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Fig. 2B —Buechel-Pappas total ankle prosthesis (Endotec). Similar to
STAR (Scandinavian Total Ankle Replacement, Waldemar Link) device,
Buechel-Pappas ankle replacement is cementless, three-component
(mobile-bearing) design. Tibial component is stabilized by stem that extends
into tibial metaphysis (arrowhead). Ultrahigh-molecular-weight
polyethylene meniscus (thick arrow) glides along metallic talar
component (thin arrow) stabilized by ridge on its undersurface
(asterisk) that articulates with corresponding longitudinal groove on
talar component. Design allows limited inversion and eversion of ankle joint
without loss of congruity and requires minimal talar bone resection.
Anteroposterior radiograph of Buechel-Pappas arthroplasty device.
