Late dislocation is associated with recurrence after total hip arthroplasty

Takashi Itokawa, Yasuharu Nakashima, Takuaki Yamamoto, Goro Motomura, Masanobu Ohishi, Satoshi Hamai, Mio Akiyama, Masanobu Hirata, Daisuke Hara, Yukihide Iwamoto

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)


Purpose: This study was conducted to examine the risk factors for recurrent dislocation after total hip arthroplasty (THA) and test the hypothesis that late dislocations are associated with recurrence. Methods: A total of 1,250 hips in 1,017 patients were retrospectively reviewed. All operations were performed through the posterolateral approach with posterior soft tissue repair. An early or late dislocation was defined as a dislocation occurring before or after one year postoperatively, respectively. Results: Dislocation occurred in 36 hips (2.9 %) and 20 of them experienced recurrence. Recurrent dislocations were observed in ten out of 25 hips (40.0 %) with early dislocation; however, ten out of 11 hips (90.9 %) with late dislocation experienced recurrence (p = 0.0046). Multivariate analysis revealed that late dislocation was significantly associated with recurrence with odds ratio of 5.94 per year. Seven in 20 hips with recurrent dislocation required surgical treatment. Conclusion: Late dislocation significantly contributed to the development of recurrent dislocations.

Original languageEnglish
Pages (from-to)1457-1463
Number of pages7
JournalInternational Orthopaedics
Issue number8
Publication statusPublished - Aug 2013

All Science Journal Classification (ASJC) codes

  • Surgery
  • Orthopedics and Sports Medicine


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