Abstract
Coracoclavicular joint (CCJ) is a rare cause of shoulder pain. CCJ is not described in most orthopaedic textbooks, leading to lack of awareness in the general orthopaedic community. In that way the incidence of symptomatic cases is underestimated. We present the case of a symptomatic osteoarthtritic CCJ in a 46-year-old male patient with nearly complete relief of pain after therapeutic injection of the CCJ. The radiological signs of CCJ are briefly discussed to increase awareness of this very rare entity.
Highlights
CCJ is a rare anomalous joint found between the coracoid process of the scapula and the conoid tubercle of the clavicle A true synovial diarthroidal coracoclavicular joint in humans is rare
Singh V et al [1] analysed all published cases about symptomatic CCJ. In their thorough analysis of 21 symptomatic CCJ the most common presenting feature was shoulder pain in 12 (70.58%) patients, followed by limitation of shoulder movements associated with painful arc in five patients (29.41%)
Symptoms were ascribed to osteoarthritis of anomalous CCJ in three (17.65%) patients and supracoracoid impingement in three (17.65%) cases [1]
Summary
Alexander Schuh1*, Frank Seehaus, Ndubuisi OC Onyemaechi and Wolfgang Hönle1 1Musculoskeletal Center, Neumarkt Hospital, 92318 Neumarkt, Germany 2Orthopaedic Department University of Erlangen-Nuremberg, Germany 3Department of Surgery, University of Nigeria Teaching Hospital, Ituku-Ozalla Enugu, Nigeria
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