Patellar calcar: morphometric analysis by knee magnetic resonance imaging and three-dimensional reconstruction software-assisted

This study aimed to describe patellar calcar morphometry by knee MRI and develop a 3D reconstruction software-assisted.Materials and methodsConsecutive adult patients, submitted to knee MRI, between 2014 and 2017, were entered in IMPAX software. Exclusion criteria are history of patellar surgical intervention, trauma, chondromalacia, bone edema or bipartite patella. All MRI images were retrospectively reviewed by three readers. MRI patellar calcar measurements are height, width, thickness and posterior distance. 3D model protocol reconstruction: 3D Slicer software was used to design a preliminary model for each patient, and then all were automatically merged into one, which was finalized using the software segmentation tools. For 3D patellar calcar location, the transpolar axis was designed.Results250 MRI were analyzed, patellar calcar was present in 208 (83.2%); 101 men and 107 women. Mean age was 44.3  ± 15.6 years. Measurements: height 13.84 ± 2.42 mm (male: 14.50 ± 2.42; female: 13.21 ± 2.26) (p 
Source: Surgical and Radiologic Anatomy - Category: Anatomy Source Type: research

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