Abstract: An intramedullary nail assembly for use in a medullary canal of a long bone is provided. The assembly includes a nail for positioning at least partially in the medullary canal. The nail includes an aperture therethrough. The assembly also includes a screw fittably positioned in the aperture of said nail. The screw has a shank defining a end and a periphery of the shank. A portion of the periphery defines a thread form. The thread form includes a first flank, a crest adjacent the first flank and a second flank spaced from the first flank and adjacent the crest. The crest and the first flank form a first angle therebetween. The crest and the second flank form a second angle therebetween. The first angle and the second angle are different from each other.

Abstract: An orthopaedic screw is provided. The orthopaedic screw includes a shank defining an end and a periphery of the shank. A portion of the periphery defines a thread form The thread form includes a first flank, a crest adjacent the first flank and a second flank spaced from the first flank and adjacent the crest. The crest and the first flank form a first angle between the crest and the first flank. The crest and the second flank form a second angle between the crest and the second flank. The first angle and the second angle are different from each other.

Abstract: An orthopaedic screw is provided. An orthopaedic screw for positioning in an aperture of an intramedullary nail is provided. The screw includes a shank defining a end and a periphery of the shank. A portion of the periphery defines a thread form. The thread form including a first flank, a crest adjacent the first flank and a second flank spaced from the first flank and adjacent the crest. The crest and the first flank form a first spatial relationship therebetween. The crest and the second flank form a second spatial relationship therebetween. The first spatial relationship and the second spatial relationship are asymmetrical with each other.