Borderline industrial injuries.

Sometimes in cases of injury in which a claim for compensation is made on the basis that the injury is attributable to the claimant's work, the etiology is not clear cut. Such injuries tend to merge with and to overlap non-industrial ailments. This presentation deals with some of the more troublesome conditions of this order-among them chondromalacia of the patella, causalgia, Sudek's atrophy, shoulder-hand syndrome, whiplash injury, tenosynovitis, epicondylitis, acoustic trauma and acute coronary occlusion. Often in these conditions, it is almost impossible to determine accurately how much or how little of the associated disability is attributable to industrial cause. In most of them, however, early diagnosis and sympathetic management of injury when it does occur, are of great help in determining compensability and in returning the employe to suitable work.