Abstract
Total hip arthroplasty (THA) is a successful surgery in the treatment of hip pain,
but there are potential complications, of which dislocation is one of the most common.
Dislocation management is a challenging problem that requires a multimodal approach,
and the use of dual mobility implants is an option. We present a patient with a history
of femoral neck fracture who underwent THA with a double mobility implant. On the
18th postoperative day, after a fall to the ground, she developed prosthesis dislocation
and had a complication after closed reduction, a subsequent intraprosthetic dislocation.
After a radiographic diagnosis, the patient presented mechanical signs of hip flexion
caused by a disassociated double mobility implant. The revision surgery was indicated,
but the patient chose not to perform the necessary surgical procedure. A careful postoperative
study of the radiographs revealed an eccentric femoral head and evidence of disassociated
implantation in the surrounding soft tissues. Radiographs after closed reduction of
intraprosthetic dislocations should be examined thoroughly.
Keywords
arthroplasty, replacement, hip - hip - hip dislocation - periprosthetic fractures
