Table 1 Details of the donors and of the implanted stems. GROUP A (top) contained paired femurs where one femur of each donor was implanted with the commercial stem, and the contralateral one with the OsteoCustom stem; GROUP B (bottom) consisted of femurs whose anatomy could not meet the eligibility criteria of the commercial stem and were implanted (unpaired) only with the OsteoCustom one. The right column reports the size of the stem. For the OFI-C the nominal diameter is indicated. For the OsteoCustom stems the size is indicated by five numbers: the first number indicates the diameter (in mm) of the proximal portion of the stem, the second and third numbers indicate the major and minor axes (in mm) of the elliptical distal section; the fourth number indicates the radius of curvature of the stem (in mm), the fourth number indicates the angle of internal/external rotation of the plane of curvature with respect to the major axis of the elliptical cross-section)

From: Improved primary stability and load transfer of a customized osseointegrated transfemoral prosthesis compared to a commercial one