Klengel, Alexis
[VerfasserIn];
Steinke, Hanno
[VerfasserIn];
Pieroh, Philipp
[VerfasserIn];
Höch, Andreas
[VerfasserIn];
Denecke, Timm
[VerfasserIn];
Josten, Christoph
[VerfasserIn];
Osterhoff, Georg
[VerfasserIn]
Integrity of the pectineal ligament in MRI correlates with radiographic superior pubic ramus fracture displacement
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Medientyp:
E-Artikel
Titel:
Integrity of the pectineal ligament in MRI correlates with radiographic superior pubic ramus fracture displacement
Beteiligte:
Klengel, Alexis
[VerfasserIn];
Steinke, Hanno
[VerfasserIn];
Pieroh, Philipp
[VerfasserIn];
Höch, Andreas
[VerfasserIn];
Denecke, Timm
[VerfasserIn];
Josten, Christoph
[VerfasserIn];
Osterhoff, Georg
[VerfasserIn]
Anmerkungen:
Hinweis: Link zur Erstveröffentlichung URL: https://dx.doi.org/10.1177/0284185120913002
Beschreibung:
Background: Estimating the stability of pelvic lateral compression fractures solely by static radiographs can be difficult.
In this context, the role of anterior pelvic soft tissues as potential secondary stabilizer of the pelvic ring has hardly been
investigated.
Purpose: To correlate the initial radiographic appearance of the pubic ramus fracture with the integrity of the pectineal
ligament, a strong ligament along the pecten pubis.
Material and Methods: In total, 31 patients with a pelvic lateral compression fracture (AO/OTA 61- B1.1/B2.1) with
33 superior pubic ramus fractures and available post-traumatic radiographs (pelvis anteroposterior, inlet, outlet) and
magnetic resonance imaging (MRI) of the pelvis with fat-suppressed coronal images were reviewed retrospectively.
Radiographic superior pubic ramus fracture displacement was measured and correlated to the degree of MRmorphologic
alterations of the pectineal ligament (grade 0¼intact, grade 3¼rupture).
Results: In the majority of fractures (72.7%), associated MR-morphologic alterations of the pectineal ligament were
present. Radiographic displacement and MRI grading showed a strong positive correlation (Spearman rho¼0.783,
P<0.001). The sensitivity and specificity for a radiographic displacement of >3mm on plain radiographs to detect a
structural ligament lesion on MRI (grade 2 and higher) were 73% and 100%, respectively.
Conclusion: Radiographic displacement of superior pubic ramus fractures >3mm is a strong indicator for a structural
lesion of the pectineal ligament. Future studies should investigate the potential biomechanical importance of this ligament
for pelvic ring stability.