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Abstract
A total of 166 patients with acute, displaced subcapital fractures of the femoral
neck were treated over a 5-year period with the Monk Duopleet bi-articular prosthesis.
The average age at operation was 77.8 years. 81 patients were available for review
at an average of 37.1 months after surgery. Radiographic evidence of acetabular protrusion
was found in 3 patients (3.7 per cent). This incidence of protrusion is considerably
lower than that normally reported for one-piece prostheses such as the Austin Moore
or Thompson. The causes of acetabular protrusion are discussed.
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© 1986 Published by Elsevier Inc.