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What do we get from navigation in primary THA?

Lisa Renner1, Viktor Janz1, Carsten Perka1

  • 1Centre for Musculoskeletal Surgery, Charité Universitätsmedizin, Berlin, Germany.

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|May 3, 2017
PubMed
Summary
This summary is machine-generated.

Computer navigation in total hip arthroplasty (THA) aids biomechanical restoration but faces challenges. High costs, longer surgery, and surgeon experience impact its widespread adoption and clinical benefits.

Keywords:
THAcombined anteversionnavigationsafe zone

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Area of Science:

  • Orthopedic Surgery
  • Medical Technology
  • Biomechanical Engineering

Background:

  • Computer navigation has been used in primary total hip arthroplasty (THA) for over two decades.
  • Imageless computer navigation offers potential for optimizing hip biomechanics during THA.

Purpose of the Study:

  • To evaluate the benefits and limitations of computer navigation in primary total hip arthroplasty.
  • To assess the impact of navigation on key surgical parameters and patient outcomes.

Main Methods:

  • Utilizes imageless computer navigation for acetabular component placement, determining anteversion and abduction.
  • Employs a femur-first technique to calculate combined anteversion.
  • Allows for adjustment of rotation center, femoral and acetabular offset, and intra-operative leg length equalization.

Main Results:

  • Navigation facilitates accurate placement of components and restoration of biomechanics.
  • Potential for optimizing combined anteversion, offset, and leg length equalization.
  • Disadvantages include high costs, longer operative times, and reliance on bony landmarks affected by soft tissue and surgeon experience.

Conclusions:

  • Hip navigation is a valuable technique for optimizing THA and restoring biomechanics.
  • Further high-quality, randomized controlled long-term trials are needed to confirm clinical advantages, cost-effectiveness, and survival rates.