This trial randomized 30 patients to either a hip resurfacing system or conventional prosthesis total hip replacement (THR) to compare their gait mechanics over the short term. The 12 week assessment revealed that there were no significant differences between the techniques regarding kinetic, kinematic, or temporal-spatial gait parameter variables of the hip (except for peak abductor moments, which favoured the conventional treatment). Additional long-term assessments using larger sample sizes are required to further compare between these two treatment options.