Samilson and Prieto classified the arthropathy that may develop in a patient with a dislocated shoulder. The authors are from the Children’s and Adult Medical Center in San Francisco.
Parameters:
(1) exostosis on the inferior humerus or glenoid
(2) glenohumeral joint irregularity
Exostosis on the Inferior Humerus and/or Glenoid
Glenohumeral Joint
Arthrosis
< 3 mm
normal
mild
3 to 7 mm
slight irregularlity
moderate
>= 8 mm
narrowing and sclerosis
severe
where:
• If exostoses are present on both the inferior humerus and glenoid then there are 2 options: (1) the greater measurement is used, or (2) the sum of both is used. Option 1 is used in the implementation.
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