In sixteen cases in adults and children the author has been successful in reducing flexion deformities of the knees, non-bony in type, usually within three weeks. [SEE THE FIG. 3 IN SOURCE PDF]

The author believes, therefore, that this apparatus is efficient, since all possible methods of extending a leg are incorporated in this device, except skin traction, which can be added—but so far has not been necessary.

He further believes that it has some virtue in that the tibial head is constantly supported upon the trough of A, and subluxation of the tibia, which can occur with skin traction or pillows, is here eliminated.

Against this device there is the possibility of ischaemic slough under anterior thigh pad. This has not occurred recently in our experience; fact, it has occurred only once and that in a case in which we were too enthusiastic in obtaining rapid extension.

The device as manufactured by the Charitable Surgical Appliance Shop of Children's Hospital, Boston, Mass., is comparatively inexpensive. if desired it can be constructed of wood by any mechanic.