoideum: A Case Report

“False” Ligaments: A Review of Anatomy, Potential Function, and Pathology

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