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Bak Classification of Pectoralis Major Muscle Tendon Injuries
| Type | Description |
|---|---|
| I | Sprain or contusion |
| II | Partial tear |
| III | Complete tear |
| A | Sternoclavicular origin |
| B | Muscle belly |
| C | Musculotendinous junction |
| D | Insertion |
| E | Bony avulsion from insertion |
| F | Muscle tendon substance |
