DR. HERBERT had studied the tissue-reactions about vitallium cups and acrylic prostheses used in arthroplasty (1952). He stressed their function of transmitting power and weight as well as allowing movement. A secondary operation after cup arthroplasty revealed a lining of smooth fibrous tissue over healthy bone. Necropsy three years after insertion of an acrylic head revealed similar changes at the upper lip-of the femoral stump; but the lower lip presented bone sclerosis and some-cartilaginous metaplasia in its covering, the responses to pressure. No foreign body reaction was evident. A prosthesis should distribute weight widely and equally, and its insertion should be planned from tracings of fullface radiographs of the femoral neck. In drilling for a Judet prosthesis a special apparatus would compensate for the deviation of the axis of the neck from the centre of the head. Contrary to British opinion, Dr. Herbert favoured the vitallium cup in ankylosing spondylitis, and for this alone. Prostheses did not arrest degeneration: they only changed its site.
Blunt diaphragmatic rupture in the absence of other surgical injuries carries low mortality. Operative repair of diaphragmatic rupture can be deferred without appreciable increased mortality if no other indication mandates immediate surgery.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.