In human anatomy, the acromion (from Greek: akros, "highest", ōmos, "shoulder", PL: acromia) is a bony process on the scapula (shoulder blade). (wikipedia.org)
It starts from the base of acromion which marks its projecting point emerging from the spine of scapula. (wikipedia.org)
and between the meta- and basi-acromia This feature was common in skeletons recovered from the Mary Rose shipwreck: it is thought that in those men, much archery practice from childhood on with the mediaeval war bow (which needs a pull three times as strong as the modern standard Olympic bow) pulled at the acromion so much that it prevented bony fusion of the acromion with the scapula. (wikipedia.org)
Turtles have an acromion that forms the anterior part of the triradiate pectoral girdle (together with the coracoid and scapula). (wikipedia.org)
and the acromion is a medioventral (directed inwards and down) process (also known as the prescapular process) located at the base of the scapula. (wikipedia.org)
This had led to some controversy regarding the evolutionary origin of turtles, because in both pareiasaurs and non-mammalian therapsids the acromion is located at the dorsal tip of the scapula. (wikipedia.org)
The scapular receiver was attached using a scapula tracker jig and Velcro strips on the scapular spine and acromion process. (cdc.gov)
Coracoid process2
Laterally is the glenoid fossa , anteriorly is the coracoid process and superiorly is the acromion that is continuous with the scapular spine and arcs anteriorly over the humeral head. (radiopaedia.org)
The coracoacromial arch is formed (anteriorly to posteriorly) by the coracoid process, coracoacromial ligament, and acromion. (radiopaedia.org)
Below the acromion1
The injection should be given 3-5cms below the acromion, in the middle of the triangle. (rch.org.au)
Clavicle and acromion1
The distal clavicle and acromion process can also be fractured. (medscape.com)
Acromioclavicular joint2
The acromioclavicular joint is located at the top of the shoulder where the acromion process and the clavicle meet to form a joint (see the image below). (medscape.com)
The acromioclavicular joint is made up of 2 bones (the clavicle and the acromion), 4 ligaments, and a meniscus inside the joint. (medscape.com)
Rotator11
There are three morphologically distinct types of acromia and a correlation between these morphologies and rotator cuff tear: The acromion has four ossification centers called (from tip to base) pre-acromion, meso-acromion, meta-acromion, and basi-acromion. (wikipedia.org)
However, characteristic changes of acromion morphology appear as major risk factor for rotator cuff tear. (orthopaper.com)
also documented that incident of rotator cuff tear highly increased with type III (hooked) acromion. (orthopaper.com)
Many studies have attempted to correlate acromion characteristic with rotator cuff tears. (orthopaper.com)
But result still we attempted to determine the rotator cuff tear in association with different shape of acromion through a systemic review of appropriate studies. (orthopaper.com)
The most common type II acromion appears large in number with or without rotator cuff disease. (orthopaper.com)
Those with type III acromion more than 70% found with degenerative changes or tear of rotator cuff. (orthopaper.com)
It increasingly evident that type III acromion plays greater role to rotator cuff tear than other type I and type II of Bilgiani acromion classification. (orthopaper.com)
There is a lubricating sac called a bursa between the rotator cuff and the bone on top of your shoulder (acromion). (aaos.org)
When you raise your arm to shoulder height, the space between the acromion and rotator cuff narrows. (aaos.org)
The torn rotator cuff can no longer hold the head of the humerus in the glenoid socket, and the humerus can move upward and rub against the acromion. (aaos.org)
Scapular neck2
The acromion process is the origin of the acromial head of the deltoid muscle, which courses distally and covers the scapular neck. (medizzy.com)
Fractures of the acromion process or, more commonly, osteotomy of the acromion needed to expose the scapular neck and shoulder joint, require surgical repair. (medizzy.com)
Bony2
The acromion process is a bony protuberance extending anteriorly from the superolateral aspect of the scapular spine. (anatomicaljustice.com)
A bony growth (spur) on the underside of the acromion often causes impingement syndrome. (medlineplus.gov)
Medial border3
The acromion also functions as a site of muscle attachment, with the trapezius inserting along its medial border, and the deltoid originating from its lateral border. (anatomicaljustice.com)
The mean optimized weighting set contained no neglectable weight for all markers from the acromion to the medial border of the scapular spine but showed no significant difference (p = 0.547) compared to homogeneous weights. (bvsalud.org)
