International Orthopaedics

, Volume 42, Issue 11, pp 2555–2561 | Cite as

Computer-assisted surgery prevents complications during peri-acetabular osteotomy

  • Shinya HayashiEmail author
  • Shingo Hashimoto
  • Tomoyuki Matsumoto
  • Koji Takayama
  • Nao Shibanuma
  • Kazunari Ishida
  • Kotaro Nishida
  • Ryosuke Kuroda
Original Paper



The aim of study is to evaluate the accuracy of a navigation system during curved peri-acetabular osteotomy (CPO).


Forty-seven patients (53 hips) with hip dysplasia were enrolled and underwent CPO with or without navigation during surgery. Clinical and radiographical evaluations were performed and compared between the navigation group and non-navigation group, post-operatively.


The clinical outcomes were not significantly different between the navigation and non-navigation groups. Furthermore, post-operative reorientation of the acetabular fragment was similar between the navigation and non-navigation groups. However, the discrepancy between the pre-operative planning line and post-operative osteotomy line was significantly improved in the navigation group compared with that in the non-navigation group (p < 0.05). Further, the complication rate was significantly improved in the navigation group (p < 0.001).


The accuracy of the osteotomy’s position was significantly improved by using the navigation. Therefore, the use of navigation during peri-acetabular osteotomy can avoid complications.


Peri-acetabular osteotomy Navigation Accuracy Complication 


Author contribution

S. Haya designed the study. S. Haya, S. Hashi, KT, TM, KI, and NS collected the data. S. Haya and TM interpreted the data. KN performed the statistical analysis. S. Haya drafted the article. RK conducted the critical review and made the final approval.

Compliance with ethical standards

The study protocol was approved by our institutional ethics committee on September 8, 2011 (No. 1219), and informed consent for participation in the study was obtained from all participants.

Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© SICOT aisbl 2018

Authors and Affiliations

  • Shinya Hayashi
    • 1
    Email author
  • Shingo Hashimoto
    • 1
  • Tomoyuki Matsumoto
    • 1
  • Koji Takayama
    • 1
  • Nao Shibanuma
    • 2
  • Kazunari Ishida
    • 2
  • Kotaro Nishida
    • 1
  • Ryosuke Kuroda
    • 1
  1. 1.Department of Orthopaedic Surgery, Graduate School of MedicineKobe UniversityKobeJapan
  2. 2.Department of Orthopaedic SurgeryKobe Kaisei HospitalKobeJapan

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