Table 1.
Recurrence rates (RR) in different surgical approaches deriving from including all available studies from all geographical regions for 12, 24, 60, and 120 months follow-up time.
| Surgical method (total patients included) | 12 months | 24 months | 60 months | 120 months | Citations | ||||
|---|---|---|---|---|---|---|---|---|---|
| RR in % (95% CI) | Nr. at risk | RR in % (95% CI) | Nr. at risk | RR in % (95% CI) | Nr. at risk | RR in % (95% CI) | Nr. at risk | ||
| Primary open (6351) | 1.3 (1.0–1.7) | 5715 | 4.2 (3.6–4.8) | 3496 | 13.9 (12.2–15.6) | 1222 | 28.1* (23.9–32.4) | 241* | 20– 122 |
| Primary median closure (15011) | 3.1 (2.8–3.5) | 12,484 | 8 (7.4–8.6) | 6956 | 14.9 (13.8–15.9) | 2505 | 27.9 (25.5–30.4) | 631 | 20, 24, 27, 29, 31, 34– 38, 44, 46, 48, 52, 54, 56, 57, 59, 61– 66, 69, 73– 78, 81– 84, 86, 89– 91, 93– 100, 106– 108, 115, 118, 122– 248 |
| Primary asymmetric closure (2538) | 0.6 (0.3–0.9) | 2432 | 1.1 (0.7–1.6) | 1807 | 2.7 (1.9–3.6) | 1205 | 6.3* (4.8–7.7) | 937* | 65, 67, 100, 129, 183, 192, 249– 263 |
| Karydakis/Bascom (6276) | 0.5 (0.3–0.7) | 5868 | 1.6 (1.2–2.0) | 3630 | 6.3 (5.0–7.5) | 853 | NA | NA | 16, 21, 29, 41, 49, 66, 78, 88, 133, 163, 172, 184, 189, 192, 195, 199, 200, 202, 262– 316 |
| Limberg/Dufourmentel (11470) | 0.3 (0.2–0.4) | 10,937 | 1.5 (1.2–1.7) | 7527 | 5.9* (5.1–6.7) | 1638* | NA | NA | 25, 28, 31, 33, 52, 56, 67, 92, 100, 127, 128, 130, 131, 137, 139, 140, 148, 149, 163, 165, 170, 172, 174, 182, 190– 192, 201, 205, 207, 208, 231– 233, 243, 246, 267, 268, 270, 272– 274, 291, 292, 295, 297, 305– 309, 311– 313, 317– 398 |
| Marsupialization (1896) | 2.2 (1.4–2.9) | 1253 | 5.7 (4.2–7.1) | 800 | 7.8* (5.9–9.6) | 566* | NA | NA | 30, 37, 46, 60, 65, 69, 71, 77, 78, 89, 97, 104, 110, 137, 152, 156, 175, 207, 208, 332, 399– 416 |
| Limited excision (3346) | 5.1 (4.2–6.0) | 2746 | 7.4 (6.2–8.5) | 1810 | 13.1 (11.1–15.0) | 804 | NA | NA | 31, 34, 52, 60, 61, 69, 75, 82, 87, 96, 98, 103, 112, 116, 136, 138, 170, 187, 212, 220, 229, 241, 290, 299, 311, 344, 399, 414, 417– 436 |
| Pit picking (5432) | 2.8 (2.4–3.3) | 5221 | 6.6* (5.9–7.4) | 1962* | 14.2 (12.5–15.9) | 1401 | NA | NA | 16, 22, 55, 69, 109, 193, 216, 278, 298, 309, 437– 452 |
| Flaps (3073) | 0.3 (0.1–0.5) | 2902 | 1.1* (0.7–1.5) | 1687* | 6.4* (4.9–8.0) | 708* | NA | NA | 91, 98, 100, 108, 135, 173, 185, 191, 193, 227, 309, 322, 343, 362, 369, 375, 379, 424, 434, 453– 488 |
| Incision and drainage (293) | 6.3* (3.2–9.3) | 259* | 22.3 (15.8–28.9) | 243 | 36.8* (26.3–47.2) | 121* | NA | NA | 20, 52, 55, 77, 184, 212, 223, 253, 489 |
| Phenol only (1453) | 1.6* (0.9–2.3) | 1244* | 14.7 (12.1–17.3) | 687 | NA | NA | NA | NA | 53, 76, 114, 242, 363, 385, 490– 505 |
| Laser treatment (77) | 2.2* (0.0–4.8) | 74* | 11.8* (0.8–22.9) | 47* | NA | NA | NA | NA | 506– 508 |
| Others (1363) | 2.8 (1.9–3.8) | 1247 | 6.6* (4.8–8.4) | 624* | 19.8 (15.7–23.8) | 498 | NA | NA | 15, 16, 309, 430, 489, 509– 523 |
| Partial closure (202) | 0.6* (0.0–1.4) | 202* | 1.1* (0.0–2.5) | 201* | 11.2* (5.9–16.6) | 161* | NA | NA | 62, 98, 143 |