Tibial tray with fixation features

An orthopaedic prosthetic component, comprising:

• a plate including a distal surface, a distal-facing opening defined in the distal surface, a proximal surface configured to receive an insert component, and a curved outer wall extending between the distal surface and the proximal surface, and
• an elongated stem extending from the distal surface of the plate to a distal tip,
• wherein the plate further includes an intermediate wall positioned between the proximal surface and the distal surface, and an inner wall that extends inwardly from the distal-facing opening to the intermediate wall to define a distal pocket,
• wherein the plate further includes a plurality of inner pockets in the intermediate wall, each inner pocket being defined by a base wall that is positioned proximal of the intermediate wall and a rim wall that extends between an opening in the intermediate wall and the base wall, and each inner pocket including an annular channel positioned between the intermediate wall and the base wall,
• wherein each inner pocket has a narrowest opening defined by a corresponding peripheral edge and wherein each peripheral edge has a peripheral edge length and defines a surface area of the narrowest opening of the corresponding inner pocket,
• wherein the plate has total peripheral edge length that is equal to the sum of the peripheral edge lengths of the at least two inner pockets and a total opening surface area that is equal to the sum of the surface area of the narrowest openings of the at least two inner pockets, and
• wherein the ratio of the total peripheral edge length to the total opening surface area is in the range of 0.20 to 0.46, and
• wherein the distal surface and the intermediate wall have a surface roughness (Ra) in a range of 3.5 microns to 6.5 microns.