Fig. 1 | BMC Musculoskeletal Disorders

Fig. 1

From: A radiostereometric and clinical long-term follow-up study of the surface replacement trapeziometacarpal joint prosthesis

Fig. 1

Detail of a model-based RSA scene analyzing migration of the SRTMTMC joint prosthesis. Three bone markers (red spheres) with a poor three-dimensional spatial distribution (CN 1016) resulting in poor rotational accuracy. The arrows indicate the three-dimensional coordinate system. Positive migration along the X-, Y-, and Z-axis indicates radial, distal and dorsal translation of the prosthesis with respect to the trapezial bone

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