Early Results from the Evaluation of Spinopelvic Angles in Patients with Hip Pain by Femoroacetabular Impingement

Purpose: to evaluate spinopelvic angles in patients with hip pain and femoroacetabular impingement (FAI).After the discovery of the FAI in 2003, a complete biomechanical analysis of the lower limb and its relationship with the spine became indispensable, in the context of preservative surgery and/or at hip arthroplasty.Methods: twenty patients aged between 18 and 60 years with hip pain were evaluated.All had pain for more than 3 months and FAI syndrome.All signed the informed consent form, had their anthropometric data and Harris Hip Score (HHS) evaluated.Results: the average age was 40 years and female gender in 76%.The mean Body Mass Index (BMI) was 21 kg/m2 and the mean HHS was 70 points.The time between hip pain onset and clinical evaluation was two and a half years.Alterations of the spinopelvic angles were found in 58% of the patients.We found statistically significant differences at the sacral slope (SS) (p: 0.006) and anterior pelvic plane (APP) angles (p: 0.013), between patients with and without hip arthrosis, and a decrease in both angles between standing and sitting positions.This translates into a more up verticalization pelvis position and posterior tilt, the greater the arthrosis. Conclusion:the presence of lower back pain associated with angular spinopelvic alterations in 58% of patients with FAI and the difference between patients according to the degree of hip arthrosis reveal the importance of evaluating this parameters and showing this early results.