Proximal Humerus Ossification System Guide for Radiographic Evaluation
This guide provides a detailed overview of the ossification stages in the proximal humerus for radiographic evaluation. It includes images and descriptions of each stage, from open and incompletely ossified to closed and fully ossified, aiding in accurate interpretation of radiographs. Understanding these stages is essential for assessing skeletal maturity and diagnosing developmental abnormalities in the shoulder region.
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Presentation Transcript
Proximal Humerus Ossification System Guide for Radiographic Evaluation
Schematic Overview of Stages Notched Open Collinear Closed Collinear Open Collinear Closing Triangular Open
Radiographic Overview of Stages Collinear Closing Collinear Closed Notched Open Collinear Open Triangular Open
Stage 1 Triangular, Open Incompletely ossified lateral epiphysis Triangular area of radiolucency Lateral half of physis completely open
Stage 2- Notched, Open Increased ossification of the lateral epiphysis with curvilinear lateral margin Crescent-shaped area of radiolucency Lateral half of physis completely open
Stage 3 Colinear, Open Complete ossification of lateral epiphysis Lateral epiphyseal margin is colinear with metaphysis Lateral half of physis completely open
Stage 4 Colinear, Closing Complete ossification of lateral epiphysis Lateral epiphyseal margin is colinear with metaphysis Lateral half of physis partially closed
Stage 5 Colinear, Closed Complete ossification of lateral epiphysis Lateral epiphyseal margin is colinear with metaphysis Lateral half of physis completely closed Near complete closure is sufficient
