The 27-year-old has been suffering with the problem for a number of months and will go under the knife at the end of the season.
Piszczek will then be expected to miss the start of the 2013-14 campaign as he could be out of action for five months.
The Poland international right-back has been at Dortmund since 2010.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Bayern MunichBayern | 13 | 10 | 3 | 0 | 41 | 10 | 31 | 33 |
| 2 | Eintracht FrankfurtFrankfurt | 13 | 8 | 3 | 2 | 33 | 18 | 15 | 27 |
| 3 | Bayer LeverkusenB. Leverkusen | 13 | 7 | 5 | 1 | 30 | 20 | 10 | 26 |
| 4 | RB Leipzig | 13 | 7 | 3 | 3 | 21 | 14 | 7 | 24 |
| 5 | Freiburg | 14 | 7 | 3 | 4 | 20 | 19 | 1 | 24 |
| 6 | Wolfsburg | 14 | 6 | 3 | 5 | 31 | 25 | 6 | 21 |
| 7 | Borussia DortmundDortmund | 13 | 6 | 3 | 4 | 24 | 20 | 4 | 21 |
| 8 | Stuttgart | 13 | 5 | 5 | 3 | 26 | 23 | 3 | 20 |
| 9 | Mainz 05Mainz | 13 | 5 | 4 | 4 | 23 | 18 | 5 | 19 |
| 10 | Werder Bremen | 13 | 5 | 4 | 4 | 20 | 24 | -4 | 19 |
| 11 | Borussia MonchengladbachBorussia M'bach | 13 | 5 | 3 | 5 | 19 | 18 | 1 | 18 |
| 12 | Union BerlinUnion Berlin | 13 | 4 | 4 | 5 | 12 | 14 | -2 | 16 |
| 13 | Augsburg | 13 | 4 | 4 | 5 | 16 | 25 | -9 | 16 |
| 14 | Hoffenheim | 13 | 3 | 4 | 6 | 18 | 25 | -7 | 13 |
| 15 | St Pauli | 13 | 3 | 2 | 8 | 11 | 17 | -6 | 11 |
| 16 | Heidenheim | 13 | 3 | 1 | 9 | 17 | 28 | -11 | 10 |
| 17 | Holstein Kiel | 13 | 1 | 2 | 10 | 13 | 33 | -20 | 5 |
| 18 | VfL BochumVfL Bochum | 13 | 0 | 2 | 11 | 10 | 34 | -24 | 2 |
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