Abstract: An intercalary implant has two stem members and a collar. One stem member includes a stem portion to be received in the intramedullary canal of a native end portion of a long bone and a threaded male portion to be outside of the intramedullary canal. The second stem member also includes a stem portion to be received in the intramedullary canal of the opposite native end portion of the long bone. The second stem member has a spacer portion and a shoulder to be outside of the intramedullary canal. The collar has an annular base portion with an opening and a cylindrical female threaded portion. When assembled, collar connects the first and second stem members and the implant spans a gap in the shaft of the long bone. The parts can be assembled without distracting the native end bone portions in the proximal-distal direction to prevent damage to soft tissue around the native end bone portions.

Abstract: An intercalary implant has two stem members and a collar. One stem member includes a stem portion to be received in the intramedullary canal of a native end portion of a long bone and a threaded male portion to be outside of the intramedullary canal. The second stem member also includes a stem portion to be received in the intramedullary canal of the opposite native end portion of the long bone. The second stem member has a spacer portion and a shoulder to be outside of the intramedullary canal. The collar has an annular base portion with an opening and a cylindrical female threaded portion. When assembled, collar connects the first and second stem members and the implant spans a gap in the shaft of the long bone. The parts can be assembled without distracting the native end bone portions in the proximal-distal direction to prevent damage to soft tissue around the native end bone portions.