Hip & pelvis

The Korean Hip Society (대한고관절학회)
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Surgeon's Experience and Accuracy of Preoperative Digital Templating in Primary Total Hip Arthroplasty

  • Maria Surroca (Hip Unit, Department of Orthopedic Surgery, Fundacio Assistencial Mutua Terrassa) ;
  • Silvia Miguela (Hip Unit, Department of Orthopedic Surgery, Fundacio Assistencial Mutua Terrassa) ;
  • Agusti Bartra-Ylla (Hip Unit, Department of Orthopedic Surgery, Fundacio Assistencial Mutua Terrassa) ;
  • Jorge H. Nunez (Hip Unit, Department of Orthopedic Surgery, Fundacio Assistencial Mutua Terrassa) ;
  • Francesc Angles-Crespo (Hip Unit, Department of Orthopedic Surgery, Fundacio Assistencial Mutua Terrassa)
  • Received : 2023.08.08
  • Accepted : 2023.12.22
  • Published : 2024.06.01
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Abstract

Purpose: Preoperative planning has become essential in performance of total hip arthroplasty (THA). However, data regarding the effect of the planner's experience on the accuracy of digital preoperative planning is limited. The objective of this study was to assess the accuracy of digital templating in THA based on the surgeon's experience. Materials and Methods: A retrospective study was conducted. An analysis of 98 anteroposterior pelvic radiographs, which were individually templated by four surgeons (two hip surgeons and two orthopaedic residents) using TraumaCad® digital planning, was performed. A comparison of preoperatively planned sizes with implanted sizes was performed to evaluate the accuracy of predicting component size. The results of preoperative planning performed by hip surgeons and orthopaedic residents were compared for testing of the planner's experience. Results: Femoral stem was precisely predicted in 32.4% of cases, acetabular component in 40.3%, and femoral offset in 76.7%. Prediction of cup size showed greater accuracy than femoral size among all observers. No differences in any variable were observed among the four groups (acetabular cup P=0.07, femoral stem P=0.82, femoral offset P=0.06). All measurements showed good reliability (intraclass correlation coefficient [ICC] acetabular cup: 0.76, ICC femoral stem: 0.79). Conclusion: The results of this study might suggest that even though a surgeon's experience supports improved precision during the planning stage, it should not be restricted only to surgeons with a high level of experience. We consider preoperative planning an essential part of the surgery, which should be included in training for orthopaedics residents.

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References

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