To conclude, homogenous weights applied on redundant markers located from acromion to scapular medial border spine are recommended when estimating scapular kinematics in upper limb MKO. (bvsalud.org)
Fractures3
Fractures of the acromion are generally caused by a significant blunt force to the shoulder that is directed anteriorly. (medscape.com)
With acromion fractures, there is tenderness directly over the acromion process. (medscape.com)
Nondisplaced fractures of the acromion usually can be treated with sling immobilization, ice, and analgesics. (medscape.com)
Humeral head1
A curved, type II acromion is the most prevalent morphology, with a concave undersurface that lies parallel to the curve of the humeral head. (anatomicaljustice.com)
Trapezius1
The connection points of the trapezius muscle are the clavicle, acromion and the shoulder blade. (shapefit.com)
Posterior1
The two prongs hook the posterior aspect of the acromion for retraction while the file is used to smooth rough edges of the acromion post-resection. (innomed.net)
Bursa2
The acromion can rub against (or impinge on) the tendon and the bursa, causing irritation and pain. (aaos.org)
Your bursa is the fluid-filled sac between your tendon and the acromion. (wren-clothing.com)
Process3
The acromion forms the summit of the shoulder, and is a large, somewhat triangular or oblong process, flattened from behind forward, projecting at first lateralward, and then curving forward and upward, so as to overhang the glenoid fossa. (wikipedia.org)
Radiograph of the shoulder showing an os acromiale The acromion process of bats (Mammalia: Chiroptera) is particularly elongated compared to that of humans. (wikipedia.org)
The other options mentioned, such as the acromion process and epicondyles, are not relevant landmarks for this particular projection. (proprofs.com)
Bones1
Previously, the shape of one of the shoulder bones (acromion) was thought to predict who may require a surgical decompression of the shoulder, but new research is challenging the importance of this space. (mendcolorado.com)
Classification1
According to an ancient classification of acromion type I (flat), type II (curved), or type III (hooked) introduced by Bigliani et al . (orthopaper.com)
Anterior1
Hooked, type III acromions curve inferiorly at the anterior aspect of the acromion, and are associated with an increased incidence of shoulder impingement. (anatomicaljustice.com)
Shape3
Does The Shape Of My Shoulder's Acromion Cause Pain? (mendcolorado.com)
Continue study over acromion shape a rare new type IV (convex) acromion also discovered. (orthopaper.com)
On the base of previous published article, the different types of acromion shape distribution is not equally seen in population. (orthopaper.com)
Junction1
joint at the top of the shoulder , the junction between the acromion and the clavicle . (wordnik.com)
Acromioplasty1
A flat, type I acromion is the least common of the three shapes, however it is commonly achieved surgically via acromioplasty to relieve shoulder impingement. (anatomicaljustice.com)
Abnormal1
This is evidenced by abnormal positioning of the clavicle relative to the acromion, usually in the superior direction. (medscape.com)
Accessory1
However, in between 1% and 15% of cases, this osseous union fails and the acromion remains separate as an accessory bone. (wikipedia.org)
View1
A special X-ray view, called an outlet view, sometimes will show a small bone spur on the front edge of the acromion. (aaos.org)
Type1
There are three distinct morphological shapes (Bigliani classifications) for the undersurface of the acromion: type I- flat, type II- curved, and type III- hooked. (anatomicaljustice.com)
Length2
Notwithstanding these changes, the acromion of turtles retains its original function, to support the shoulder girdle and increase stride length. (wikipedia.org)
Height and arm length (distance between acromion and olecranon) [8] of the subjects were measured in centimeters. (bioline.org.br)
Upper4
Acromion visible at upper left, in blue. (wikipedia.org)
nov. is described from well-preserved remains from the new Upper Cretaceous locality of Velaux-La Bastide Neuve (Aix-en-Provence Basin, France). (researchgate.net)
from the new Upper Cretaceous locality of V elaux-La Bastide Neuve (Aix-en-Provence Basin, France). (researchgate.net)
Antero-inferior to the acromion, on the upper portion of muscle deltoideus. (acufinder.com)
Flat1
In modern turtles, the acromion projects ventrally and articulates with the plastron (the flat lower part of the shell), but it evolved independently in pareiasaurs and turtles long before the plastron. (wikipedia.org)
In these primitive ancestors, the acromion projected forward to form a strong and flexible articulation between the shoulder girdle and the clavicle. (wikipedia.org)
Point1
The active electrode was placed at the mid-point of biceps muscle and the reference electrode at the acromion. (bioline.org.br)