Two cases of implant removal failure after open reduction and internal fixation using the Prima Hip Screw Side Plate system for femoral neck fracture.

We report two cases of implant removal failure following internal fixation of femoral neck fractures using the Prima Hip Screw Side Plate (PHS-SP) system. Case 1 involved an 80-year-old woman with stripped screw heads, which prevented standard screw removal. The femoral neck was osteotomized, and the screws were severed to allow removal of the plate. Case 2 involved a 50-year-old man in whom a screw was firmly lodged in the barrel of the implant, making extraction impossible. The protruding screw was excised, and a second operation was later performed to cut the femoral neck and remove the implant. Conclusion: In both cases, implant removal required osteotomy of the femoral neck and mechanical destruction of the screws. These cases highlight the potential for implant removal failure in locking plate systems, and the importance of preoperative planning and patient counseling.