Related Experiment Video
Updated: Aug 29, 2025

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
SPINOPELVIC MOBILITY IN PATIENTS WITH HIP OSTEOARTHRITIS AND TOTAL HIP ARTHROPLASTY INDICATION
Flavio Luis Garcia1, Guilherme Pianowski Pajanoti2, Helton Luiz Aparecido Defino1
1Universidade de São Paulo, School of Medicine of Ribeirão Preto, Department of Orthopedics and Anesthesiology, Ribeirão Preto, SP, Brazil.
Introduction:
Reduction of spinopelvic mobility is associated with an increased dislocation of total hip arthroplasty (THA).
Objective:
To assess 1) spinopelvic mobility in patients with primary hip osteoarthritis and THA indication and 2) the influence of hip flexion contracture on spinopelvic mobility.
Methods:
Thirty adult patients with primary hip osteoarthritis and THA indication were evaluated using radiographic parameters (pelvic incidence, pelvic tilt, sacral slope, lumbar flexibility, and spinopelvic mobility).
Results:
Spinopelvic mobility ranged from 6.90 a 54.50° (mean 32.79 ± 11.42) and the group of patients with hip flexion contracture had higher mobility. Spinopelvic mobility was correlated with pelvic tilt as well as with lumbar flexibility.
Conclusion:
Around 13.4% of patients had spinopelvic mobility under 20° , indicating reduced spinopelvic mobility and risk of THA dislocation. Level of Evidence III, Retrospective Comparative Study.

