Richard Smith ankle joint prosthesis

The Richard Smith ankle joint prosthesis (Figure 11.5), designed in 1972, was an unconstrained, ball-and-socket type design with metal tibial socket and UHMWPE talar ball [17]. It has been described as a multi-axis joint, where rotation of the tibia can occur about any of the major three axes and the rotational motion is not limited [18, 19]. In a clinical study of 24 Smith ankle replacements, with 18 replacements followed for an average of 7 years (implanted between 1975 and 1979), there was an improvement of range of motion in 10 ankles [17]. However, seven patients... 

FIGURE 11.5 Schematic of the Richard Smith ankle joint prosthesis. 

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See also in sourсe #XX -- [ ]

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