Calcaneal fracture maps and their determinants

Area of Science:

• Orthopedic surgery
• Biomechanics
• Radiology

Background:

• Calcaneal fractures lead to poor prognosis and quality-of-life issues.
• Understanding calcaneal fracture mechanisms is crucial for improved patient treatment.
• Research into fracture line distribution and determinants is of significant interest.

Purpose of the Study:

• To investigate the relationship between calcaneal fracture line distribution and its determinants.
• To explore the role of the calcaneus' internal structure in fracture patterns.
• To create detailed fracture maps for analysis.

Main Methods:

• Retrospective analysis of 226 calcaneal fractures in 210 patients.
• Creation of fracture maps by copying and stacking fracture lines from 3D models.
• Conversion of stacked images into spectrograms using MATLAB to identify fracture frequencies.

Main Results:

• Identified concentrated fracture bands and hot spots on superior, medial, and lateral calcaneal surfaces.
• Observed vertical fracture lines on the anterior surface and superiorly centered lines on the posterior surface.
• Correlated all fracture locations with interfaces between internal calcaneal trabecular groups.

Conclusions:

• Fracture maps effectively illustrate recurrent fracture zones on all calcaneal surfaces.
• The shape of the talus and calcaneus are critical factors in fracture patterns.
• Internal calcaneal architecture, particularly trabecular arrangement, is essential in calcaneal fractures.