What is SLAP Lesion?
January 8, 2021 || By : Dr. MhmadFarooq || Sports Medicine
What is SLAP Lesion?
- SLAP Lesion is the abbreviation of Superior Labrum from Anterior to Posterior tears.
- It may occur as isolated lesion or be associated with:
- internal impingement
- rotator cuff tears (usually articular sided)
- instability (may be subtle)
- Most common in a Throwing Athlete (repetitive overhead activities).
SLAP lesion Classification (Expanded Snyder classification)
| Type | Description | Treatment |
|---|---|---|
| I | Biceps fraying, intact anchor on superior labrum | Arthroscopic debridement |
| II | Detachment of biceps anchor | Repair versus tenotomy/ tenodesis |
| III | Bucket-handle superior labral tear; biceps intact | Arthroscopic debridement |
| IV | Bucket-handle tear of superior labrum into biceps | – <30% of tendon involvement: debridement – > 30%: repair or debridement and/or tenodesis of tendon |
| V | Labral tear + SLAP lesion | Stabilization of both |
| VI | Superior flap tear | Debridement |
| VII | Capsular injury + SLAP lesion | Repair and stabilization |
Type II is the most common (IIA is anterior, IIB is posterior, IIC is anterior and posterior).
Physical Examination:
- O’Brien Test
- Compression-rotation test
- Speed test
- Dynamic labral shear test
- Kibler anterior slide test
- Crank test
- Kim biceps load test
Imaging:
- MR arthrography is the modality of choice.
- A paralabral cyst is indicative of a SLAP tear (or posterior labral tear).
- Cyst may extend to spinoglenoid notch and compress the suprascapular nerve, leading to infraspinatus wasting.
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