Orthopaedic trauma surgeons and direct anterior total hip arthroplasty: evaluation of learning curve at a level I academic institution

Abstract

Background

Interest in the direct anterior approach for total hip arthroplasty has increased over recent years; however, the potential for substantial complications exists, especially during the surgeon’s learning curve. We evaluated the change in various metrics to help identify a single surgeon’s learning curve. Additionally, we examined whether the learning curve was different for primarily arthroplasty versus trauma-trained surgeons.

Methods

We reported outcomes from the first 50 total hip arthroplasties performed through a direct anterior approach by a trauma fellowship-trained orthopaedic surgeon. Intraoperative and post-operative clinical outcomes were evaluated, including length of procedure, estimated blood loss, length of hospitalization, disposition to home versus care facility, need for blood transfusion, and complications. Previous reported learning curve outcomes were analysed with a comparison between those who are primarily arthroplasty specialists versus those who include hip arthroplasty as only a portion of their practice.

Results

A significant difference in surgical time from 135 to 113 min was observed between the first 25 cases and the last 25. Estimated blood loss (EBL) and lateral femoral cutaneous nerve injury rates decreased but not to a significant degree. Among reported learning curves, surgical time was significantly lower among fellowship-trained arthroplasty specialists when compared with other surgeons.

Conclusion

Our data support that surgeons who perform primarily joint arthroplasty will likely have a decreased surgical time, but similar EBL compared to those who include arthroplasty as only a portion of their practice, however, a number of confounding variables do exist, and additional investigation is warranted.

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Correspondence to Cyril Mauffrey.

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IRB ethical approval was obtained prior to the start of this study.

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There was no funding received for this study.

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Informed consent was obtained from all individual participants included in the study.

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Authorship statement: Each author confirms that he or she was involved in the development, writing, and editing of this manuscript. Each has had the opportunity to review the final version of the submitted work.

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York, P.J., Logterman, S.L., Hak, D.J. et al. Orthopaedic trauma surgeons and direct anterior total hip arthroplasty: evaluation of learning curve at a level I academic institution. Eur J Orthop Surg Traumatol 27, 421–424 (2017). https://doi.org/10.1007/s00590-017-1937-5

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Keywords

  • Direct anterior approach
  • Learning curve
  • Total hip arthroplasty