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Cruciate ligament avulsion fractures
James F Griffith1, Gregory E Antonio, Christopher W C Tong
1Department of Diagnostic Radiology, Prince of Wales Hospital, Chinese University of Hong Kong, Sha Tin, N.T. Hong Kong. griffith@ruby.med.cuhk.edu.hk
Summary
This study identified two main patterns of anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) avulsion fractures, with computed tomography (CT) aiding in surgical planning.
Area of Science:
- Orthopedic Surgery
- Radiology
- Sports Medicine
Background:
- Cruciate ligament avulsion fractures are common knee injuries.
- Understanding their variability is crucial for effective treatment.
Purpose of the Study:
- To assess the variability in cruciate avulsion fractures.
- To identify distinct patterns of anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) avulsion fractures.
Main Methods:
- Retrospective observational study of 40 patients with cruciate avulsion fractures.
- Standardized radiographs and computed tomography (CT) examinations were utilized.
- Analysis focused on fracture patterns, comminution, and extent.
Main Results:
- Two basic patterns of ACL and PCL avulsion fractures were identified.
- ACL avulsion fractures were predominantly partial (62%), while PCL fractures were often complete or extended (53%).
- Comminution rates were 25% for ACL and 50% for PCL fractures; CT effectively delineated fracture details.
Conclusions:
- Despite variability, two fundamental patterns of ACL and PCL avulsion fractures exist.
- Computed tomography (CT) is valuable for characterizing these fractures.
- CT findings assist in planning surgical fixation for cruciate avulsion fractures.