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The floating hip injury: a descriptive study and case-control analysis.

Mark Y Z Wong^1,2, Marios Ghobrial¹, Win M Han¹

¹Cambridge Orthopaedic Pelvic Unit (COPU), Department of Trauma and Orthopaedic Surgery, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK.

Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy

|March 13, 2023

Summary

This summary is machine-generated.

Floating hip injuries, a rare combination of femur and pelvis fractures, lead to more complications and longer hospital stays compared to similar pelvic fractures. These findings highlight the need for tailored treatment strategies.

Keywords:

Acetabular fracture femur fracture floating hip ipsilateral pelvic fracture

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Area of Science:

Orthopaedic Surgery
Trauma Management
Biomechanics

Background:

Floating hip (FH) injury is a rare and severe condition involving simultaneous ipsilateral femur and pelvis/acetabulum fractures.
Understanding the unique characteristics and outcomes of FH injuries is crucial for effective patient management.

Purpose of the Study:

To describe the experience with floating hip injuries.
To compare FH injuries with similar pelvic/acetabular fractures without femoral involvement.

Main Methods:

Retrospective review of medical records and radiographs for FH patients and matched controls (2015-2020).
Extensive matching of controls by age, sex, BMI, fracture classification, and injury energy.
Follow-up data extracted from outpatient clinical records.

Main Results:

42 FH cases identified from 1392 pelvic/acetabular fractures; average age 39 years, 78.6% males.
Midshaft femur fractures were most common (35.7%), followed by femoral neck fractures (26.2%).
FH cases showed higher rates of additional orthopaedic injuries (73.8% vs. 40.5%), more theatre admissions (2.5 vs. 1.19), longer hospital stays (28.3 vs. 14.9 days), and increased post-op complications (53.8% vs. 20%) compared to controls.

Conclusions:

Significant differences in presentation, management, and outcomes exist between FH injuries and matched controls.
FH injuries are associated with greater injury severity and poorer outcomes, even after controlling for confounders.
Findings may guide future treatment strategies for floating hip injuries.