Orthopedic fixation devices and methods of installation thereof

A modular tulip system for spine stabilization, said system comprising:

• a first tulip assembly comprising a first tulip element and a second tulip element, wherein the first tulip element is configured to be received modularly over a first bone fastener, wherein the first tulip element comprises a first pair of arms defining a first channel and the second tulip element comprises a second pair of arms defining a second channel, wherein the first tulip element is separated from the second tulip element via a bridge, wherein the first pair of arms and the second pair of arms are formed monolithically with the bridge;
• a second tulip assembly comprising at least one tulip element, wherein the at least one tulip element is configured to be received modularly over a second bone fastener;
• a first locking cap assembly configured to be received in the first channel between the first pair of arms and a second locking cap assembly configured to be received in the second channel between the second pair of arms;
• and
• a first rod member that extends from the first tulip assembly to the second tulip assembly,
• wherein the first pair of arms and the second pair of arms are positioned in a vertical direction such that the first rod member can be downwardly deposited into the first pair of arms, and
• wherein the first tulip element of the first tulip assembly comprises an opening through a lower surface for receiving the first bone fastener therethrough and the second tulip element of the first tulip assembly has no opening through a lower surface.