A Comparison Study for Unstable Sacrum/Pelvis and Acetabular Fracture Treated With Open Reduction and Internal Fixation With Minimally Invasive Internal Fixation

Unstable sacral/pelvic or acetabular fracture are severe high energy fractures Surgical intervention are necessary after patient's conditions are stable. The complexity of local anatomical structure, the nearby major vessels, organ and visceral structures make the operations difficult and in high risks.

Inclusion Criteria:18 years old and above with the appropriate informed consenttraumatic pelvic or acetabular fracture with 2018 AO/OTA classificationa minimum of 48 months postoperative follow-upsExclusion Criteria:pelvic or acetabular fractures that were pathological or non-traumatic in naturepatients with incomplete follow-up detailspatients who denied surgical managementpatients who received external fixation as part of their treatment strategy