Hamada et al reported a classification for a massive rotator cuff tear. A massive rotator cuff tear can eventually lead to rotator cuff tear arthropathy (RCTA). The authors are from Tokai University Oiso Hospital in Japan.
Patient selection: massive rotator cuff tear
Parameters:
(1) acromiohumeral interval in mm
(2) glenohumeral joint
(3) tear of the long head of the biceps
Acromiohumeral Interval
Glenohumeral Joint
Tear in the Long Head of the Biceps
Grade
> 6 mm
normal
absent (intact)
1
< 5 mm
normal
present
2
acetabulization
normal
present
3
acetabulization
narrowed
present
4
acetabulization
humeral head collapse
present
5
where:
• Acetabulization of the coracoacromial arch: pseudoarticulation of the humerus with the undersurface of the acromion with resultant concave erosion of the acromion.
• Femoralizaton of the humerus: erosion and rounding of the greater tuberosity.
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