Deltoid Tuberosity
Deltoid Tuberosity - Related Videos
10:10
Reverse Total Shoulder Arthroplasty
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Cited by 5 •
2011
Reverse total shoulder arthroplasty is indicated for the treatment of conditions that cannot be treated with conventional arthroplasty or other procedures. These primarily include degenerative and incapacitating conditions with irreparable rotator cuff and loss of the normal biomechanical coupling of the shoulder.
07:10
Modified Long Head of Biceps Tendon Rerouting and Fixation as Partial Capsular Reconstruction for Massive Irreparable Rotator Cuff Tears
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2026
We propose a technical modification for capsular reconstruction that utilizes arthroscopic rerouting and fixation of the long head of the biceps tendon to enhance the repair of massive irreparable rotator cuff tears.
04:01
The Modified Single-working Portal Technique Using Lasso-loop Stitch with Needle for Arthroscopic Subscapularis Repair
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2025
We propose a modified arthroscopic technique of suturing the subscapular using a needle-through-line Lasso-loop through a unilateral anterior portal.
06:41
A Novel Arthroscopic Medial Knot-Tying Suture-Bridge Repair with Rip-Stop Technique for Rotator Cuff Tears
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2026
This protocol presents an optimized rotator cuff repair technique that combines the medial knot-tying suture-bridge repair with a rip-stop configuration, designed to enhance cuff healing and minimize the risk of retear.
08:48
Combining Multiple Data Acquisition Systems to Study Corticospinal Output and Multi-segment Biomechanics
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Cited by 1 •
2016
The use of transcranial magnetic stimulation (TMS) to study human motor control requires the integration of data acquisition systems to control TMS delivery and simultaneously record human behavior. The present manuscript provides a detailed methodology for integrating data acquisition systems for the purpose of investigating human movement via TMS.
FAQs
It provides the attachment site through which deltoid contraction transmits force to the humerus. This force supports arm abduction, while the movement contribution changes with the fibers recruited. The attachment therefore links muscle activity at the shoulder to movement of the upper limb, making the tuberosity relevant when relating skeletal landmarks to functional anatomy.
The V-shaped, roughened surface identifies a specialized region of the humeral shaft associated with deltoid attachment. Its surface character and position distinguish it from surrounding bone and make it useful for connecting the visible organization of the humerus with the location of a major muscle attachment. This relationship supports anatomical orientation during study of the upper limb.
The direction of movement depends on which deltoid fibers are recruited. Contraction can assist arm abduction, while particular fiber recruitment also contributes to shoulder flexion or extension. The tuberosity itself does not independently produce these actions; it serves as the bony point where muscular force is transferred to the humerus, linking attachment anatomy with coordinated movement.
This landmark demonstrates how an attachment site converts muscle contraction into skeletal movement. The deltoid generates force, the attachment transmits that force to the humerus, and the resulting bone movement contributes to positioning the arm. Studying this connection helps biology students interpret musculoskeletal anatomy as a functional system rather than as isolated muscles and bones.
Its recognizable position on the lateral midshaft of the humerus gives clinicians an anatomical reference when assessing the shoulder region and upper arm. Comparing the landmark with expected anatomy can support physical examination and orientation of nearby structures. Its value comes from connecting a palpable or visual skeletal reference with the deltoid attachment and humeral shaft.
On imaging, the tuberosity serves as a humeral landmark that helps identify the lateral midshaft and the region associated with deltoid insertion. Recognizing this relationship can aid anatomical orientation when evaluating the shoulder or humeral shaft. It also provides context for interpreting findings involving the bone or nearby attachment region without treating the landmark as an isolated feature.
The deltoid tuberosity helps clinicians relate an injury to the anatomy of the humerus and its deltoid attachment. Damage involving the shoulder or humeral shaft can be considered in relation to this landmark, muscle force transmission, and upper-limb movement. Its location therefore supports structured assessment of how an injury may relate to local musculoskeletal anatomy.