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Incidence of coracoclavicular joint in adult Nigerian
population
Olotu Joy E.1*, Oladipo G. S. 1, Eroje
M. A. 2 and Edibamode I. E. 1
1Department of Anatomy, College of Health
Sciences, University of Port Harcourt, Nigeria
2Department of Anatomy, School of Medical
Sciences, Niger Delta University, Bayelsa, Nigeria
*Corresponding author. E-mail:
olotujoy@yahoo.com.
Phone: 2348037752394
Accepted
3 March, 2008 |
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Coracoclavicular joint is a diarthrotic synovial joint
occasionally present between the conoid tubercle of the
clavicle and the superior surface of the horizontal part of
the coracoid process. We investigated the prevalence of the
coracoclavicular joint using 1637 antero-posterior chest and
shoulder radiographs of adults in a Nigerian population,
comprising 963 males and 674 females, aged 18 – 88 years. We
found nine with coracoclavicular joint, one of which was
bilateral and eight unilateral. Of the unilateral
coracoclavicular joint, five were present on the right and
three on the left. Furthermore, five of the
coracoclavicular joint occurred in men while four were in
women, giving an overall prevalence of the coracoclavicular
joint in our studied population as 0.55% at 95% confidence
interval of 2.16 – 12.67. The prevalence when compared with
previously reported studies indicated that the frequency of
the joint is low and its occurrence is rare among most
populations, but significantly higher among Asians. This
study documents, probably for the first time, the prevalence
of coracoclavicular joint in a Western Africa population.
Key
words:
Coracoclavicular joint, prevalence, clavicle, joint. |
