Hip Fracture Trends in America Between 2009 and 2016

Hip fractures are a common condition associated with high morbidity and mortality. In this study, we assess (1) yearly incidences, (2) demographic factors, (3) postoperative outcomes, (4) primary diagnoses, and (5) primary procedures.

The National Inpatient Sample was queried for patients admitted with hip fractures from 2009 to 2016 (n = 2 761 850). Variables analyzed were age, sex, race, obesity status, Charlson Comorbidity Index, smoking status, osteoporosis status, lengths of stay (LOS), discharge dispositions, charges, costs, mortalities, inpatient complications, primary and secondary diagnoses, and primary procedures.

From 2009 to 2016, the overall gross number of hip fractures decreased (P < .001). At the conclusion of the study, more patients were male, obese, and smokers, while fewer had a diagnosis of osteoporosis (P < .001 for all). Mean LOS significantly decreased (P < .001), while charges and costs increased (P < .001 for both). Both mortality and the overall complication rate decreased (P < .001 for both). Specifically, complications that decreased included myocardial infarctions, deep vein thromboses, pulmonary emboli, pneumoniae, hematomas/seromas, urinary tract infections, and transfusions (P < .001 for all). Complications that increased included cardiac arrests, respiratory failures, mechanical complications, and sepsis (P < .001 for all). The most common diagnosis was "closed fracture of intertrochanteric section of neck of femur." The procedure performed most often was "open reduction of fracture with internal fixation, femur."

An increasing number of males and smokers have sustained hip fractures, although fewer patients with osteoporosis experienced these injuries. A decreasing overall complication rate may indicate improving perioperative courses for hip fracture patients. However, several shortcomings still exist and can be improved to further decrease negative outcomes.