Related Experiment Video
Updated: Feb 11, 2026
Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty
Published on: February 27, 2018
Restoring femoral offset is the most important technical factor in preventing total hip arthroplasty dislocation
Braxton Forde1, Kathleen Engeln2, Hany Bedair3
1The Johns Hopkins University School of Medicine, Baltimore, MD, United States.
Purpose:
Our aim was to determine if acetabular component position, femoral offset restoration, or leg-length equality is most important for total hip arthroplasty (THA) stability.
Methods:
A matched case (n = 67)-control (n = 247) design and conditional logistic regression model were used to examine risk factors for dislocation in primary THA.
Results:
When femoral offset was at least 3 mm greater than that of the contralateral hip, risk of dislocation was lower (p = 0.0192). Neither leg-length difference nor acetabular component abduction or version angle was associated with dislocation.
Conclusions:
Our data suggest restoring femoral offset is the most important technical factor in preventing THA dislocation.
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