Within the limitations of this study, the implant-abutment connection technology appears to have a significant impact on peri-implant CBLs, with the external connection paralleled by a significant reduction of CBLs.

| ABSTRACTThere have been several surgical options for the treatment of recurrent shoulder dislocation associated with significant size of Hill-Sachs lesion. The purpose of the study is to evaluate new surgical technique filling up engaging Hill-Sachs lesion with autogenous tricorticocancellous iliac bone graft fixed by absorbable pins. Tricorticocancellous bone graft is easily available, inexpensive and structurally stable, and demonstrates a higher union rate. Multiple absorbable pins provide sufficient stability, and there are little concerns of osteoarthritis when grafted materials were resorbed, or pins were protruded, and do not require second operation to be removed. We suggested that autogenous tricorticocancellous iliac bone graft fixed with absorbable pins in addition to conventional open capsular shift can be another option in patients with recurrent shoulder dislocation with engaging Hill-Sachs lesion.