Posterior cruciate ligament injury
Conditions
Interventions
PCL tibial insertion avulsion fracture group:None
PCL intrasubstance ligament tear group:None
Sponsors
The Affiliated Hospital of Xuzhou Medical University
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1. Age >= 18 years, any gender. 2. Clinically diagnosed with acute posterior cruciate ligament (PCL) injury, with the time from injury to imaging examination generally <= 6 weeks. 3. Have knee MRI data and/or surgical records that can be used to determine the PCL injury pattern. 4. Have knee CT raw images or thin-slice images that can be used for MPR reconstruction, which can be used to measure tibial insertion bone quality and PCL HU values. 5. Medical records must at least include basic information such as age, gender, injured side, mechanism of injury, and imaging examination time.
Exclusion criteria
Exclusion criteria: 1. Chronic PCL injuries, unknown injury time, or injuries where more than 6 weeks passed before imaging. 2. History of surgery on the same knee or a known previous PCL injury. 3. Combined severe tibial plateau fracture, distal femur fracture, severe bone damage after knee dislocation, or other injuries that affect ROI measurement. 4. Severe knee osteoarthritis, rheumatoid arthritis, infection, tumor, metabolic bone disease, or other conditions that obviously affect local bone/ligament imaging. 5. CT images with too thick slices, poor reconstruction quality, obvious motion artifacts, significant metal artifacts, or inability to clearly identify the PCL tibial attachment area. 6. Insufficient MRI or surgical data, making it impossible to reliably determine the injury pattern. 7. Other situations the researchers believe are not suitable for inclusion in this study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| PCL Injury Pattern;Tibial attachment bone fragment / bone density (HU) around the attachment;PCL intrinsic HU values, including proximal, mid, distal, and overall average HU values; | — |
Secondary
| Measure | Time frame |
|---|---|
| General clinical variables: age, gender, BMI, injured side;Injury variables (injury mechanism, time from injury to CT scan, time from injury to MRI scan, high-energy/low-energy injury classification);Imaging variables (maximum diameter of fracture fragments, degree of displacement, degree of comminution, associated meniscus injury, cartilage damage, ACL/MCL/LCL/PLC injuries);Measurement variables (intra-observer consistency, inter-observer consistency); | — |
Countries
China
Contacts
Public ContactWei Zheng
The Affiliated Hospital of Xuzhou Medical University
Outcome results
None listed