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"Condensing osteitis" of the clavicle, a previously undescribed entity, is characterized by pain along the top of the shoulder, which is aggravated by abduction of the arm.
Roentgenographically, there is increased bone density of the medial end of the clavicle and, histologically, there is an increased quantity and thickness (reinforcement) of normal cancellous bone and sometimes expansion with associated periosteal reactive bone. These changes are felt to be the result of increased or altered mechanical stress across the sternoclavicular joint.
The symptoms are alleviated by surgical excision of the involved end of the bone.
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G. Hassett and L. Barnsley Pain referral from the sternoclavicular joint: a study in normal volunteers Rheumatology, August 1, 2001; 40(8): 859 - 862. [Abstract] [Full Text] [PDF] |
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