Gerontological aspects of degenerative changes of the shoulder-joint. (Radiological and clinical studies)

In a series of radiological studies of both shoulder joint of 505 aged persons considering themselves healthy, the authors have systematized and statistically analysed the changes detected. Based on an increasing frequency as a function of age, on the identical ratio of occurrence by sexes and sides, on simultaneous occurrence, and on the identity of bilateral phenomena, the authors interpret these radiological changes as the consequence of a primary degenerative process. In the course of detailed clinical examinations and tests made in 100 cases taken at random, the authors have found no evaluable number and degree of limitations of motion, nor any evaluable difference in respect of the right and left shoulder joint of males and females.