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Related Experiment Video

Updated: Jun 4, 2026

Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty
09:31

Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty

Published on: February 27, 2018

Acetabular component positioning in total hip arthroplasty: an evidence-based analysis.

Joseph T Moskal1, Susan G Capps

  • 1Virginia Tech Carilion School of Medicine, Roanoke, Virginia 24106, USA. jmoskal@carilionclinic.org

The Journal of Arthroplasty
|February 8, 2011
PubMed
Summary

Navigated total hip arthroplasty (THA) shows improved acetabular component placement within the "safe zone" compared to conventional methods. This navigation technology also resulted in fewer patient dislocations, suggesting potential benefits for THA outcomes.

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Area of Science:

  • Orthopedic Surgery
  • Surgical Navigation Technology

Background:

  • Navigated total hip arthroplasty (THA) is proposed to enhance component positioning accuracy.
  • Conventional (N-NAV) THA relies on traditional methods for component placement.

Purpose of the Study:

  • To evaluate the precision of acetabular component placement using navigated THA versus conventional THA.
  • To assess the clinical outcomes, specifically dislocation rates, associated with navigated THA.

Main Methods:

  • A systematic review of published literature was conducted across major medical and publisher databases.
  • Nine studies, encompassing 1479 THA procedures, were included for analysis.
  • Data on acetabular component abduction, anteversion, "safe zone" placement, and dislocation incidence were compared between navigated and conventional groups.

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Last Updated: Jun 4, 2026

Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty
09:31

Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty

Published on: February 27, 2018

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve
09:51

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve

Published on: September 7, 2022

Main Results:

  • No statistically significant difference was found in mean acetabular component abduction and anteversion angles between navigated (NAV) and non-navigated (N-NAV) THA.
  • Navigated THA demonstrated a statistically significant higher incidence of acetabular component placement within the "safe zone" compared to N-NAV.
  • The incidence of THA dislocations was significantly lower in the NAV group than in the N-NAV group.

Conclusions:

  • Navigated THA offers improved control over acetabular component positioning within the "safe zone" compared to conventional techniques.
  • Reduced dislocation rates in navigated THA suggest potential patient benefits and improved surgical outcomes.
  • Navigation technology in THA may lead to tighter control of component positioning, enhancing surgical precision and patient safety.