Abstract: An osteotomy procedure may be performed to correct a misalignment of a bone, such as a bunion deformity. In some examples, the osteotomy procedure involves making a spherical-shaped cut transecting a first metatarsal, thereby forming a first metatarsal portion having a spherical-shaped projection and a second metatarsal portion having a spherical-shaped recess. The method further involves moving the second metatarsal portion in at least two planes relative to the first metatarsal portion, thereby adjusting an anatomical alignment of the second metatarsal portion.

Abstract: A platform cooling arrangement in a turbine rotor blade having a platform at an interface between an airfoil and a root, wherein the rotor blade includes an interior cooling passage formed therein that extends from a connection with a coolant source at the root to at least the approximate radial height of the platform. The platform cooling arrangement includes a platform slot formed through at least one of a pressure side slashface and a suction side slashface, the platform slot being in fluid communication with a high-pressure coolant region of the turbine rotor blade. An insert inserted in the platform slot, the insert having a blind channel extending inside the insert. The insert aligns with the platform slot to fluidly connect the channel to the high-pressure coolant region. At least one passage is in fluid communication with the channel and an exterior region of the turbine rotor blade.

Abstract: A platform cooling arrangement in a turbine rotor blade having a platform at an interface between an airfoil and a root, wherein the rotor blade includes an interior cooling passage formed therein that extends from a connection with a coolant source at the root to at least the approximate radial height of the platform. The platform cooling arrangement includes a platform slot formed through at least one of a pressure side slashface and a suction side slashface, the platform slot being in fluid communication with a high-pressure coolant region of the turbine rotor blade. An insert inserted in the platform slot, the insert having a blind channel extending inside the insert. The insert aligns with the platform slot to fluidly connect the channel to the high-pressure coolant region. At least one passage is in fluid communication with the channel and an exterior region of the turbine rotor blade.