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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.
Acta Ortopedica Brasileira
|September 12, 2022
Summary
Reduced spinopelvic mobility increases the risk of total hip arthroplasty (THA) dislocation. This study assessed spinopelvic mobility in patients with hip osteoarthritis, finding some patients exhibit reduced mobility, posing a higher dislocation risk.
Area of Science:
- Orthopedic Surgery
- Biomechanics
- Radiology
Background:
- Reduced spinopelvic mobility is a known risk factor for total hip arthroplasty (THA) dislocation.
- Understanding spinopelvic mobility is crucial for optimizing THA outcomes.
Purpose of the Study:
- To evaluate spinopelvic mobility in patients with primary hip osteoarthritis awaiting THA.
- To determine the impact of hip flexion contracture on spinopelvic mobility.
Main Methods:
- Radiographic assessment of 30 adult patients with hip osteoarthritis and THA indication.
- Measurement of key parameters: pelvic incidence, pelvic tilt, sacral slope, lumbar flexibility, and spinopelvic mobility.
Main Results:
- Spinopelvic mobility varied significantly (6.90°–54.50°, mean 32.79° ± 11.42°).
- Patients with hip flexion contracture demonstrated higher spinopelvic mobility.
- Spinopelvic mobility correlated positively with pelvic tilt and lumbar flexibility.
Conclusions:
- Approximately 13.4% of patients exhibited reduced spinopelvic mobility (<20°).
- Reduced spinopelvic mobility is associated with an increased risk of THA dislocation.
- Hip flexion contracture may influence spinopelvic mobility in this patient cohort.
