Hip & pelvis

The Korean Hip Society (대한고관절학회)
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Reduction of the Femoral Head First, and Assembly of the MUTARS® Device in Case of Impossible Reduction during Total Hip Arthroplasty

  • Jee Young Lee (Department of Microbiology, College of Medicine, Kosin University) ;
  • Ye Jun Lee (Department of Orthopaedic Surgery, Inje University Haeundae Paik Hospital, College of Medicine, Inje University) ;
  • Gyu Min Kong (Department of Orthopaedic Surgery, Inje University Haeundae Paik Hospital, College of Medicine, Inje University)
  • Received : 2023.06.04
  • Accepted : 2023.08.21
  • Published : 2023.12.31
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Abstract

Dislocation after a total hip arthroplasty occurs in approximately 1% of patients; however, the frequency is much higher after revision surgery. To prevent dislocation, use of a larger femoral head is recommended, and a dual mobility femoral head has been introduced. However, reducing the dual mobility femoral head to the acetabular component is difficult in cases involving contracture in the soft tissue around the joint. A 72-year-old male patient who developed a periprosthetic joint infection underwent two-stage revision surgery using MUTARS®. Two months after the revision, the hip joint became dislocated and manual reduction was attempted; however, dislocation occurred again. During another revision using a dual mobility bearing, the soft tissue around the hip joint was too tight to reduce. The problem was overcome by first repositioning the dual mobility head into the acetabular socket, followed by assembly of the diaphyseal portion of the implant.

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References

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