My purpose in this presentation is to call attention to the incidence of deformities and disabilities of the knees, which could very often be lessened or prevented by an earlier recognition of the potential dangers incident to the indifferent management and lack of mechanical treatment, in cases of paralysis, arthritis and other causes of knee contractures.
It is not my purpose to discuss knee contractures of all kinds. The discussion of spastic contracture, for instance, would lead us too far afield. Nor is it my purpose to cover this subject in its many phases. The flexed knees due to neurologic disease and cicatrixes from burns will not be individually considered for obvious reasons.
The contractures of the knees which are very frequently encountered by the orthopedic surgeon are the result of infantile paralysis which has left the strong flexors to overcome, more or less completely, the paralyzed extensors. The degrees