Proximal humerus fractures are common injuries. Locking plates and anterograde medullary nails are the two most common fixation devices used when open reduction and internal fixation (ORIF) is indicated. Complications related to fracture and to hardware are numerous, especially shoulder stiffness. The goal of this study is to report the clinical outcomes of gleno-humeral arthroscopic arthrolysis combined with hardware removal. A total of 58 patients (25 men, 33 women) with a mean age of 58 years (24–79) were reviewed retrospectively. Forty of them were active workers (5 heavy workers), and 18 were retired. A total of 24 fractures were reported after sport accident, 26 after domestic accident, and 8 after high energy trauma. Thirty-four patients with 3 or 4 part fractures (fracture through the anatomic neck and tuberosities), 20 patients with two part (displaced surgical neck) fracture and 4 cases of fracture of the tuberosities were operated. We combined a gleno-humeral arthrolysis by arthroscopy and a removal of the hardware using the previous incision for the plate or by arthroscopy for the nail. The average follow-up was 23 months (range 6–60). Pain in Constant Murley score (CS) increased from 7.3 ± 3.8 points preoperatively to 13 ± 2.76 points post-operatively (p