Pelvic Incidence Changes Between Flexion and Extension

ConclusionsPI is a dynamic parameter that changes between flexion and extension. Changes in SS are the main factor involved in these changes, implicating movement through the sacroiliac joints as the cause. Obese patients have greater changes in PI from flexion to extension.Level of EvidenceLevel II.
Source: Spine Deformity - Category: Orthopaedics Source Type: research