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International Journal of Morphology

On-line version ISSN 0717-9502


RANI, Anita et al. Coracoclavicular and Costoclavicular Joints at a Common Juncture: A Rare Phenomenon. Int. J. Morphol. [online]. 2009, vol.27, n.4, pp.1089-1092. ISSN 0717-9502.

Movements at the human shoulder girdle are the result of complex interplay of glenohumeral, acromioclavicular, sternoclavicular and scapulothoracic articulations. Clavicle apart from articulating with the scapula and sternum is also connected with first rib by costoclavicular ligament and with coracoid process by coracoclavicular ligament. At times the area of attachment of these ligaments on clavicle, first rib and scapula show faceted apophysis suggesting the presence of additional diarthrodial articulations. Costoclavicular joint exists between clavicle and first rib and coracoclavicular joint between clavicle and coracoids process. Both these joints are described in the literature, but the concurrent occurrence of them in the same bone has not been reported yet. We found two clavicles, one of right and other of left side, both of them showed faceted apophysis for costoclavicular and coracoclavicular joint simultaneously, which is rare phenomenon.

Keywords : Clavicle; Scapula; First rib; Costoclavicular ligament; Costoclavicular joint; Coracoclavicular ligament; Coracoclavicular joint.

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