We report preliminary results for a novel technique of endoscopic Whiteside transfer for massive gluteus medius tear: i.e., tendon reinsertion not or only partly feasible and/or severe fatty atrophy of the muscle. Endoscopic transfer of gluteus maximus and/or tensor fasciae latae is associated to gluteus medius tendon reinsertion if at least partial tendon repair is feasible. In a continuous series of 6 patients at a minimum 2 years’ follow-up, there was 1 early failure; 2 patients showed no improvement in pain and limping; 3 had satisfactory results, including 2 with complete resolution of limping and pain. Endoscopic Whiteside transfer associated to gluteus medius tendon repair provided only moderate results in terms of recovery of abduction power and resolution of Trendelenburg gait.