Grading Pseudofractures-The "Breach-Beak-Bump-Bridge" Approach.
Lothar Seefried1, Dominik Rak2, Franca Genest2
1Department of Osteology and Clinical Trial Unit, Orthopedic Hospital, König-Ludwig Haus, Julius-Maximilians-Universität Würzburg, Brettreichstraße 11, 97074, Würzburg, Bavaria, Germany. lothar.seefried@uni-wuerzburg.de.
Calcified Tissue International
|April 16, 2025
Summary
This study introduces the Breach-Beak-Bump-Bridge (4B) grading scale to classify pseudofractures, which are bone lesions often misdiagnosed as fractures. The 4B scale aids in assessing healing and stability in patients with skeletal disorders.
Area of Science:
- Orthopedics
- Radiology
- Bone Metabolism
Background:
- Pseudofractures are radiolucent bone lesions due to poor mineralization, linked to adverse outcomes in skeletal disorders.
- Current literature often conflates pseudofractures with true fractures, hindering characterization of incidence, healing, and recurrence.
- A standardized method for pseudofracture assessment is needed to improve clinical evaluation and research.
Purpose of the Study:
- To propose a novel grading scale for the radiographic identification and assessment of pseudofractures.
- To establish a taxonomy that reflects the healing progression of pseudofractures.
- To enhance communication and clinical management of pseudofractures.
Main Methods:
- Development of a 4-stage grading scale (Breach, Beak, Bump, Bridge) based on clinical experience.
- Observation of radiographic transformations during pseudofracture consolidation.
- Inclusion of modifiers for dislocation ('d') and clinical stability ('s').
Main Results:
- The proposed Breach-Beak-Bump-Bridge (4B) scale categorizes pseudofractures into four distinct radiographic stages.
- The scale captures the dynamic process of pseudofracture healing, acknowledging potential reversibility and relapse.
- The 4B scale is applicable across various anatomical sites and etiologies of pseudofractures.
Conclusions:
- The 4B grading scale offers a standardized tool for assessing pseudofractures in clinical practice.
- This classification system improves diagnostic specificity and clarity in reporting pseudofracture findings.
- The scale facilitates consistent evaluation of pseudofracture progression and stability over time.


