Anatomical variations of the foramen magnum, occipital condyle and jugular tubercle

Avcı, Emel; Dağtekin, Ahmet; Öztürk, Ahmet Hakan; Kara, Engin; Öztürk, Nail Can; Uluç, Kutluay; Aktüre, Erinç; Başkaya, Mustafa K.

doi:10.5137/1019-5149.jtn.3838-10.1

Cited by 39 publications

(46 citation statements)

References 22 publications

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“…A larger distance provides a free corridor for posterolateral approaches [3] and a longer corridor provides a wider space for a far lateral transcondylar approach [31]. In our study, the distance between OC posterior tip and opisthion was 27,52±2,59mm, the distance between OC anterior tip and opisthion 39,43±3,34 mm, and the distance between OC anterior tip and basion 12,09±1,76 mm.…”

Section: Far Lateral Approachmentioning

confidence: 72%

“…Also, a long OC may require a more extensive resection for optimum visualization. Similar surgical considerations may be correct for the OC width [31]. Surgery in a wider condyle may be more demanding [12].…”

Section: Far Lateral Approachmentioning

confidence: 99%

“…Extensive dissection of paravertebral muscles and vessels such as the vertebral artery and removal of bony structures such as the OC and jugular tubercle is required. These maneuvers may result in injury to vascular structures (vertebral artery, jugular vein and bulb) and lower cranial nerves, and may also lead to craniocervical instability due to removal of the OC [31].…”

Section: Far Lateral Approachmentioning

confidence: 99%

“…Far lateral trans atlas approach is used for CVJ anomalies and rheumatoid arthritis [30]. Far lateral approaches may be far lateral transcondylar, transcondylar, retrocondylar, supracondylar, transtubercular and condylar fossa approaches [3,31]. Far lateral approach provides good exposure and a lateral viewing trajectory for accessing intradural and extradural lesions located at the ventral FM, ventral and ventrolateral brainstem and CVJ without brain retraction [3,32].…”

Section: Far Lateral Approachmentioning

confidence: 99%

See 3 more Smart Citations

Morphological Analysis of Occipital Condyles and Foramen Magnum as a Guide for Lateral Surgical Approaches

Ilhan

Kayhan

Erturk

et al. 2017

MOJAP

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Section: Far Lateral Approachmentioning

confidence: 72%

Section: Far Lateral Approachmentioning

confidence: 99%

Section: Far Lateral Approachmentioning

confidence: 99%

Section: Far Lateral Approachmentioning

confidence: 99%

See 2 more Smart Citations

Morphological Analysis of Occipital Condyles and Foramen Magnum as a Guide for Lateral Surgical Approaches

Ilhan

Kayhan

Erturk

et al. 2017

MOJAP

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“…However, our data was somehow nearer to Turkey's cases. Where, it was been reported that length of OC (Occipital condyle) 23.7±2.6, width of OC 9±14.5, Occipital condyle anterior border-Basion 9.9±1.9 and Occipital condyle posterior border--Opisthion 26.6±1.8, respectively (Avci et al, 2011). Muthukumar et al, showed that the distance of the posterior border of the OC from opisthion is important because a longer corridor provides a wider space for a far lateral transcondylar approach.…”

Section: Discussionmentioning

confidence: 99%

Characterization of Occipital Condyle and Comparison of its Dimensions with Head and Foramen Magnum Circumferences in Dry Skulls of Iran

et al. 2014

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SUMMARY:The occipital condyle (OC) is an important area in craniovertebral surgery, but its anatomical features and the procedures concerning the OC have not been studied in detail yet. The aim of this study was to revisit the anatomy of the occipital condyle region and assess variations of the surrounding structures. Observations, on fifty dry skulls (dried specimens, 100 sides) and determined of condyle measurements. The mean length, width and height of occipital condyle were found to be 19.43±3.27 (right), 19.28±3.57 (left), 9.21±1.97 (right) 9.40±1.87 (left), 7.21±1.9 (right) and 7.33±2.74 mm (left), respectively. There were significant differences between right and left occipital condyles. The mean anterior intercondylar distance and posterior intercondylar distance were measured as 15.39±7 and 35.60±8.4 mm, respectively. Variations of occipital condyle shapes were kidney like (34.4%), S-like (25.6), triangular (13.3%) oval (10.0%), ring like (7.8%), eight like (6.7%) and deformed (2.2%) respectively. The condylar fossa presented in 60% of dry skull, 24% in right side and 36% in left side and also the condylar foramen was found in 60% of the specimens studied. There was no relation between the circumference of the head and the length of OC but we found relation between the circumference of the head and the width of OC (0.527) and foramen magnum circumference (0.433). The OC and FM are the main bony structures obstructing the surround of the brainstem. The differences in the size and the shape of occipital condyle have some differences and also similarities among racial subgroups. The posterior condylar vein may act asymmetrically. The correlation of the size of foramen magnum with the width of occipital condyles shows the importance of occipital condyle for lateral movements besides antero-posterior movements.

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Retrospective evaluation of the morpometric and morphological anatomy of the occipital condyle, hypoglossal canal and foramen magnum in Turkish populaton with CBCT

2023

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The aim of this study is to examine morphometrically the occipital condyle and surrounding structures, which is an important region in terms of surgery and forensic medicine, and to evaluate the change of mean values according to gender and age; it is also the evaluation of the correlation of the measurements made. Methods 1 80 (90 men, 90 women ) CBCT images selected from the archive of Ankara University Faculty of

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Anatomical variations of the foramen magnum, occipital condyle and jugular tubercle

Abstract: The OC and JT are the main bony prominences obstructing the anterolateral surface of the brainstem. Neurosurgeons should be familiar with variations of the structures surrounding the FM in order to perform the safest and widest exposure possible.

Cited by 39 publications

References 22 publications

Morphological Analysis of Occipital Condyles and Foramen Magnum as a Guide for Lateral Surgical Approaches

Morphological Analysis of Occipital Condyles and Foramen Magnum as a Guide for Lateral Surgical Approaches

Characterization of Occipital Condyle and Comparison of its Dimensions with Head and Foramen Magnum Circumferences in Dry Skulls of Iran

Retrospective evaluation of the morpometric and morphological anatomy of the occipital condyle, hypoglossal canal and foramen magnum in Turkish populaton with CBCT

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