Pelvic Fractures and Their Impact on the Lower Back

Anatomical Relationship Between Pelvis and Lower Back

Pelvic ring fractures with posterior involvement, such as 2-3 column fractures, frequently affect the sacrum, which is an integral part of both the pelvic ring and the lower spine 2
According to the Tile classification, unstable fractures and pelvic ring fractures with posterior injuries are associated with more frequent complications and can directly impact the lower back 1
Sacral fractures, which often accompany complex pelvic fractures, can be the source of radiated hip/groin pain and lower back pain 2

Patients with pelvic fractures frequently present with intractable lower back pain, especially when there is posterior element involvement 2
Unstable pelvic fractures, particularly those associating bilateral ischio-pubic rami and sacro-iliac dislocation, have a higher risk of associated injuries, including to the lower back 3, 4
According to the Young-Burgess classification, unstable fractures are associated with significantly greater mortality and morbidity, including back-related complications 4

When evaluating pelvic fractures, it is recommended that cross-sectional imaging for hip fractures also include the sacrum, because stress fractures of the sacrum can be the source of radiated hip/groin pain and lower back pain 2
CT scan is particularly well suited for the evaluation of the sacrum and pelvis when assessing the extent of pelvic fractures and their impact on the lower back 2
MRI is more sensitive for detecting occult fractures and soft tissue injuries that may affect the lower back in the context of pelvic trauma 5

Trabecular bone injuries like those in the pelvis and sacrum are associated with longer healing times compared to cortical bone injuries, potentially prolonging lower back symptoms 6
Progressive physical therapy focusing on gait training, strengthening exercises, and balance training can help prevent falls and subsequent fractures while addressing lower back pain 6