The extraordinarily congruous nature of the joint and the interaction between the articular surfaces and soft-tissue stabilisers are the two factors that contribute to the stability of a normal elbow. A profoundly unstable elbow is the outcome of TTIE, which is characterised by the loss of the anterior coronoid buttress, the posterolateral stabilisation of the lateral ulnar collateral ligament (LUCL), and the valgus buttress of the radial head. This study aims to compare and evaluate the outcomes of patients who received radial head reconstruction (REC) or replacement (REP) following a TTIE in order to see if there are any changes in patient outcomes between the two treatment groups.