Recurring luxation of the lower costal cartilages, with abnormal mobility and its associated symptomatic syndrome, was first described by Davies-Colley1 in 1922 under the caption of "Slipping Rib." Although apparently not a rare condition, it has received but little attention in medical literature.
Of the ten cases reported, seven occurred in women, two in men, and in one the sex was not designated. The ages of the patients ranged from 17 to 42 years. In only three cases was the malady preceded by a fairly definite history of injury.
In all instances a rather constant and classic picture was presented. Radiating from the site of the luxating cartilage along the costal or sternal margin, sharp and frequently excruciating pain was experienced as the result of lifting, or in certain motions of twisting or flexing the body. In most instances the patients were completely incapacitated by the pain. Some patients
Bisgard JD. SLIPPING RIBS: REPORT OF CASE. JAMA. 1931;97(1):23–24. doi:10.1001/jama.1931.27310010001009a
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