Occult femoral neck fracture.

coronal imaging; figure 1C). She was treated with osteosynthesis (figure 1D) to stabilise the femoral neck fracture, which resulted in a good functional outcome at 6-month follow-up. Occult femoral neck fractures are frequently misdiagnosed. Once misdiagnosed, the non-displaced fracture may become displaced. When this occurs, patients may need to be treated with hip arthroplasty, which is more invasive than osteosynthesis. In the context of persistent hip pain where plain radiographs and CT reveal no abnormality, consideration should be given to the use of MRI as it can be more accurate at detecting occult hip fractures.