Ultrasound of Coracoid Process

2022 ◽  
pp. 29-43
Author(s):  
A. Moraux
Keyword(s):  
Coracoid Process

scholarly journals Is it the coracobrachialis superior muscle, or is it an unidentified rare variant of coracobrachialis muscle?

2021 ◽  
Author(s):  
Łukasz Olewnik ◽  
Nicol Zielinska ◽  
Łukasz Gołek ◽  
Paloma Aragonés ◽  
Jose Ramon Sanudo
Keyword(s):  
Case Report ◽  
Rare Variant ◽  
Shoulder Joint ◽  
Biceps Brachii ◽  
Coracoid Process ◽  
Biceps Brachii Muscle ◽  
Shoulder Region

AbstractThe coracobrachialis muscle (CBM) originates from the apex of the coracoid process, in common with the short head of the biceps brachii muscle, and from the intermuscular septum. The CBM demonstrates variability in both the proximal and distal attachment, with some extremely rare varieties, such as the coracobrachialis superior, coracobrachialis longus and coracocapsularis muscle. This case report describes an extremely rare variant of the coracobrachialis superior muscle, or a very rare variant of the CBM. Our findings highlight the importance of muscle variants in the shoulder region, especially the coracoid region, and are significant for radiologists, anatomists, physiotherapists and surgeons specializing in the shoulder joint.

Diagnostic block and radiofrequency ablation of the acromial branches of the lateral pectoral and suprascapular nerves for shoulder pain: a 3D cadaveric study

2021 ◽  
Vol 46 (4) ◽  
pp. 305-312
Author(s):  
John Tran ◽  
Philip Peng ◽  
Anne Agur ◽  
Nimish Mittal
Keyword(s):  
Radiofrequency Ablation ◽  
Shoulder Pain ◽  
Coracoid Process ◽  
Electrode Position ◽  
Anatomical Landmarks ◽  
Ultrasound Guided ◽  
Pectoral Nerve ◽  
Diagnostic Block ◽  
Superior Surface ◽  
Capture Rates

Background and objectivesAcromial branches of the lateral pectoral and suprascapular nerves have been proposed as targets for diagnostic block and radiofrequency ablation to treat superior shoulder pain; however, the nerve capture rates of these procedures have not been investigated. The objectives of this study were to use dissection and 3D modeling technology to determine the course of these acromial branches, relative to anatomical landmarks, and to evaluate nerve capture rates using ultrasound-guided dye injection and lesion simulation.MethodsUltrasound-guided dye injections, targeting the superior surface of coracoid process and floor of supraspinous fossa, were performed (n=5). Furthermore, needles targeting the superior and posterior surfaces of the coracoid process were placed under ultrasound guidance to simulate needle electrode position (n=5). Specimens were dissected, digitized, and modeled to determine capture rates of acromial branches of lateral pectoral and suprascapular nerves.ResultsThe course of acromial branches of lateral pectoral and suprascapular nerves were documented. Dye spread capture rates: acromial branches of lateral pectoral and suprascapular nerves were captured in all specimens. Lesion simulation capture rates: (1) when targeting superior surface of coracoid process, the entire acromial branch of lateral pectoral nerve was captured in all specimens and (2) when targeting posterior surface of coracoid process, the acromioclavicular and bursal branches of acromial branch of suprascapular nerve were captured in all specimens; coracoclavicular branch was captured in 3/5 specimens.ConclusionsThis study supports the anatomical feasibility of ultrasound-guided targeting of the acromial branches of lateral pectoral and suprascapular nerves. Further clinical investigation is required.

scholarly journals Avulsion Fracture of the Coracoid Process at the Coracoclavicular Ligament Insertion: A Report of Three Cases

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Takeshi Morioka ◽  
Kiyohisa Ogawa ◽  
Masaaki Takahashi
Keyword(s):  
Avulsion Fracture ◽  
Attachment Site ◽  
Coracoid Process ◽  
Type I ◽  
Coracoclavicular Ligament ◽  
Clavicular Fracture ◽  
Avulsion Fractures ◽  
Inferior Surface ◽  
Excellent Outcome ◽  
Conoid Ligament

Avulsion fracture at the site of attachment of the coracoid process of the coracoclavicular ligament (CCL) is extremely rare. We presented three adult cases of this unusual avulsion fracture associated with other injuries. Case  1 was a 25-year-old right-handed male with a left distal clavicular fracture with an avulsion fracture of the coracoid attachment of the CCL; this case was treated surgically and achieved an excellent outcome. Case  2 was a 39-year-old right-handed male with dislocation of the left acromioclavicular joint with two avulsion fractures: one at the posteromedial surface of the coracoid process at the attachment of the conoid ligament and one at the inferior surface of the clavicle at the attachment site of the trapezoid ligament; this case was treated conservatively, and unfavorable symptoms such as dull pain at rest and sharp pain during some daily activities remained. Case  3 was a 41-year-old right-handed female with a right distal clavicular fracture with an avulsion fracture of the coracoid attachment of the conoid ligament; this case was treated conservatively, and the distal clavicular fracture became typical nonunion. These three cases corresponded to type I fractures according to Ogawa’s classification as the firm scapuloclavicular connection was destroyed and also to double disruption of the superior shoulder suspensory complex. We recommend surgical intervention when treating patients with this type of acute or subacute injury, especially in those engaging in heavy lifting or overhead work.

