Recurrent and radiographically unrecognized iatrogenic intra‐prosthesis hip dislocations

Hip dislocation is a common complication after total hip arthroplasty surgery. Newer prosthetic implants aim to reduce the risk of dislocation. The new dual mobility implant has a unique design that may result in intra‐prosthetic dislocation. We report a case of a recurrently missed iatrogenic intra‐prosthetic dislocation following closed reduction efforts in the emergency department (ED). Emergency physicians must be aware of the design, pitfalls, and management of this new prosthetic hip design.