J Korean Orthop Assoc.  2010 Jun;45(3):222-227. 10.4055/jkoa.2010.45.3.222.

Structural Analysis of the Coracoclavicular Ligaments in Koreans: A Cadaveric Study

• Chung ST
• Yoo JH
• Joh JW
• Kim SY
• Bak DJ

• KMID: 2185522
• DOI: http://doi.org/10.4055/jkoa.2010.45.3.222

Abstract

PURPOSE
Recently, the methods for reconstructing the acromion joint focused on an anatomical reconstruction. However, the reports of the anatomical method of the coraco-clavicle ligament have given different descriptions. This paper reports an anatomical study of the coraco-clavicle ligament in Koreans. MATERIALS AND
METHODS
One hundred and two coraco-clavicle ligaments distracted from 6 fresh cadavers and 96 drug-administered cadavers were analyzed and calibrated. A quantitative analysis of the shape and location of the attachment site of the coracoid process and clavicle was performed, and the clinical and radiological applications were examined considering the calibrating variables.
RESULTS
The conoid and trapezoid ligaments were thick and wide when measured in the middle part, and the average length up to the attachment site of the coracoid process was 11.3+/-3.6mm in men and 9.5+/-2.2mm in women. The average length of the clavicle was 158.5+/-55.7mm in men and 146.6+/-50.9mm in women. The length between the middle of the trapezoid tubercle or conoid tubercle and the lateral edge of the clavicle was 21.7+/-3.2mm and 42.8+/-3.4mm respectfully in men and 20.9+/-1.8mm and 39.9+/-3.3 respectfully in women, respectively. The angles of the conoid ligament and trapezoid ligament from the anteroposterior and lateral aspects were measured to be 25+/-8degrees and 19+/-3degrees respectfully in men and 28+/-5degrees and 17+/-3degrees degree respectfully in women.
CONCLUSION
A more delicate reconstruction of the coraco-clavicle ligament is believed to be possible with regard to the mean distance from the clavicle to the conoid and trapezoid ligaments and the anticipation of a relationship between these ligaments.

Keyword

conoid ligament; trapezoid ligament; constructive analysis

MeSH Terms

Acromion
Cadaver
Clavicle
Female
Humans
Joints
Ligaments
Male

Figure

• 

  Figure 1 (A) The distance from the lateral end of the clavicle to the lateral extent of the trapezoid ligament (a) and to the medial end of the trapezoid ligament (b). (B) The distance from the lateral end of the clavicle to the lateral extent of the conoid ligament (c) and to the medial end of the conoid ligament (d).

• 

  Figure 2 The distance from the posterior cortex of the clavicle to (a) the posterior extent of the trapezoid ligament (b) the anterior extent of the trapezoid ligament (c) the posterior extent of the conoid ligament (d) the anterior extent of the conoid ligament.

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  Figure 3 (A) The width (a) and the thickness (b) measured at the midsubstance of the trapezoid ligament. (B) The width (a) and the thickness (b) measured at the midsubstance of the conoid ligament.

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  Figure 4 (A) The distance from the tip of coracoid to the anterior extent of the trapezoid ligament (a) and to the posterior extent of the trapezoid ligament (b). (B) The distance from the tip of coracoid to the anterior extent of the conoid ligament (c) and to the posterior extent of the conoid ligament (d).

• 

  Figure 5 Angle formed between the conoid and trapezoid ligaments on (A) AP and (B) lateral image.

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