Isolated Injury of the Coracoid Process: Case Report

1991 ◽  
Vol 31 (12) ◽  
pp. 1696-1697 ◽  
Author(s):  
JAVIER FARFÁN GIL ◽  
ANTONIO HAYDAR
Keyword(s):  
Case Report ◽  
Coracoid Process ◽  
Isolated Injury

scholarly journals Coracoid Process: The Lighthouse of the Shoulder

Radiographics ◽  
2016 ◽  
Vol 36 (7) ◽  
pp. 2084-2101 ◽  
Author(s):  
Hussan Mohammed ◽  
Matthew R. Skalski ◽  
Dakshesh B. Patel ◽  
Anderanik Tomasian ◽  
Aaron J. Schein ◽  
...  
Keyword(s):  
Coracoid Process

scholarly journals Geometric Morphology of the Coracoacromial Ligament: A Cadaveric Study

2019 ◽  
Vol 2019 ◽  
pp. 1-8
Author(s):  
Mehmet Demir ◽  
Bülent Güneri
Keyword(s):  
Statistical Analysis ◽  
Shoulder Pain ◽  
Humeral Head ◽  
Common Knowledge ◽  
Coracoid Process ◽  
Coracoacromial Ligament ◽  
Death Time ◽  
The Mean ◽  
Geometric Morphology ◽  
Digital Caliper

The coracoacromial ligament (CAL), which restrains superior displacement of humeral head, connects the acromion and coracoid process. Due to the ligament’s variations and its role in shoulder pain, CAL was investigated in this study. Sixty shoulders of 34 cadavers, from persons aged 61-98 (80.95 ± 8.81) years at death time, were dissected. The lengths of lateral (LBL) and medial borders (MBL), widths of acromial (AIW) and coracoid insertions (CIW), and thicknesses of lateral (LSTAI) and medial (MSTAI) sides of acromial insertions were measured by digital caliper. The data were subjected to statistical analysis. 24 (40%) V-shaped, 12 (20%) broad-banded, 9 (15%) quadrangular, 9 (15%) Y-shaped, and 6 (10%) multiple-banded types were identified. The mean total LBL, MBL, AIW, CIW, LSTAI, and MSTAI were 34.94 ± 4.59 mm, 33.58 ± 5.31 mm, 29.82 ± 9.48 mm, 12.62 ± 3.95 mm, 1.29 ± 0.17 mm, and 0.90 ± 0.22 mm, respectively. The mean LBL (39.12 ± 4.29 mm), MBL (36.48 ± 3.9 mm), and CIW (37.01 ± 3.39 mm) were significantly greatest in quadrangular type (p<0.001). The mean AIW was slightly greatest in quadrangular type (p=0.069). The mean LSTAI was significantly greatest in multiple-banded type (1.45 ± 0.10 mm, p<0.001) whereas the mean MSTAI was significantly greatest in quadrangular type (1.23 ± 0.23 mm, p<0.001). CAL is quite variable regarding morphology, dimensions, and insertion features. Despite common knowledge, MSTAI and MBL of CAL can be greater than lateral counterparts in some types. To obtain complete release of CAL at acromion, the clearance of ligament fibers in an area with the dimensions of around 16 mm in mediolateral and 15 mm in anteroposterior direction, beginning from the lateral edge of acromial insertion, is recommended.

scholarly journals Latarjet procedure for failed arthroscopic Bankart repair: a case report

2020 ◽  
Vol 8 (5) ◽  
pp. 1921
Author(s):  
I. G. N. Wien Aryana ◽  
Rizki Zainuraditya
Keyword(s):  
Shoulder Dislocation ◽  
Coracoid Process ◽  
Bankart Repair ◽  
Anterior Shoulder Dislocation ◽  
Latarjet Procedure ◽  
Recurrence Rates ◽  
Arthroscopic Bankart Repair ◽  
Long Term Follow Up

Arthroscopic Bankart Repair (ABR) provides acceptable results for recurrent anterior shoulder dislocation. However, recent studies have shown recurrent rates of 4-19% or even up to 35-40% in patients aged <25 years, and the results tend to get worse after long-term follow-up. The Latarjet procedure can improve anterior stability by multiple mechanisms, not only can the Bankart lesion be repaired and provide stability, but the transfer of the coracoid process extends the bony articular arc of the glenoid, and the addition of the conjoint tendon may provide dynamic stability as well. The Latarjet procedure for correcting recurrent anterior shoulder dislocation led to good and excellent results in 82.7% of the cases. The Latarjet procedure had the lowest re-dislocation rate, which was significantly lower than the arthroscopic Bankart repair. Latarjet procedure is effective in terms of restoring anteroinferior glenohumeral stability and good option for failed arthroscopic Bankart repair. Recurrence rates of instability are acceptable and re-operation rates were low.

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