Deltoid tubercle of spine

Deltoid Tubercle of the Spine

The deltoid tubercle of the spine is a small bony prominence located on the lateral aspect of the third cervical vertebra (C3). It serves as an important anatomical landmark for various clinical and surgical procedures involving the cervical spine. In this article, we will explore the anatomy, function, and clinical significance of the deltoid tubercle.

Anatomy

The deltoid tubercle is a small bony projection found on the lateral mass of the C3 vertebra. It is situated at the junction of the transverse process and the superior articular process. The tubercle is named after its resemblance to the shape of a deltoid muscle, which is a triangular muscle found in the shoulder region.

The deltoid tubercle serves as an attachment site for the posterior fibers of the anterior scalene muscle. This muscle plays a crucial role in stabilizing the cervical spine and assisting in neck movements. The attachment of the anterior scalene muscle to the deltoid tubercle helps in maintaining the stability and proper alignment of the cervical vertebrae.

Function

The deltoid tubercle, along with the anterior scalene muscle, contributes to the stability and movement of the cervical spine. The attachment of the muscle fibers to the tubercle allows for controlled flexion, extension, and rotation of the neck. Additionally, the deltoid tubercle acts as a point of origin for the posterior fibers of the anterior scalene muscle, which further enhances the stability of the cervical spine.

Clinical Significance

The deltoid tubercle of the spine has clinical significance in various medical procedures and conditions involving the cervical spine. Some of the notable clinical aspects are:

Internal links - Cervical spine: The deltoid tubercle is an important landmark used in the identification and localization of structures during surgical procedures involving the cervical spine. - Anterior scalene muscle: The attachment of the posterior fibers of the anterior scalene muscle to the deltoid tubercle is crucial for maintaining the stability and proper alignment of the cervical vertebrae. - Cervical spine surgery: Surgeons often refer to the deltoid tubercle as a reference point during cervical spine surgeries, such as discectomy or fusion procedures.

Conclusion

The deltoid tubercle of the spine is a small bony prominence located on the lateral aspect of the C3 vertebra. It serves as an attachment site for the posterior fibers of the anterior scalene muscle, contributing to the stability and movement of the cervical spine. The deltoid tubercle has clinical significance in various medical procedures involving the cervical spine. Understanding its anatomy and function is essential for healthcare professionals involved in the management of cervical spine conditions.