Hip & pelvis

The Korean Hip Society (대한고관절학회)
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Bipolar Hemiarthroplasty in Unstable Intertrochanteric Fractures with an Effective Wiring Technique

  • Jae-Hwi Nho (Department of Orthopaedic Surgery, Soonchunhyang University Hospital Seoul) ;
  • Gi-Won Seo (Department of Orthopaedic Surgery, Soonchunhyang University Hospital Seoul) ;
  • Tae Wook Kang (Department of Orthopaedic Surgery, Soonchunhyang University Hospital Seoul) ;
  • Byung-Woong Jang (Department of Orthopaedic Surgery, Soonchunhyang University Hospital Gumi) ;
  • Jong-Seok Park (Department of Orthopaedic Surgery, Soonchunhyang University Hospital Cheonan) ;
  • You-Sung Suh (Department of Orthopaedic Surgery, Soonchunhyang University Hospital Seoul)
  • Received : 2022.10.12
  • Accepted : 2023.02.01
  • Published : 2023.06.30
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Abstract

Purpose: Bipolar hemiarthroplasty has recently been acknowledged as an effective option for treatment of unstable intertrochanteric fracture. Trochanteric fragment nonunion can cause postoperative weakness of the abductor muscle and dislocation; therefore, reduction and fixation of the fragment is essential. The purpose of this study was to perform an evaluation and analysis of the outcomes of bipolar hemiarthroplasty using a useful wiring technique for management of unstable intertrochanteric fractures. Materials and Methods: A total of 217 patients who underwent bipolar hemiarthroplasty using a cementless stem and a wiring technique for management of unstable intertrochanteric femoral fractures (AO/OTA classification 31-A2) at our hospital from January 2017 to December 2020 were included in this study. Evaluation of clinical outcomes was performed using the Harris hip score (HHS) and the ambulatory capacity reported by patients was classified according to Koval stage at six months postoperatively. Evaluation of radiologic outcomes for subsidence, breakage of wiring, and loosening was also performed using plain radiographs at six months postoperatively. Results: Among 217 patients, five patients died during the follow-up period as a result of problems unrelated to the operation. The mean HHS was 75±12 and the mean Koval category before the injury was 2.5±1.8. A broken wire was detected around the greater trochanter and lesser trochanter in 25 patients (11.5%). The mean distance of stem subsidence was 2.2±1.7 mm. Conclusion: Our wiring fixation technique can be regarded as an effective additional surgical option for fixation of trochanteric fracture fragments during performance of bipolar hemiarthroplasty.

Keywords

Acknowledgement

This work was supported by the Soonchunhyang University Research Fund.

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