Superior Labral Anteroposterior Tear

TABLE 1 Current Superior Labral Anteroposterior (SLAP) Lesion Classification with Associated Clinical Findings and Mechanisms of Injury

Type	Biceps-Labral Complex	Extensiona	Comments
Snyder et al. [2]
I	Fraying	11-1	Could be incidental finding; more significant in young people involved in overhead activities
II	Tear with biceps extension	11-1	Most common type; association with acute traction, repetitive overhead motion, and microinstability; could be associated with type IV
III	Bucket-handle tear with intact biceps	11-1	Less severe than type IV; association with fall on outstretched arm
IV	Bucket-handle tear with biceps extension	11-1	More severe than type III because of biceps extension; could be associated with type II; association with fall on outstretched arm
Maffet et al. [15]
V	Not specified	11-5	Either a Bankart lesion with superior extension or a SLAP lesion with anterior inferior extension
VI	Anterior or posterior flap tear	11-1	Probably represents type IV or less likely type III with tear of the bucket-handle component
VII	Not specified	11-3	Type of middle glenohumeral ligament extension (avulsion or split) not specified; association with acute trauma with anterior dislocation
Resnick Db
VIII	Not specified	7-1	Similar to type IIB but with more extensive abnormalities; association with acute trauma with posterior dislocation
IX	Not specified	7-5	Global labrum abnormality; probably traumatic event
Beltran Jc
X	Not specified	11-1 +	Rotator interval extension; articular side abnormalities
Morgan et al. [21]
IIA	II	11-3	Similar to type X; association with repetitive overhead motion
IIB	II	9-11	Association with infraspinatus tear
IIC	II	9-3	Association with infraspinatus tear

• ↵a Clock positions.
• ↵b Unpublished data.
• ↵c Presented at the annual meeting of the Radiological Society of North America, Chicago, IL, December 2000.